Recovery method for cobalt

Details Recovery method for cobalt Recovery method for cobalt

C - Chemistry, Metallurgy

25

C

C25C 1/08 (2006.01) C22B 3/24 (2006.01) C22B 3/26 (2006.01) C22B 3/42 (2006.01) C22B 23/00 (2006.01)

Patent

CA 2732486

A recovery method for cobalt, wherein copper is removed from acid aqueous solution in which copper and cobalt are contained and concentration rate of Cu/Co is more or equal to 5, by a combination of a solvent extraction using cationic exchange extracting agent and a adsorption using cationic exchange resin, and then cobalt is recovered as electrolytic cobalt by a combination of a solvent extraction and an electrowinning, and (1) the acid aqueous solution contains more or equal to 10g/L of copper and less or equal to 5g/L of cobalt, (2) the cationic exchange extracting agent is an oxime series extract agent, and (3) the cationic exchange resin is an acid chelate resin.

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