Why is sulfide mining bad Mining sulfide rock releases acid and toxic metals and contaminants that pollute rivers and groundwater for hundreds of years long after the profits are spent and the products buried in landfills Sulfide ores contain metals such as copper or nickel that are bonded to sulfur forming sulfide minerals
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Get PriceNumerous stibnite deposits occur in Idaho Montana and Nevada How do you get antimony Antimony is not an abundant element but is found in small quantities in over 100 mineral species It is most often found as antimony III sulfide It is extracted by roasting the antimony III sulfide to the oxide and then reducing with carbon
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Get PriceKinetics of stibnite Sb2S3 oxidation at Experimental work on the oxidation of stibnite Sb2S3 was carried out at temperatures between 350 concentrates include roasting processes and leaching
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Get PriceThe industrial methods for refining antimony are roasting and reduction with carbon or direct reduction of stibnite with iron The ancient Egyptians used antimony in the form of stibnite for black eye make up Antimony in the environment Higher levels of antimony may be found near waste sites or industries that process or release it
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Get PriceExperimental work on the oxidation of stibnite Sb2S3 was carried out at temperatures between 350 and 500°C and oxygen partial pressures between and kPa by using a thermogravimetric analysis method The oxidation rate of stibnite was significantly influenced by both temperature and partial pressure of oxygen Stibnite oxidized in one step to valentinite Sb2O3 and neither
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Get PriceThe leading antimony mineral is stibnite In smelting stibnite ore two processes are available precipitation and roasting reduction The former is suited only for high grade ores As low grade ores are more common than high grade roasting reduction is of greater importance than precipitation
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Get Priceroasting iron from antimony ore roasting iron from antimony ore Antimony trioxide is tyically produced by roasting stibnite 250 years earlier4 The process involved roasting stibnite
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