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Extraction of precious metals from ores and other precious metal containing materials using halogen salts
Extraction of precious metals from ores and other precious metal containing materials using halogen salts
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机译:使用卤素盐从矿石和其他含贵金属的材料中提取贵金属
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摘要
Platinum group metals, gold and silver are extracted from complex ores, automobile scrap, refractory ores and as naturally occurring by leaching the precious metal containing materials with a solution containing halogen salts such as potassium or sodium iodide and bromide in the presence of ammonium ions and oxygen. The precious metal containing materials and reactants are charged into a reaction zone held at high temperatures and pressures to form a slurry containing a precious metal ion solution. The precious metal ion solution is separated from the slurry and subjected to recovering techniques to recover the precious metals.
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