Recovery of nickel and cobalt from leach slurries

Details Recovery of nickel and cobalt from leach slurries Recovery of nickel and cobalt from leach slurries

C - Chemistry, Metallurgy

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C01G 53/11 (2006.01) B01J 19/00 (2006.01) B03D 1/001 (2006.01) B03D 1/02 (2006.01) C01G 51/00 (2006.01)

Patent

CA 1116412

ABSTRACT OF THE DISCLOSURE A slurry, such as might be obtained from acid leaching nickeliferous ores having a high iron content, is treated to separate dissolved nickel or cobalt from iron oxide solids. The treatment involves a controlled precipitation of the non- ferrous metal with the aid of calcium sulfide or barium sul- fide followed by floatation to recover a high grade concentrate of the non-ferrous metal.

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