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Extraction of valuable nickel and cobalt fractions from flotation enrichment concentrates from sulfide ore using chloride-based oxidative pressure leaching in sulfuric acid
Extraction of valuable nickel and cobalt fractions from flotation enrichment concentrates from sulfide ore using chloride-based oxidative pressure leaching in sulfuric acid
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机译:使用硫酸中基于氯化物的氧化加压浸提法从硫化矿石中的浮选富集精矿中提取有价值的镍和钴馏分
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摘要
A hydrometallurgical process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate. The process involves forming a slurry of the sulfidic flotation concentrate in an acid solution, and subjecting the slurried flotation concentrate to a chlorine leach at atmospheric pressure followed by an oxidative pressure leach. After liquid-solids separation and purification of the concentrate resulting in the removal of copper and cobalt, the nickel-containing solution is directly treated by electrowinning to recover nickel cathode therefrom.
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