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US08388726B2 Processing copper sulfide ores 有权
加工硫化铜矿石

Processing copper sulfide ores
摘要:
Copper is chemically extracted from crude ores by first roasting it at temperature up to 500° C. for 90 minutes, then treating it with ammonium salt followed by leaching with sulfuric acid to obtain a soluble copper mass for further purification.
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