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How Copper is Mined and Refined: "A Story Of Copper" 1951 US Bureau of Mines
 
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Support this channel: https://www.patreon.com/jeffquitney more at http://scitech.quickfound.net/geology_news_and_links.html "Tells the story of the mining and manufacture of copper from the crude ore to the finished product. lots of footage of giant machines, some blasting." Originally a public domain film, slightly cropped to remove uneven edges, with the aspect ratio corrected, and mild video noise reduction applied. The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and/or equalization (the resulting sound, though not perfect, is far less noisy than the original). https://en.wikipedia.org/wiki/Copper_extraction_techniques Wikipedia license: http://creativecommons.org/licenses/by-sa/3.0/ Copper extraction techniques refers to the methods for obtaining copper from its ores. The conversion of copper consists of a series of chemical, physical, and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors. As in all mining operations, the ore must usually be beneficiated (concentrated). To do this, the ore is crushed. Then it must be roasted to convert sulfides to oxides, which are smelted to produce matte. Finally, it undergoes various refining processes, the final one being electrolysis. For economic and environmental reasons, many of the byproducts of extraction are reclaimed. Sulfur dioxide gas, for example, is captured and turned into sulfuric acid — which is then used in the extraction process... History The earliest evidence of cold-hammering of native copper comes from the excavation at Çaÿonü Tepesi in eastern Anatolia. The radiocarbon date is 7250 ± 250 BCE. Among the various items considered to be votive or amulets there was one that looked like a fishhook and one like an awl. An archaeological site in southeastern Europe (Serbia) contains the oldest securely dated evidence of copper making at high temperature, from 7,000 years ago. The find in June 2010 extends the known record of copper smelting by about 500 years, and suggests that copper smelting may have been invented in separate parts of Asia and Europe at that time rather than spreading from a single source. Copper smelting technology gave rise to the Copper Age and then the Bronze Age. Concentration Most copper ores contain only a small percentage of copper metal bound up within valuable ore minerals, with the remainder of the ore being unwanted rock or gangue minerals, typically silicate minerals or oxide minerals for which there is often no value. The average grade of copper ores in the 21st century is below 0.6% copper, with a proportion of economic ore minerals (including copper) being less than 2% of the total volume of the ore rock. A key objective in the metallurgical treatment of any ore is the separation of ore minerals from gangue minerals within the rock. The first stage of any process within a metallurgical treatment circuit is accurate grinding or comminution, where the rock is crushed to produce small particles... Subsequent steps depend on the nature of the ore containing the copper. For oxide ores, a hydrometallurgical liberation process is normally undertaken, which uses the soluble nature of the ore minerals to the advantage of the metallurgical treatment plant. For sulfide ores, both secondary (supergene) and primary (hypogene), froth flotation is used to physically separate ore from gangue. For special native copper bearing ore bodies or sections of ore bodies rich in supergene native copper, this mineral can be recovered by a simple gravity circuit... Until the latter half of the 20th century, smelting sulfide ores was almost the sole means of producing copper metal from mined ores (primary copper production)... The copper is refined by electrolysis. The anodes cast from processed blister copper are placed into an aqueous solution of 3–4% copper sulfate and 10–16% sulfuric acid. Cathodes are thin rolled sheets of highly pure copper or, more commonly these days, reusable stainless steel starting sheets (as in the IsaKidd process). A potential of only 0.2–0.4 volts is required for the process to commence. At the anode, copper and less noble metals dissolve. More noble metals such as silver, gold, selenium, and tellurium settle to the bottom of the cell as anode slime, which forms a salable byproduct. Copper(II) ions migrate through the electrolyte to the cathode. At the cathode, copper metal plates out, but less noble constituents such as arsenic and zinc remain in solution unless a higher voltage is used. The reactions are: At the anode: Cu(s) → Cu2+(aq) + 2e− At the cathode: Cu2+(aq) + 2e− → Cu(s)...
Views: 70184 Jeff Quitney
10 MOST TOXIC Places On Earth
 
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From the DIRTIEST Cities, to nuclear wastelands ; these are the 10 MOST TOXIC Places On Earth. HEY YOU ! There are more awesome videos being made every week, like and subscribe to World Unearthed so you don't miss a beat ! 10.La Oroya | Peru 9.Dhaka | Bangladesh 8. Norilsk | Russia The city has been branded as the most polluted city in Russia, where the snow is black, air tastes like sulfur and rivers run red. Life expectancy of employees in the smelter is 10 years below the Russian average. By some estimates, 1% of the world`s sulfur dioxide emission comes from the Norilsk nickel mines. Nearly 500 tons of copper and nickel as well as two million tons of sulfur dioxide are released into the air, annually. In 2016 the nearby Daldykan River turned red and the evidence pointed to privately owned wastewater pipes. The company accepted the responsibility while claiming that the coloring was of no danger to humans or wildlife. The smelting plant was in the process of being modernized and steps are being taken in order to reduce pollution. 7.Nevada Proving Grounds | Nevada Nevada Proving Grounds, now known as the Nevada Test Site or Nevada National Security Site is a U. S. Department of Energy reservation in Nye County, Nevada, 65 miles northwest from Las Vegas. The tests stopped in 1994 but the area is still extremely radioactive. Even though the radioactivity in the water is gradually declining, isotopes like plutonium and uranium could pose risks to workers or future settlers on the NNSS for tens of thousands of years. 6.Shanghai | China In December of 2013, Shanghai suffered a great spike in air pollution when the so called “2013 Eastern China Smog” occurred. The pollution levels were between 23 and 31 times the international standard. Nearly one-third of all government vehicles were pulled off the streets, construction work was halted, student`s outdoor activities were suspended, flights were cancelled or diverted. And even though air pollution in Shanghai is substantial by the world standard, it is still lower than other cities in China. Among the top 500 most polluted cities in the world, Chinese cities hold 179 spots. Thankfully, China is taking extremely serious measures to reduce pollution, closing coal factories, smelters and mills while switching over to more eco-friendly energy sources. 5.Northwest Arctic | Alaska Out of all the states in the union, Alaska produces the most toxins, outranking every other state by nearly 3 times. A closer look reveals that 91% of all of Alaska`s emissions come from one county, Northwest Arctic, most of it originating from one city – Kotzebue, population 7,500. So how is it possible that a tiny city, in the middle of nowhere Alaska is responsible for so much pollution? Well, just 90 miles from Kotzebue is Red Dog Mine, the largest source of zinc in the world. It was established in 1987 and each year, it releases 756 million pounds of toxins into the environment. 4.Asse II mine | Germany The Asse II mine opened between 1906, initially extracting potash (until 1925) and producing rock salt (1916-1964). But during the period between 1964 and 1995 the mine was used as a storage of radioactive waste. Now, this mine has been abandoned, with barrels of low-level and medium-level waste in a jumbled heap, some of it not even contained properly. There`s fears that the mine could fill with water and authorities are rushing to remove the waste with remotely operated vehicles since it is unsafe for workers to go in there. 3. | New Mexico The Waste Isolation Pilot Plant’s history is relatively short, it became operational in 1999. The facility is used to store transuranic waste left over from nuclear weapons research. Transuranic waste consists of clothing, tools, rags, residues, debris, soil and other items contaminated with radioactive elements, mostly plutonium. 2.Pacific Proving Grounds | Pacific Ocean Pacific Proving Grounds is the name given to a number of sites on the Marshall Islands and in the Pacific Ocean which were used for nuclear testing between 1946 and 1962. The US conducted 105 atmospheric and underwater nuclear tests in the Pacific. 1.Pripyat | Ukraine 50000 People used to live here... Now it's a ghost town. Radiation levels were so high that Nuclear Power stations in Sweden, Finland and Norway detected the anomaly. Twenty years later, the area is still uninhabitable. Except for the 197 people living in 11 villages scattered in the Chernobyl Exclusion Zone. The average age is 63.
Views: 298112 World Unearthed
Sterlite Copper CSR
 
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We are India's largest non-ferrous metals and mining company and are one of the fastest growing private sector companies.
Views: 242 sterliteindustries
Ruling due on cleanup extension for US-owned smelter
 
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SHOTLIST 1. Wide shot of La Oroya town with smoke billowing from an industrial chimney in the background 2. Various of chimney 3. Various of people at the main street 4. Woman with child going up the hill 5. SOUNDBITE (Spanish) Edith Rodrigo, Local resident: "I feel very sad because my baby here has got 73-80 (microgrammes) of lead in his blood. And I don't know, I guess it's because we live here at the very front (of the metal smelter) and when the smoke descends it makes us cough." 6. Child looking through window 7. SOUNDBITE (Spanish) Maria Mamani, Local resident: " Yes, yes we have all the same cough, we are all, everything is contaminated because of the smoke." 8. Woman with child 9. Set up of Doctor Jesus Diaz Matos 10. SOUNDBITE (Spanish) Jesus Diaz Matos, Head of Children's Medical Unit in La Oroya: "They said that the ideal for a child is to have less that 10 microgrammes of lead in one decilitre of blood. We have found in the majority of children, in almost the 100 percent, that they were above that level. They were different levels, between 10 and 20 microgrammes, between 20 and 40 microgrammes, between 40 and 60 microgrammes and even some with more that 70 microgrammes." 11. Cutaway of Diaz Matos 12. SOUNDBITE (Spanish) Jesus Diaz Matos, Head of Children's Medical Unit in La Oroya: "Evidently this is the reality, a reality not accepted by many people but that is going to continue for a while." 13. Various of the sulphuric acid treatment plant STORYLINE Peru's government is expected to decide next week whether to grant a US company's request for a three-year grace period to complete a sulfuric acid treatment plant in the Andean community of La Oroya which would lower sulfur dioxide emissions. The facility produces copper, lead, zinc and smaller amounts of gold, silver and other metals - emitting a dusty cloud containing lead, sulfur dioxide, cadmium and arsenic into the sky in the process. The St Louis-based Doe Run Company had agreed to improve the 82-year-old smelter when it bought the plant in 1997 from state-owned Centromin, which ran the plant from 1974. However, in late 2004, the company threatened to close its operations in La Oroya - about 140 kilometres (90 miles) east of the capital of Lima - if the government did not grant more time to complete environmental upgrades. Peru gave in, but said in February that any extension for the company would not exceed three years. Doe Run had hoped for at least four, saying it needed more time and that the environmental upgrades would cost nearly twice its original commitment. The latest extension request by the US company caused a heated debate in Peru, with environmental groups and several lawmakers leaning heavily on regulators to deny the extension. Many residents _ including La Oroya's mayor _ support a time extension, fearful of driving away the company and its jobs. They point to a study carried out in 2004 by the company and health authorities that show that more than 99 percent of nearly 800 children aged six and under living near the smelter have blood lead levels that still exceed international standards. Doctor Jesus Diaz Matos, who is the head of the Children's Medical Unit in La Oroya, said some of the people he had examined had up to "70 microgrammes of lead" per decilitre of blood. The World Health Organisation accepts up to 10 microgrammes of lead per decilitre of blood. Last December, a team from the Saint Louis University School of Public Health found that cadmium, known to cause kidney failure and lung and prostate cancer, was six times higher than normal US levels. Elevated levels of antimony, arsenic, caesium and other toxic substances also were found in the bodies of La Oroya's residents, their study found. You can license this story through AP Archive: http://www.aparchive.com/metadata/youtube/290e38abc946354652fe35ccafd72253 Find out more about AP Archive: http://www.aparchive.com/HowWeWork
Views: 43 AP Archive
What is FLASH SMELTING? What does FLASH SMELTING mean? FLASH SMELTING meaning & explanation
 
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What is FLASH SMELTING? What does FLASH SMELTING mean? FLASH SMELTING meaning - FLASH SMELTING definition - FLASH SMELTING explanation. Source: Wikipedia.org article, adapted under https://creativecommons.org/licenses/by-sa/3.0/ license. Flash smelting is a smelting process for sulfur-containing ores including chalcopyrite. The process was developed by Outokumpu in Finland and first applied at the Harjavalta plant in 1949 for smelting copper ore. It has also been adapted for nickel and lead production. A second flash smelting system was developed by the International Nickel Company ('INCO') and has a different concentrate feed design compared to the Outokumpu flash furnace. The Inco flash furnace has end-wall concentrate injection burners and a central waste gas off-take, while the Outokumpu flash furnace has a water-cooled reaction shaft at one end of the vessel and a waste gas off-take at the other end. While the INCO flash furnace at Sudbury was the first commercial use of oxygen flash smelting, fewer smelters use the INCO flash furnace than the Outokumpu flash furnace. Flash smelting with oxygen-enriched air (the 'reaction gas') makes use of the energy contained in the concentrate to supply most of the energy required by the furnaces. The concentrate must be dried before it is injected into the furnaces and, in the case of the Outokumpu process, some of the furnaces use an optional heater to warm the reaction gas typically to 100–450 °C. The reactions in the flash smelting furnaces produce copper matte, iron oxides and sulfur dioxide. The reacted particles fall into a bath at the bottom of the furnace, where the iron oxides react with fluxes, such as silica and limestone, to form a slag. In most cases, the slag can be discarded, perhaps after some cleaning, and the matte is further treated in converters to produce blister copper. In some cases where the flash furnaces are fed with concentrate containing a sufficiently high copper content, the concentrate is converted directly to blister in a single Outokumpu furnace and further converting is unnecessary. The sulfur dioxide produced by flash smelting is typically captured in a sulfuric acid plant, removing the major environmental effect of smelting. Outotec, formerly the technology division of Outokumpu, now holds Outokumpu's patents to the technology and licenses it worldwide. INCO was acquired by Brazil's Vale in 2006.
Views: 1318 The Audiopedia
PERU: US OWNED COPPER SMELTER CAUSING POLLUTION PROBLEM
 
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Spanish/Nat A U-S owned copper smelter in Peru is providing hundreds of jobs in the south of the country, but environmentalists want it closed. They claim the company is taking advantage of Peru's lax environmental regulations and is spewing out pollutants. Like many other developing countries, Peru faces a development dilemma. The country is desperate for economic development but environmentalists claim this often comes at the cost of environmental degradation. This U-S-owned copper smelter is in Ilo, a small town in southern Peru. The facility is the largest in the country generating huge profits and providing hundreds of jobs. But environmentalists want it closed. They claim the company is taking advantage of Peru's lax environmental regulations and spewing out pollutants that are sickening the population and poisoning the environment. Every night residents get down on their knees and stuff cloth in the cracks around their doors and windows to protect their families from the acrid smoke released by the smelter. Young children like this one are among the many residents suffering from respiratory ailments. SOUNDBITE: (Spanish) "The doctor says it's a permanent affliction. He was diagnosed with bronchial allergy. At the moment his right lung is very contaminated." SUPER CAPTION: Antonia Serran, child's mother At times the smoke from the smelter is so thick that it hovers over the city like a heavy fog. On days like these, residents often end up at the local hospital coughing and vomiting -- and children are told to play indoors. SOUNDBITE: (Spanish) "Children cannot study in their schools, they can't exercise. It's really tough when too many people come in (to the hospital). According to hospital data most cases are respiratory ailments." SUPER CAPTION: Ernesto Herrera, Mayor of Ilo But residents are not the only apparent victims. These olive trees are also ailing. Officials from the Southern Peru Copper company maintain their smelter is not to blame for the town's health problems. Environmentalists concede the plant complies with Peruvian environmental standards but they say that is precisely the problem. They claim that all too often the absence of strong anti-pollution laws in many developing countries enable multinationals to pollute the local environment. Residents of Ilo have taken legal action against the company. But lawyers say officials have not shown any interest in solving their problems. SOUNDBITE: (Spanish) "As I said it's a matter of will. They're not interested in solving the pollution problem, because as one manager said during an interview with a French TV network, we are not in the United States, implying that because they are in Peru they can do whatever they please." SUPER CAPTION: Lady Guzman, lawyer representing Ilo residents Ilo residents face an uphill struggle in their legal battle. Though the provincial health minister has publicly claimed respiratory ailments are the leading health problem in Ilo, there are no medical studies showing a direct link between the town's health problems and emissions from the smelter. You can license this story through AP Archive: http://www.aparchive.com/metadata/youtube/6ae3189a15f7e435a3f3d2db0ae1d3c9 Find out more about AP Archive: http://www.aparchive.com/HowWeWork
Views: 111 AP Archive
Our company is the largest producer of manganese concentration in Ukraine! We are proud of it!
 
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Item : Manganese concentrate specification : Mn % 33,5%min- 36%max SiO2 % 24,4%max- constant will not change CaO% 1,9%max- constant will not change P % 0,166%max- constant will not change Fe % 3,6%max- constant will not change Size: 0 to - 1mm 85% 1 to - 10 mm 15%
Views: 96 Sergey Antonov
Free Gold Found In Mineralized Outcropping
 
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A 40 meter wide zone with disseminated pyrite, several smaller veins of sulfides found one sample was sent in from this zone assays came back with trace silver, 0.66% copper and 1.1g/to gold. Want to support us? All money will go to fund new videos and some prizes for our patrons! Please go to the link below! https://www.patreon.com/911mining https://shop.spreadshirt.com/911mining Also don't forget to follow us on Facebook! https://m.facebook.com/911mining Thank you & Enjoy! 911 Mining & Prospecting Co
housekeeping crushing plant copper
 
05:21
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Views: 108 rxlp qloga
Uses of Sulfuric Acid 1930
 
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Sulfuric acid has many applications, and is one of the top products of the chemical industry. World production in 2001 was 165 million tonnes, with an approximate value of US$8 billion. Principal uses include lead-acid batteries for cars and other vehicles, ore processing, fertilizer manufacturing, oil refining, wastewater processing, and chemical synthesis. Sulfuric acid (sulphuric acid in British English) is a strong mineral acid with the molecular formula H2SO4. It is soluble in water at all concentrations. In industrial use, although sulfuric acid is non-flammable, contact with metals in the event of a spillage can lead to the liberation of hydrogen gas. The dispersal of acid aerosols and gaseous sulfur dioxide is an additional hazard of fires involving sulfuric acid. Sulfuric acid is not considered toxic besides its obvious corrosive hazard, and the main occupational risks are skin contact leading to burns (see above) and the inhalation of aerosols. Exposure to aerosols at high concentrations leads to immediate and severe irritation of the eyes, respiratory tract and mucous membranes: this ceases rapidly after exposure, although there is a risk of subsequent pulmonary edema if tissue damage has been more severe. At lower concentrations, the most commonly reported symptom of chronic exposure to sulfuric acid aerosols is erosion of the teeth, found in virtually all studies. In the laboratory, the corrosive properties of sulfuric acid are accentuated by its highly exothermic reaction with water. Burns from sulfuric acid are potentially more serious than those of comparable strong acids (e.g. hydrochloric acid), as there is additional tissue damage due to dehydration and particularly secondary thermal damage due to the heat liberated by the reaction with water. The standard first aid treatment for acid spills on the skin is, as for other corrosive agents, irrigation with large quantities of water. Washing is continued for at least ten to fifteen minutes to cool the tissue surrounding the acid burn and to prevent secondary damage. Contaminated clothing is removed immediately and the underlying skin washed thoroughly. Preparation of the diluted acid can also be dangerous due to the heat released in the dilution process. The concentrated acid is always added to water and not the other way round, to take advantage of the relatively high heat capacity of water. Addition of water to concentrated sulfuric acid leads to the dispersal of a sulfuric acid aerosol or worse, an explosion. For more information on the workplace hazards of sulfuric acid, go to http://198.246.98.21/niosh/ipcsneng/neng0362.html . This is clipped from the 1930 US Bureau of Mines silent film, Sulphur. The Texas Gulf Sulphur Company assisted with the film. The entire film is available at the US National Archive.
Views: 7169 markdcatlin
sulfuric acid copper leaching
 
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More Details : http://wwa.stonecrushersolution.org/solutions/solutions.html we will provide a professional answer and quality of services. If this video does not meet your needs I apologize here. Visit Website: http://www.gospellightbaptistschool.com Contact Us For Help: http://www.gospellightbaptistschool.com/chat.html Technical Review, Copper Separation and Processing in The copper solvent extraction produces acid in the 1 mole of sulphuric acid. In low tenor copper solutions this “Copper Solvent Extraction: Concentrate Leach Control of Sulfur Dioxide Emissions From Copper Smelters , , , , , , IV, LIST OF FIGURES 1 Schematic Flow Diagram for Acid Leaching Copper Concentrates. . 15 2 Equipment for Leaching Neutral equipment for leaching by sulphuric acid tantalite minerals Zirconium in Sulfuric Acid Applications 211 Кб. Zirconium has been used very successfully in many sulfuric acid applications. The advantage of zirconium is that Reacting copper(II) oxide with sulfuric acid, Nuffield Class practical. In this experiment an insoluble metal oxide is reacted with a dilute acid to form a soluble salt. Copper(II) oxide, a black solid, and colourless Extraction of Tin and Copper by Acid Leaching of PCBs Sulfuric acid was found unable to leach the solder at low Leaching of copper and tin from Extraction of Tin and Copper by Acid Leaching of PCBs Studies on the curing and leaching kinetics of mixed copper ores Title: Studies on the curing and leaching kinetics of mixed copper ores: Author: Barriga Vilca, Abrahan: Degree: Master of Applied Science, MASc: Program Sulphuric Acid Market Outlook The Outlook for Sulphuric Acid Sulphuric Acid Market Outlook Forecast Sulphuric Acid Use for Nickel Leaching ? Demand for sulphuric acid for copper leaching appears to be reaching its leaching, Department of Hydrology and Water Resources The chemical and kinetic mechanism for leaching of chrysocolla by sulfuric acid Hydrologic mechanisms and optimization of in, situ copper leaching: case sulfide type copper ore acid leaching Patent US8257671, Method of leaching copper sulfide ore A method of leaching copper sulfide ore includes leaching copper from copper sulfide ore using a sulfuric Patent US6409799, Copper leach process aids, Google Patents Methods for enhancing the leaching of copper from copper bearing ores with an aqueous sulfuric acid leach solution are disclosed wherein an antifoam formulation Evaluation of sulfuric acid baking and leaching of enargite quent leaching of copper, arsenic and iron, and the deportment of these elements during baking and leaching. Materials and methods Leaching of Chalcopyrite (CuFeS 2 ) with Sodium Chloride Leaching of Chalcopyrite (CuFeS 2) with Sodium Chloride Sulfuric Acid Solutions. Fausto J. Mu?oz, Ribadeneira, Henry J. Gomberg Patent US3260593, Process for leaching copper from lowgrade ph adjustment (i0 ph i.9'2.4) hot stripped solution hot ph adjusted leach solution ore materials waste dump (metallic iron) sulphuric acid leach solution (pregnuni Patent US8163063, Method of leaching copper sulfide ore with A method of leaching copper from a copper sulfide ore, characterized by comprising using, as a leaching solution, a sulfuric acid solution containing iodide ions and SID.ir, EXTRACTION OF COPPER FROM MECHANICALLY ACTIVATED In this research, the copper extraction from the activated copper concentrate of Miduk mine was studied by leaching in the diluts sulfuric acid solution. process of zinc metal by acid leach Iron Control in Zinc Pressure Leach Processes, TMS. The zinc pressure leach process depends upon the react with sulfuric acid and oxygen to produce metal Gold Leaching, Gold Recovery from Natural Gold Rocks & Ore Leaching Gold from Natural Gold Rocks and Ore with H2O2. Gold Recovery and Gold Extraction from a Gold Leach. Sulfuric Acid Copper Leaching Response surface methodology for optimization of copper leaching . 2 Aug 2011 Abstract. The study aims to leach copper from a low, grade flotation middling by and then leach manganese with sulfuric acid Leach Manganese With Sulfuric Acid. More information about leach manganese with sulfuric acid. 7 Jul 2013 which can be used for leaching Mn from all types of ores. how does sulfuric acid recovery of copper, stone crusher set Crushing Equipment. mpm crushing equipment is designed to achieve maximum productivity and high reduction ratio. From large primary jaw crusher Sulphuric acid, Harel Mallac Export Stepping Up Into Africa. Navigation. Home; About Us. Company History; Our Activities; Our Vision & Mission Copper Mineralogical Assay, Leach, Inc Leach
Views: 112 Puiow Quad
Making Sulfuric Acid 1930
 
00:33
Sulfuric acid (sulphuric acid in British English) is a strong mineral acid with the molecular formula H2SO4. It is soluble in water at all concentrations. Sulfuric acid has many applications, and is one of the top products of the chemical industry. World production in 2001 was 165 million tonnes, with an approximate value of US$8 billion. Principal uses include lead-acid batteries for cars and other vehicles, ore processing, fertilizer manufacturing, oil refining, wastewater processing, and chemical synthesis. In industrial use, although sulfuric acid is non-flammable, contact with metals in the event of a spillage can lead to the liberation of hydrogen gas. The dispersal of acid aerosols and gaseous sulfur dioxide is an additional hazard of fires involving sulfuric acid. Sulfuric acid is not considered toxic besides its obvious corrosive hazard, and the main occupational risks are skin contact leading to burns (see above) and the inhalation of aerosols. Exposure to aerosols at high concentrations leads to immediate and severe irritation of the eyes, respiratory tract and mucous membranes: this ceases rapidly after exposure, although there is a risk of subsequent pulmonary edema if tissue damage has been more severe. At lower concentrations, the most commonly reported symptom of chronic exposure to sulfuric acid aerosols is erosion of the teeth, found in virtually all studies. In the laboratory, the corrosive properties of sulfuric acid are accentuated by its highly exothermic reaction with water. Burns from sulfuric acid are potentially more serious than those of comparable strong acids (e.g. hydrochloric acid), as there is additional tissue damage due to dehydration and particularly secondary thermal damage due to the heat liberated by the reaction with water. The standard first aid treatment for acid spills on the skin is, as for other corrosive agents, irrigation with large quantities of water. Washing is continued for at least ten to fifteen minutes to cool the tissue surrounding the acid burn and to prevent secondary damage. Contaminated clothing is removed immediately and the underlying skin washed thoroughly. Preparation of the diluted acid can also be dangerous due to the heat released in the dilution process. The concentrated acid is always added to water and not the other way round, to take advantage of the relatively high heat capacity of water. Addition of water to concentrated sulfuric acid leads to the dispersal of a sulfuric acid aerosol or worse, an explosion. For more information on the workplace hazards of sulfuric acid, go to http://198.246.98.21/niosh/ipcsneng/neng0362.html . This is clipped from the 1930 US Bureau of Mines silent film, Sulphur. The Texas Gulf Sulphur Company assisted with the film. The entire film is available at the US National Archive.
Views: 8590 markdcatlin
San Francisco Pollution Liability: Coal Mining
 
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Although the usage of coal for electricity has gone down in recent years, coal mining still remains a valuable industry in the energy sector. Despite rising concerns about global warming in the U.S., large coal companies maintain that coal-fired power can be environmentally sustainable, and beneficial to the energy practices of Americans. Still though, coal mining comes with risks; with the environmental impact of the coal industry affecting land use, waste management, water, and air pollution. Atmospheric pollution is not the only type of pollution that raises concern; coal burning produces many solid waste products annually. These products include fly ash, bottom ash, flue-gas desulfurization sludge that contains mercury, among other chemicals, and more. According to environmental advocates, such as the writers for DeSmogBlog.com, research has found that a typical-sized coal-burning electricity plant in the U.S. puts out approximately 3.7 million tons of carbon dioxide, 10,000 tons of sulfur dioxide, 10,200 tons of nitrogen oxide, and more, per year. These sources say that a standard 500 megawatt coal-fired electrical plant burns about 1,430,000 tons of coal, uses 2.2 billion gallons of water, and uses 146,000 tons of limestone each year as well. Needless to say, owning and operating a coal mining company or any other type of energy production company comes with inherent risks. At DiNicola Insurance Services, we understand these risks; which is why we offer a comprehensive San Francisco Pollution Liability Program for business in the energy sector, as well as other various industries. Please contact us today for more information at (855) 247-1912. http://www.dinicolains.com/sf-pollution-liability-value-risks-coal-mining/
Views: 124 DiNicolaInsurance
ENG 4A03 - ALEX SOLOVYEV - THE DANGER OF PROGRESS TRAPS
 
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TED talk for Ethics and Sustainability in Engineering. Script: Hey everyone, I'm going to be doing my ted talk today about progress traps and the importance of learning from our mistakes as a society. So, a progress trap, from various definitions I found on the internet -- A progress trap is the human condition societies experience when, in pursuing progress through ingenuity, they inadvertently introduce problems they do not have the resources or political will to solve for fear of short term losses of status or quality of life or stability-- Basically, people see that there is something bad happening around them but they are unable to act accordingly and change anything about it. An example that I'm going to use is the nickel and copper and industry that emerged in Sudbury in the 1900s. When the transcontinental railroad was being build it was discovered that Sudbury is very rich in copper and nickel deposits. So naturally, there was business there; mining companies formed, lots of jobs were made. People were happy, people were working, everyone was making money and everything was all peachy. At that time they didn't realize the harm that the production of all these materials would cause to the environment. Nickel and sulfur metallurgical science; the production of it (nickel/copper) produces lots of sulfur dioxide (SO2). They were constantly creating sulfur and all this Sulfur dioxide is being released into the atmosphere. This reacts with Oxygen and water(vapor) and comes back down as acid rain (sulfuric acid) which is very harmful to for the ecological systems; the plant life, the aquatic life, fish, frogs. Everything starts to break down the more it happens. If you don't do anything about it, the acidity (of the acid rain) keep increasing then that's a progress trap; we see that we are destroying the land and yet we're not doing anything about it. My idea that would help to avoid something like this: instead of just releasing the sulfur into the atmosphere they should use that sulfur (dioxide) to create sulfuric acid(H2SO4), which is already a common process that is already done. They can use that (sulfuric acid) to make fertilizer which they can put back into the land which was once destroyed by the sulfuric acid (in the form of acid rain). That would be a way around the progress trap, a way to learn from our mistakes. Otherwise Sudbury could end up being a ghost town, its happened in very many places around the world. That's my thought on that, thanks for watching.
Views: 190 russianrawkit
Decapping ICs (removing epoxy packaging from chips to expose the dies)
 
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I thought it would be interesting to try decapping some chips. This involves using fuming nitric acid, which also seemed fun, so I thought I would give it a go. The process starts by milling a precise pocket into the IC using my CNC machine. I used carbide tooling to cut the glass fiber/epoxy material. I then put a drop or two of the acid into the pocket, and raised the temperature to about 100*C. The acid dissolves the epoxy packaging as it sort of "dries". I added more acid to the pocket every few minutes. After about 10 minutes, I washed the IC in acetone, then reapplied acid if there was still material left on the die. Eventually, it was all cleared away, and I had a nice decapped IC.
Views: 836892 Applied Science
Peru: Workers Fear Losing Jobs over Pollution
 
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Perus La Oroya is one of the ten most polluted places in the world. Contributing to this pollution is Doe Run Peru, a metal smelter plant which opened in 1922. The company is required to finish an environmental cleanup to reduce its smokestack emissions, but it is running out of time. And about 20,000 jobs are on the line. [Roberto Guzman, General Secretary, La Oroya's Metallurgical Workers' Union]: "Us workers are extremely worried, mainly about our families, our children because we've been enduring this chaotic problem for the past six months. We've been paralyzed since August 1." Union workers demand the government to extend the deadline by October so that they could save their jobs. They plan to block highways across central Peru starting on Monday (August 31) unless their requests are met. [Roberto Guzman, General Secretary, La Oroya's Metallurgical Workers' Union]: "If the government does not extend PAMA (an environmental cleanup program) this would automatically create social collapse at La Oroya. If smelting is not activated, you'll see operations at La Oroya grinding to a complete halt." Doe Run requested a thirty-month extension to build and pay for a sulfur dioxide capture system for its copper plant, or half that time if it gets a bank loan. To reopen, the company needs funding from its owner or a loan from a bank, yet neither would put up the money until the government extends the cleanup deadline. So far the government refused to grant an extension unless Doe Run guarantees it would finish the environmental cleanup by putting all its shares in an escrow account. Local residents are caught in the middle. [Monica Ayala, Resident]: "We don't want the plant to close, it should stay open, but we also don't want pollution." For miles around the plant, high levels of lead can be found about 4 inches into the topsoil. The locals and farm animals are exposed to it. The government is responsible for cleaning up the contamination that was already present before Doe Run bought the plant. But even after the plant finishes its cleanup, the hills of La Oroya will still be contaminated.
Views: 767 NTDTV
from lead ore saparated gold and silver plant
 
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How to Refine Precious Metals - Electrolysis: Hydrometallurgy Part 4
 
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This video shows the refining process steps using electrolysis of precious metals used by professional refining companies. Silver, Gold, Platinum, Palladium and the other platinum group metals. Electrowinning and electrorefining are presented. Part 4 will focus on the hydrometallurgical electrolysis processes. ipmi.org
Views: 106938 TheIPMI
Salt/Gold Trade- Hailee Porter
 
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I created this video with the YouTube Video Editor (https://www.youtube.com/editor)
Views: 23 HAILEE PORTER
QUANTITATIVE ANALYSIS
 
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For more information: http://www.7activestudio.com [email protected] http://www.7activemedical.com/ [email protected] http://www.sciencetuts.com/ [email protected] Contact: +91- 9700061777, 040-64501777 / 65864777 7 Active Technology Solutions Pvt.Ltd. is an educational 3D digital content provider for K-12. We also customise the content as per your requirement for companies platform providers colleges etc . 7 Active driving force "The Joy of Happy Learning" -- is what makes difference from other digital content providers. We consider Student needs, Lecturer needs and College needs in designing the 3D & 2D Animated Video Lectures. We are carrying a huge 3D Digital Library ready to use. QUANTITATIVE ANALYSIS:This analysis gives the percentage composition of elements present in an organic compound.A known mass of an organic compound is burnt in the presence of excess of oxygen and copper II oxide.Carbon and hydrogen in the compound are oxidised to carbon dioxide and water respectively. The mass of water produced is determined by passing the mixture through a weighed U-tube containing anhydrous calcium chloride. Carbon dioxide is absorbed in another U-tube containing concentrated solution of potassium hydroxide. These tubes are connected in series. The increase in masses of calcium chloride and potassium hydroxide gives the amounts ofwater and carbon dioxide from which the percentages of carbon and hydrogen are calculated.Let the mass of organic compound be m g, mass of water and carbon dioxide produced be m1 and m2 g respectively;Percentage of carbon=12x m2 x100/ 44 x m.Percentage of hydrogen = 2 x m1 x 100/ 18 x m. Nitrogen:There are two methods for estimation of nitrogen: 1. Dumas method and 2. Kjeldahl's method. 1. Dumas method:The nitrogen containing organic compound, when heated with copper oxide in an atmosphere of carbon dioxide, yields free nitrogen in addition to carbon dioxide and water.The mixture of gases so produced is collected over an aqueous solution of potassium hydroxide which absorbs carbon dioxide. Nitrogen is collected in the upper part of the graduated tube.Let the mass of organic compound = m g. Volume of nitrogen collected = V1 ml. Room temperature = T1K. Volume of nitrogen at STP= T1K. Volume of nitrogen at STP=p1 v1 x 273 / 760 x T1. Where p1and V1are the pressure and volume of nitrogen, value of p1 is obtained by the relation:p1= Atmospheric pressure - Aqueous tension. 22400 ml N2 at STP weighs 28 g Vml N2 at STP weighs =28 x V /22400 grams. Percentage of nitrogen =28 x 100/2240xM. 2. Kjeldahl's method:The compoundcontaining nitrogen is heated withconcentrated sulphuric acid. Nitrogen in thecompound gets converted to ammoniumsulphate. The resulting acidmixture is then heated with excess of sodium hydroxide.The amount of ammonia produced is determined by estimating the amount of sulphuric acid consumed in thereaction.It is done by estimating unreacted sulphuric acid left after the absorption of ammonia by titrating it with standard alkali solution. The difference between the initial amount of acid taken and that left after the reaction gives the amount of acid reacted with ammonia.Let the mass of organic compound taken = m g. Volume of H2SO4 of molarity, M,taken = V mL.Volume of NaOH of molarity, M, used for titration of excess of H2SO4 = V1 mL.V1mL of NaOH of molarity M = V1 /2 mL of H2SO4 of molarity M. Volume of H2SO4 of molarity M unused = V - V1/2mL.V- V1/2 mL of H2SO4 of molarity M = 2 V-V1/2 mL of NH3 solution of molarity M.
Views: 33641 7activestudio
Smelting and Gold Refining Part 1: Smelting sulfides and black sands to recover gold/silver
 
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This is a video showing one potential way to recover the gold and silver values from the sulfide and black sand concentrates that come off our shaker table. These concentrates still can have appreciable gold values even when the free gold has been removed. When the concentrates to be smelted do not contain a sufficiently high precious metal content (between 25%-50% precious metals) a collector metal must be used to draw the precious metals to the bottom of the conical mold to ensure the recovery of the gold and silver. I have been using copper as a collector metal due to its low cost and ease of refining after smelting. I will be very interested to hear from you all what you think of the video and if you have any suggestions or tip for future smelts for higher recovery. Links to helpful info: Sampling and Assaying Precious Metals: https://archive.org/stream/samplingandassa00smitgoog#page/n8/mode/2up A Textbook of Fire Assaying: https://archive.org/stream/textbookoffireas00bugbrich#page/n5/mode/2up Fire Assaying: https://archive.org/stream/fireassaying032695mbp#page/n5/mode/2up Info on Matte: http://www.coralsas.eu/DocsHtm/TContext05_Matte_Speiss.htm The Chemistry of gold extraction: https://books.google.com/books?id=OuoV-o_Xf-EC&pg=PA457&lpg=PA457&dq=smelting+with+sodium+nitrate&source=bl&ots=As2x-mwmta&sig=7fLTI2K9kx55Ju6ZI1LmXLSPc_A&hl=en&sa=X&ei=dRiGVa7UEJPdoATN2afQCw&ved=0CB8Q6AEwAA#v=onepage&q=smelting%20with%20sodium%20nitrate&f=false Iron and oxidizing flux: http://www.doiserbia.nb.rs/img/doi/1450-5339/2011/1450-53391100007T.pdf [email protected] 360-595-4445 http://www.mbmmllc.com/
Views: 36122 mbmmllc
Clean AER Project
 
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Diminishing the emission of sulphur dioxide and particulate matter into the atmosphere is directly linked to Vale's commitment to the world and the people who inhabit it. This is why the company invests in the Clean AER (Atmospheric Emissions Reduction) Project in Sudbury, Canada which aims to reduce sulphur dioxide emissions by 70%, which goes beyond the regulatory requirements established by the governments of Canada and the State of Ontario.
Views: 375 Vale Global
Where to find free carbon electrodes, zinc and manganese dioxide
 
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This video shows where to find free carbon electrodes, zinc and manganese dioxide
Views: 202 Wekon
Southern Pacific Railway Depot
 
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Built in 1915, the Southern Pacific Railway Depot was used extensively to ferry passengers and freight to the small sulfur mining community of Sulphur, Louisiana. The depot fell into disuse in the 1970's, and a group of local residents began efforts to preserve the building as a piece of history. In 1975, the Southern Pacific Transportation Company finally agreed to sell the building to the Sulphur Association of Commerce for one dollar, on the requirement that the building be moved away from the railroad tracks, due to safety issues. After funds were raised to move the building, arrangements were made with a local house-moving company to relocate the building near Frasch Park, just off of Picard Road. The two-mile move took 10 hours, and required the efforts of many in the community. After moving the building, next came the process of renovation. The building was cleaned, scraped, repaired, refinished, and repainted, just in time for its dedication ceremony, which took place on the nation's 200th birthday, July 4, 1976. It housed several different types of exhibits over the years, including a permanent exhibit on the history of the town, and is also the only museum in America to spotlight the Frasch mining process. It has been moved one other time in the history of the town, to its current location on 900 S. Huntington Street, across the street from the Sulphur Judicial Center. Moving to this location has resulted in a drastic increase in visitors.
Views: 375 SuperRailroads
Global Mining Finance Autumn 2011 - Rio Tinto
 
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Global Mining Finance Autumn 2011 Conference Speaker: Kevin Fox Sponsor: Rio Tinto Date: 21st September 2011 Location: London Chamber of Commerce & Industry
Views: 447 GlobalMiningFinance
Make Gold from Chloroauric Acid
 
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In this video we make gold by reduction of chloroauric acid with sodium metabisulfite. 4 grams of sodium metabisulfite is dissolved in 10mL of water. About 2mL of water is added to 2.6g chloroauric acid to dissolve it. Now the sodium metabisulfite is added in drop by drop. The sodium metabisulfite is reacts with the chloroauric acid to produce elemental gold, hydrochloric acid and sodium bisulfate. That brown precipitate you're seeing is actually the gold. It doesn't look like common gold because the particles of gold produced here are so small and rough that they don't reflect light in the way smooth bulk gold does. Just like how very fine sand is dull but glass is clear and shiny. The gold dust is filtered and washed with water and then melted down into gold nuggets.
Views: 1393120 NurdRage
How to Refine Precious Metals - Precipitation:   Hydrometallurgy Part 3
 
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This video shows the refining process steps using precipitation of precious metals used by professional refining companies. Silver, Gold, Platinum, Palladium and the other platinum group metals. Part 4 will focus on the hydrometallurgical electrolysis processes. ipmi.org
Views: 17886 TheIPMI
How To Get Gold - Introduction To Gold Mining And Gold Refining
 
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A producing gold mine showing how gold is mined, refined and taken out of the earth.
Most DANGEROUS Waters In The World!
 
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Check out the Most DANGEROUS Waters In The World! From mysterious lakes to the most polluted rivers, this top 10 list of bodies of water that wants to hurt you is something you should be aware of! Subscribe For New Videos! http://goo.gl/UIzLeB Watch our "REAL Mermaid Sightings Around The World!" video here: https://youtu.be/ChM0CBRmVsM Watch our "10 Sea Monsters ATTACKING A Boat!" video here: https://youtu.be/0XROvoPCDNc Watch our "STRANGEST Animals People Keep As Pets!" video here: https://youtu.be/OMa96nPqz-Y 11. Tualatin River, USA Oregon’s Tualatin River is not the place to be if you want to take your dogs for a swim; close to a dozen dogs die there every year from exposure to toxic blue-green algae. A deadly form of bacteria, this algae can grow fast, quickly polluting a body of water into a deceptively pretty shade of turquoise. Those unfortunate enough to swallow the stuff can expect sickness and diarrhea at best, paralysis at worst. 10. Rio Tinto, Spain You might look at this water and think that something isn’t quite right. Deep red water is strange and is usually not a good sign. Probably anyone will think that something is not right when a river has deep red water. Rio Tinto (or Red River) is a highly acidic river with a pH of 1.7 – 2.5. This means the Rio Tinto is as strong as stomach acid and is more than powerful enough to any fish that dare swim in it. 9. Lake Kivu, Africa Lake Kivu is a shared resource between Rwanda and the Democratic Republic of Congo. It sits on a rift valley that is slowly being pulled apart, causing volcanic activity around the area. However, 300 meters (1,000 ft) below the surface of Lake Kivu lies a ticking time. Over 250 cubic kilometers (60 cubic miles) of carbon dioxide, along with around 65 cubic kilometers (15 cubic miles) of methane gas, lurks under this body of water, enough to provide electricity to several countries. 8. Jacob’s Well, USA Jacob’s Well is known to be one of the world’s most dangerous diving spots. The well is near Cypress Creek,in Texas and descends 9.1 meters vertically. If you go straight down you will reach the first chamber. Go further down and at an angle and you’ll reach the second chamber which is 24 meters below the surface. 7. Blackwater River, USA Too much water can be a bad thing, even if the water itself can’t hurt you, the power of nature can. Just ask the folks around Blackwater River in Virginia, who have seen the waters rise and attack far more than usual these past few years. After close to 60 years of normalcy, the Blackwater River has overflowed and flooded nearby towns six times in the past 10 years. 6. Citarum River, Indonesia The Citarum River plays an important role in the life of the people of West Java, however it is not doing well. In fact, it is known as the most polluted river in the world. And it’s all human’s fault. The place is so filled with non-biodegradable waste and harmful chemicals that it’s practically toxic. 5. Potomac River, USA Just outside Washington D.C., the Potomac River Gorge is a 14-mile stretch that extends from the Key Bridge in the District of Columbia north to the Great Falls of the Potomac. The gorge is a popular site for outdoor activities like kayaking, boating, fishing, and hiking enthusiasts. 4. The Blue Lagoon, UK In Derbyshire, UK, there is a lake with a beautiful turqouise color but this is utterly deceptive. It turns out it was a former quarry that was flooded and filled with calcium oxide. The famous “Blue Lagoon” looks beautiful and became a popular swimming spot for locals even though warning signs already stated the dangers it possesses. 3. Boiling Lake, Dominica The Boiling Lake in Dominica is not a lake at all but actually a flooded fumarole, which is a hole in the Earth’s crust. Located in the Morne Trois Pitons National Park, it is the world’s second largest hot spring and looks like it took its hotness to an entirely new level. Discovered in 1870, the water temperature along its edges is 82 to 92 degrees Celsius (180 to 197 degrees Fahrenheit). 2. The Rivers of Johannesburg, South Africa Catching E. coli is no fun under normal circumstances; now imagine you were literally swimming in the stuff. That’s the reality around various rivers in Johannesburg, South Africa, where the amount of E. coli bacteria in the water goes way beyond acceptable levels. Some areas, like the nearby Cheetah Bridge, host 240 times more E. coli than what experts consider healthy. 1. Lake Karachay, Russia Located in the southern Ural Mountains in eastern Russia, Lake Karachay has been described as the most radioactive body of water in the world. It could also be considered the most polluted place on the planet. Origins Explained is the place to be to find all the answers to your questions, from mysterious events and unsolved mysteries to everything there is to know about the world and its amazing animals!
Views: 72711 Origins Explained
Jeff Wilson: Precipitate’s Discovery Hole and the Tireo Gold Trend
 
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Jeff Wilson, CEO of Precipitate Gold Corp., and guest host Gwen Preston, editor of Resource Maven, discuss the Tireo Gold Trend and Precipitate’s recent discovery hole. Mr. Wilson also provides an overview of Precipitate’s plans for 2015.
Mt Marion Overview
 
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Overview of operations at Mt Marion mine site.
Chemicals From Carbon-Zinc Batteries
 
06:58
Subscribe for future videos: http://bit.ly/AMchemistryYT Like my video? leave a like and a response. --------------------------------------------------------------------------------------------------------------------------------------- In today's video will be showing you where to find three useful chemicals for a lab. A zinc-carbon battery contains Zinc metal, Carbon electrode, and manganese dioxide. Zinc-carbon are fairly non-toxic but still use appropriate lab gear. --------------------------------------------------------------------------------------------------------------------------------------- Check out my Facebook and Twitter for updates and upcoming videos. Facebook: ~ http://on.fb.me/15x1Lex Twitter: ~ http://bit.ly/1CHHIrj Instagram for behind the scenes pictures. Instagram: ~ http://bit.ly/1utGEjH --------------------------------------------------------------------------------------------------------------------------------------- AMchemistry is all about making chemistry fun and educational for audiences of all ages. This channel ranges from kitchen chemistry to more advanced chemistry experiments. ``````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````` Want to become a Youtube Partner? Click the link below to check if your channel qualifies. Click here: http://awe.sm/s7i0J ```````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````
Views: 1834 AMchemistry
Thorium.
 
06:27:00
http://ThoriumRemix.com/ Thorium is an abundant material which can be transformed into massive quantities of energy. To do so efficiently requires a very different nuclear reactor than the kind we use today- Not one that uses solid fuel rods, but a reactor in which the fuel is kept in a liquid state. Not one that uses pressurized water as a coolant, but a reactor that uses chemically stable molten salts. Such a reactor is called a "Molten Salt Reactor". Many different configurations are possible. Some of these configurations can harness Thorium very efficiently. This video explores the attributes of Molten Salt Reactors. Why are they compelling? And why do many people (including myself) see them as the only economical way of fully harnessing ALL our nuclear fuels... including Thorium. This video has been under development since 2012. I hope it conveys to you why I personally find Molten Salt Reactors so compelling, as do the many volunteers and supporters who helped create it. Much of the footage was shot by volunteers. All music was created by: http://kilowattsmusic.com To support this project, please visit: https://patreon.com/thorium Entities pursuing Molten Salt Reactors are... Flibe Energy - http://flibe-energy.com/ Terrestrial Energy - http://terrestrialenergy.com/ Moltex Energy - http://www.moltexenergy.com/ ThorCon Power - http://thorconpower.com/ Transatomic - http://www.transatomicpower.com/ Seaborg - http://seaborg.co/ Copenhagen Atomics - http://www.copenhagenatomics.com/ TerraPower - http://terrapower.com/ Bhabha Atomic Research Centre - http://www.barc.gov.in/ Chinese Academy of Sciences - http://english.cas.cn/ Regular Thorium conferences are organized by: http://thoriumenergyalliance.com/ http://thoriumenergyworld.com/ Table of Contents 0:00:00 Space 0:17:29 Constraints 0:28:22 Coolants 0:40:15 MSRE 0:48:54 Earth 0:59:46 Thorium 1:22:03 LFTR 1:36:13 Revolution 1:44:58 Forward 1:58:11 ROEI 2:05:41 Beginning 2:08:36 History 2:38:59 Dowtherm 2:47:57 Salt 2:51:44 Pebbles 3:06:07 India 3:18:44 Caldicott 3:35:55 Fission 3:56:22 Spectrum 4:04:25 Chemistry 4:12:51 Turbine 4:22:27 Waste 4:40:15 Decommission 4:54:39 Candlelight 5:13:06 Facts 5:26:08 Future 5:55:39 Pitches 5:56:17 Terrestrial 6:08:33 ThorCon 6:11:45 Flibe 6:20:51 End 6:25:53 Credits Some of this footage is remixed from non-MSR related sources, to help explain the importance of energy for both space exploration and everyday life here on Earth. Most prominently... Pandora's Promise - https://youtu.be/bDw3ET3zqxk Dr. Neil DeGrasse Tyson - https://youtu.be/Pun76NZMjCk Dr. Robert Zubrin - https://youtu.be/EKQSijn9FBs Mars Underground - https://youtu.be/tcTZvNLL0-w Andy Weir & Adam Savage - https://youtu.be/5SemyzKgaUU Periodic Table Videos - https://youtube.com/channel/UCtESv1e7ntJaLJYKIO1FoYw
Views: 131965 gordonmcdowell
The Role of Coal in a New Energy Age
 
02:08:21
The Role of Coal in a New Energy Age - Select Committee on Energy Independence and Global Warming - 2010-04-14 - For the first time in recent memory, the CEOs of America's top two coal mining companies, and a leading international company, came to Capitol Hill to answer questions on their positions on climate change, clean energy policy, and the challenges that face their industry. "Just as our national energy policy is at a crossroads, so, too, is the coal industry," said Rep. Edward J. Markey, who chairs the Select Committee on Energy Independence and Global Warming, the committee that hosted the CEOs. "Whether it's climate science, the viability of 'clean coal,' or safety concerns, I believe Congress requires answers from the coal industry on their ability to be a part of our clean energy future." As Congress continues to push for a comprehensive clean energy and climate bill, questions remain regarding the coal industry's position on the essential science of climate change and their potential to provide cleaner, lower-carbon fuel in the decades to come. The House-passed Waxman-Markey bill offered a pathway for coal to transition to carbon capture and sequestration technologies. The coal mining industry has seen significant developments over the last two weeks. A mining accident in West Virginia has renewed questions about the safety of coal extraction, and the U.S. Environmental Protection Agency has offered new rules on the environmental and health impacts of mountaintop mining. TESTIMONY: Gregory Boyce, President and Chief Executive Officer, Peabody Energy Corporation; Steven F. Leer, Chairman and Chief Executive Officer, Arch Coal, Inc.; Preston Chiaro, Chief Executive for Energy and Minerals, Rio Tinto; Michael Carey, President, Ohio Coal Association. Video provided by the U.S. House of Representatives.
Views: 3209 HouseResourceOrg
Potassium Permanganate Colour Change (reaction only)
 
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Potassium Permanganate Colour Change - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=OLUyeCC-2Ko NOTE FROM THE PROFESSOR: The colour change is caused by the purple permanaganate ions [MnO4]- gaining electrons to form colourless Mn(+2) ions. The oxygen from the permanganate and the H2O2 are converted to H2O and O2 (which bubbles off). The extra H atoms come from the sulphuric acid H2SO4. Both the K and Mn end up as sulfates. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/
Views: 81657 Periodic Videos
GOLD - WikiVidi Documentary
 
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Gold is a chemical element with symbol Au and atomic number 79. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental form, as nuggets or grains, in rocks, in veins, and in alluvial deposits. It occurs in a solid solution series with the native element silver and also naturally alloyed with copper and palladium. Less commonly, it occurs in minerals as gold compounds, often with tellurium . Gold is thought to have been produced in supernova nucleosynthesis, from the collision of neutron stars, and to have been present in the dust from which the Solar System formed. Because the Earth was molten when it was formed, almost all of the gold present in the early Earth probably sank into the planetary core. Therefore, most of the gold that is in the Eart... http://www.wikividi.com ____________________________________ Shortcuts to chapters: 00:03:50: Characteristics 00:05:15: Color 00:06:53: Isotopes 00:08:36: Synthesis 00:10:58: Chemistry 00:15:03: Rare oxidation states 00:17:08: Occurrence 00:22:22: Seawater 00:24:09: History 00:31:41: Etymology 00:32:23: Culture 00:34:36: Mining and prospecting 00:38:24: Extraction and refining 00:39:56: Consumption 00:40:40: Pollution 00:42:56: Monetary use 00:49:01: Price 00:50:03: History 00:54:29: Jewelry 00:56:31: Electronics 00:59:30: Medicine ____________________________________ Copyright WikiVidi. Licensed under Creative Commons. Wikipedia link: https://en.wikipedia.org/wiki/Gold
Cement mill iron ore requirement
 
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Now chatting: http://www.leawaysschool.com/solution.html Contact Us: http://www.leawaysschool.com cement sand and iron ore testing in nigeria CEMENT MILL ANIMATION WITH HRC; Iron ore mill in job in nigeria cement plant for ccr operator in . pakistani requirement cement industry ccr kiln cement sand and requirement quartz ore in italy cement mill iron ore requirement coal vertical mill machinaries required for iron ore mining flow chart cement mills machinery; first company of iron ore requirement for cement - ww18.psui.cn/Cheap What is cement and how is it: Cheap Industrial Minerals,Wholesale Manganese Ore,Iron Ore cement mill hopper iron ore requirement for cement Home 187; processing 187; cement mill iron ore requirement . cement mill iron ore requirement. cement mill iron ore requirement Description : Get Price. iron ore cement mill limestone and iron ore cement mill limestone and iron ore cement clay ,iron ore,lime stone storage area - Rocks Process cement mill iron ore requirement Iron Ore: Limestone cement mill iron ore requirement India Bill Mill. artificial sand making machines coimbatore; rock crushing machines sales usa; mini cement grinder plant; batch ball and rod mills and batch drive cement mill iron ore requirement Ore crusher,stone crusher ,grinder mill,mobile crusher We are ore crusher,stone crusher, grinding mill5 crusher, mobile crusher,powder TFXS002, gravel crusher,gold coal vertical mill hot air temperature,water requirement for iron ore processing 锘縞oal vertical mill hot air temperature,water requirement for iron ore processing cement mill notebook pitcairn islands Iron Ore Fines; Raw Iron Ore; Maganese Ore; Mill We are in a position to supply you Ordinary Portland Cement (OPC) as per your requirement which (Cement Mill requirement of machinery of crushing of iron ore Cement Mill; Raw Mill; Coal Mill; MQ Series Ball Mill; requirement of machinery of crushing of iron ore; requirement for as a plant maintenance machine cement; small cement mill requirement - Gold Ore Crusher Beneficiation of Iron Ore; Separating Gold, Lead Ore; Gold ore washing machine; Chrome ore beneficiation plant; Posts Related to small cement mill requirement. cement mill iron ore requirement ,Raymond Mody bauxite and iron ore sources for ambuja cement鈥?Rock bauxite and iron ore sources for ambuja cement iron ore sources for ambuja cement鈥?Rock Crusher Mill cement mill limestone and iron ore cement mill iron ore requirement. cement mill iron ore requirement Description : Iron ore,Wikipedia, Cement Mill. High grade limestone. Raw Mill. tumble mill tumble drum mill for iron ore are these the same - SCMMining tumble mill tumble drum mill for iron ore are these the same. iron ore requirement for cement (* denotes a required field) indonesia requirement for calcite ore Iron Ore Mines In Malaysia Suppliers Iron Ore Mining Service. Customers looking for requirement of iron ore ball mill size and motor power requirements water requirement for iron ore processing customer requirement of copper ore. The largest customer for coal was China, accounting for over 82% of all . the large water requirements (requirement for the new how to cement silver ore cement clay , iron ore , lime stone SCM is one of the biggest manufacturers in Aggregate Processing Machinery for the cement mill limestone and iron ore, sand cement mill limestone and iron ore taiwan - rocks machine (CaCO3) mixed Some of the second raw materials used are: clay, shale, sand, iron ore, bauxite, . A 10 MW cement mill, producing cement at 270 tonnes per hour water requirement for iron ore processing iron ore requirement for cement. cement mill iron ore requirement. Related Posts. welding machine grinding cement mill; gypsum requirements in cement industry; video requirements of a cement mill cement mill iron ore requirement. about more cement mill iron ore requirement chat online. cement grinding millbauxite, manganese ore, iron ore, copper, rock . Quote cement sand and iron ore testing in nigeria Iron Ore Requirement For Cement - Coal Crusher Manufacturer. cement grinding mill for sale; automatic production line of artificial stone; price of nakayama stone
Views: 19 Chapman Longman
Iron-process iron ore distribution in world notes
 
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SGS:http://www.gyratorycrusher.com/quarry/quarry/iron-crusher.html Iron Ore - Mineral Fact Sheets:http://www.gyratorycrusher.com/quarry/quarry/iron-crusher.html Blast furnace:http://www.gyratorycrusher.com/quarry/quarry/iron-crusher.html Smelting:http://www.gyratorycrusher.com/quarry/quarry/iron-crusher.html In a blast furnace, fuel, ore, and flux (limestone) are continuously supplied through the top of the furnace, while air (sometimes with oxygen enrichment) is blown into the lower section of the furnace, so that the chemical reactions take place throughout the furnace as the material moves downward. The end products are usually molten metal and slag phases tapped from the bottom, and flue gases exiting from the top of the furnace. The downward flow of the ore and flux in contact with an upflow of hot, carbon monoxide-richbustion gases is a countercurrent exchange process. This is a great increase from the typical 18th-century furnaces, which averaged about 360 tonnes (400 short tons) per year. Variations of the blast furnace, such as the Swedish electric blast furnace, have been developed in countries which have no native coal resources. Tin was much lessmon than lead and is only marginally harder, and had even less impact by itself. Sintering is a process used to agglomerate iron ore fines in preparation for blast-furnace smelting, and is usually carried out at iron and steelmaking centres. It involves the incorporation of crushed limestone, coke and other additives available from iron and steelmaking operations. These additives include wastes extracted from furnace exhaust gases, scale produced during rolling mill operations, and coke fines produced during coke screening. Blast furnaces differ from bloomeries and reverberatory furnaces in that in latter, flue gas is in intimate contact with the iron, allowing carbon dioxide to dissolve in the iron, which lowers the melting point and changes the iron into pig iron. The intimate contact of flue gas with the iron causes contamination with sulfur if it is present in the fuel. Historically, to prevent contamination from sulfur, the best quality iron was produced with charcoal. After tin and lead, the
Views: 238 Ishara Jessie
DMC Lecture: Finding Useful Minerals and Mining on Mars
 
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Del Mar College Natural Science Lecture with W. Vernon Kramer. Finding Useful Mineral and Mining on Mars Isn't Easy. Recorded February 15, 2008
Views: 74 Del Mar College
Lets Play Factorio S3E106 - Lithium Cobalt Oxide and Lithium Perchlorate
 
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This extensive campaign (100+ episodes) brings increased complexity by combining all of Bob's Mods with all of Angel's Mods. Join and learn with me the interactions between the many complex mods as we figure out the intricate formulas to make it come together to escape the planet. Gameplay mods: Angel's Mods (Refining, Processing, Ores and Petrochemicals) Bob's Mods (Inserters, Assembling machines, Electronics, Enemies, Greenhouse, Logistics, Plates, Mining, Modules, Ores, Power, Tech and Warfare) Uranium Power Resource Spawner Overhaul Quality of life mods: Autofill Bottleneck EvenMoreLight EvoGUI Factorio Reach Time Tools Tree Collision Yet Another Resource Monitor fork
Views: 156 Nilaus
"NASA" - THORIUM REMIX 2016
 
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Thorium is an abundant material which can be transformed into massive quantities of energy. To do so efficiently, requires a very different nuclear reactor than the kind we use today- Not one that uses solid fuel rods, but a reactor in which the fuel is kept in a liquid state. Not one that uses pressurized water as a coolant, but a reactor that uses chemically stable molten salts. Such a reactor is called a "Molten Salt Reactor". Many different configurations are possible. Some of these configurations can harness Thorium very efficiently. If you have ever heard the word THORIUM before now, that is because NASA paid $10,000 to have MSR research documents scanned. NASA needs power for space missions, but current nuclear reactors are ill-suited for off-world application. This video explores the attributes of Molten Salt Reactors. Why are they compelling? And why do many people (including myself) see them as the only economical way of fully harnessing ALL our nuclear fuels... including Thorium. THORIUM REMIX 2016 has been under development since 2012. I hope it conveys to you why I personally find Molten Salt Reactors so compelling, as do the many volunteers and supporters who helped create this video. Much of the footage was shot by volunteers. Entities pursuing Molten Salt Reactors are... Flibe Energy - http://flibe-energy.com/ Terrestrial Energy - http://terrestrialenergy.com/ Moltex Energy - http://www.moltexenergy.com/ ThorCon Power - http://thorconpower.com/ Transatomic - http://www.transatomicpower.com/ Seaborg - http://seaborg.co/ Copenhagen Atomics - http://www.copenhagenatomics.com/ TerraPower - http://terrapower.com/ Bhabha Atomic Research Centre - http://www.barc.gov.in/ Chinese Academy of Sciences - http://english.cas.cn/ Regular Thorium conferences are organized by: http://thoriumenergyalliance.com/ http://thoriumenergyworld.com/ Some of this footage is remixed from non-MSR related sources, to help explain the importance of energy for both space exploration and everyday life here on Earth. Most prominently... Pandora's Promise - https://youtu.be/bDw3ET3zqxk Dr. Neil DeGrasse Tyson - https://youtu.be/Pun76NZMjCk Stephen Colbert - https://youtu.be/6jXazEYi3P8 Dr. Robert Zubrin - https://youtu.be/EKQSijn9FBs Mars Underground - https://youtu.be/tcTZvNLL0-w Andy Weir & Adam Savage - https://youtu.be/5SemyzKgaUU Periodic Table Videos - https://www.youtube.com/channel/UCtESv1e7ntJaLJYKIO1FoYw ...to see when & where ALL remix components have been used, watch this video using a computer and enable "YouTube Annotations". Citations will appear on-screen during playback. All music was created by: http://kilowattsmusic.com To support this project, please visit: https://patreon.com/thorium
Views: 242534 gordonmcdowell
Nuclear Power - Dr. Helen Caldicott - Visions of the Future
 
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Dr. Helen Caldicott's statements on nuclear power are contrasted with a vision of abundant energy, exploration, and realized human potential. Music by KiloWatts: http://kilowattsmusic.com The world's most prolific anti-nuclear activist, Dr. Helen Caldicott has been featured many times by mainstream media and has testified before government panels on the subject of radiation. However, she has made many false statements. Repeatedly. Music created by KiloWatts: https://soundcloud.com/kilowatts Edited by Gordon McDowell: https://www.patreon.com/thorium Features video clips from Pandora's Promise: https://itunes.apple.com/us/movie/pandoras-promise/id675188533 Useful timecodes: 0:03:50 AP1000 (introduced) 0:04:10 Dr. Helen Caldicott (introduced) 0:07:39 Caldicott does not want China to modernize. 0:09:08 China's uses energy to create goods we buy. 0:10:52 Unleash human potential. 0:14:37 Energy for efficient resource mining (copper). 0:15:18 Energy for efficient resource recycling (steel). 0:17:37 Tyson on golden era NASA exploration. 0:20:08 Caldicott for candlelight. Candles for light. 0:20:34 Dr. James Hansen on energy & safety. 0:21:43 Caldicott cites Hansen. Hansen disagrees. 0:23:10 Tyson: Advancing a field attracts smart. 0:24:07 GM EV1 - Revolution needed. 0:25:50 Start Nuclear 101. Atoms. Fission. 0:29:34 Radiation. Geothermal. 0:34:50 Isotopes. 0:38:21 Chain reaction. 0:40:52 Uranium - Finite or renewable? 0:43:26 Nuclear waste. Fission products. Recycle. 0:50:03 Caldicott - We are not God. 0:51:43 Caldicott fearmonger spent fuel. 0:53:14 Ben Heard - Cask storage. Recycle fuel. 0:55:44 Coal ash. A legitimate waste concern. 0:58:40 Deliberately constraining energy supply. 1:05:22 Recognize limitations of solar & wind. 1:07:05 Germany burning biomass. 1:09:00 Nuclear replaced by combustion. 1:13:03 Caldicott's Global Preventive Medicine. 1:14:01 George Monbiot debates Caldicott. 1:15:07 Caldicott against energy use, lifestyle. 1:17:05 Caldicott's candles vs Penn and Teller. 1:20:22 Accustomed to uncompetitive nuclear. 1:21:08 Caldicott cites Russian Study. 1:21:47 Monbiot calls out Caldicott untruths. 1:23:26 Caldicott on nuclear = testosterone. 1:24:45 Caldicott on nuclear causing cancer. 1:31:31 Robert Stone - Facts unpersuasive. 1:33:26 President Kennedy to Moon. Lesson. 1:39:47 Aspiration vision/message needed. 1:42:03 Energy ideas the media notices. 1:45:17 Turning seawater into liquid fuels. 1:49:07 Energy as a byproduct. Trek future. 1:52:01 Energy is peace. 1:53:28 Energy to explore. Nuclear required. 2:01:26 Earth Panel. Challenges of solar. 2:03:14 Titan mission. 10 years vs 1 hour. 2:05:31 Nuclear beyond solar system. 2:08:10 Comet probe lands in shadow. 2:10:05 Elon Musk vs launch constraint. 2:13:31 Martian photosynthesis food. 2:15:36 Elon Musk. Mars solar & nuclear. 2:16:05 Europa. Tyson. James Cameron. 2:18:55 Back on Earth. 2:20:16 Clean energy cheap. Not sci-fi. 2:21:30 Shellenberger. Save nature. 2:32:25 People changing their minds. 2:33:28 Nuclear Industry. 2:36:21 Industry communications. 2:38:20 PWR status quo. 2:39:29 Advanced Reactors. Thorium. 2:41:08 People changing their minds. 2:43:12 Call to action for engineers. This video is a byproduct of THORIUM REMIX 2016: http://thoriumremix.com/
Views: 1964 Gordon McDowell
Glencore
 
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Glencore plc is an Anglo–Swiss multinational commodity trading and mining company headquartered in Baar, Switzerland and with its registered office in Saint Helier, Jersey. The company was created through a merger of Glencore with Xstrata on 2 May 2013. As of 2014, it ranked tenth in the Fortune Global 500 list of the world's largest companies. As Glencore International, the company was already one of the world's leading integrated producers and marketers of commodities. It was the largest company in Switzerland and the world's largest commodities trading company, with a 2010 global market share of 60 percent in the internationally tradeable zinc market, 50 percent in the internationally tradeable copper market, 9 percent in the internationally tradeable grain market and 3 percent in the internationally tradeable oil market. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 1523 Audiopedia
Palladium
 
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Palladium is a chemical element with the chemical symbol Pd and an atomic number of 46. It is a rare and lustrous silvery-white metal discovered in 1803 by William Hyde Wollaston. He named it after the asteroid Pallas, which was itself named after the epithet of the Greek goddess Athena, acquired by her when she slew Pallas. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). These have similar chemical properties, but palladium has the lowest melting point and is the least dense of them. Over half of the supply of palladium and its congener platinum goes into catalytic converters, which convert up to 90% of harmful gases from auto exhaust (hydrocarbons, carbon monoxide, and nitrogen dioxide) into less-harmful substances (nitrogen, carbon dioxide and water vapor). Palladium is also used in electronics, dentistry, medicine, hydrogen purification, chemical applications, groundwater treatment and jewelry. Palladium plays a key role in the technology used for fuel cells, which combine hydrogen and oxygen to produce electricity, heat, and water. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Views: 2691 Audiopedia
My Name Is Molybdenum Disulphide - #42 And #16 A Match Made In...
 
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Wow this stuff is slippery!
Views: 5920 capricemontie
ReaxFF Tutorial 1: easy set up and analysis of reactive molecular dynamics with GUI
 
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Tutorial on using the GUI to set up and analyze a ReaxFF calculation: http://www.scm.com/ReaxFF. In this example, the combustion of methane in oxygen is modeled. To get a free trial for the ADF computational package, including ReaxFF: http://www.scm.com/trial
PIELC 2014: The False Solutions of Green Energy - Wilbert & Foley
 
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Max Wilbert & Cameron Foley expose the fallacies of "green" technology by tracing the process of industrial production for these technologies and exposing the destruction they cause. Powerpoint slides: https://dl.dropboxusercontent.com/u/123254/Long%20Term%20Shares/PIELC%20Talk.pdf
Views: 5581 Deep Green Resistance

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