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Laterite nickel / cobalt ore hydrometallurgy process, nickel and / or cobalt intermediate concentrate production method, or product using the same
Laterite nickel / cobalt ore hydrometallurgy process, nickel and / or cobalt intermediate concentrate production method, or product using the same
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机译:红土镍/钴矿石湿法冶金工艺,镍和/或钴中间精矿的生产方法,或使用该方法的产品
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摘要
Process for the treatment of a lateritic nickel/cobalt ore consisting of a mixture (2) of limonite and saprolite, characterized in that: the mixture (2) in the presence of an iron-precipitating agent is made into a pulp (1), having a solids content of between 10 and 40% by weight; the pulp undergoes a leaching operation (4) with sulphuric acid (5), at a temperature between 70° C. and the boiling point and at atmospheric pressure; and a solid-liquid separation (8) is carried out so as to obtain an iron-containing solid residue (9) and a solution containing nickel and cobalt ions. Process for producing nickel and/or cobalt intermediate concentrates or commercial products using the above process.
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