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PRESSURE LEACHING OF NICKEL AND COBALT SULPHIDES WITH CHLORINE UNDER CONTROLLED REDOX POTENTIAL CONDITIONS
PRESSURE LEACHING OF NICKEL AND COBALT SULPHIDES WITH CHLORINE UNDER CONTROLLED REDOX POTENTIAL CONDITIONS
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机译:在受控氧化还原电位条件下用氯加压浸提镍和钴硫化物
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摘要
A method of pressure leaching nickel and cobalt fromsulphidic precipitates is provided, wherein suchprecipitates are leached with chlorine at a controlledredox potential of between 400 and 550 mV (Ag/AgCl),catalysed by copper, and at a temperature of between 120and 160°C, to dissolve at least 80% of cobalt and tooxidize less than 10% of sulphur to sulphate.
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