To provide a recovery method for obtaining electrolytic cobalt by removing copper from an acid solution essentially consisting of copper which comprises a trace amount of cobalt.
A recovery method for cobalt, wherein copper is removed from an 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 an 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 10 g/L of copper and less or equal to 5 g/L of cobalt, (2) the cationic exchange extracting agent is an oxime series extracting agent, and (3) the cationic exchange resin is an acid chelate resin.
ABE YOSHIFUMI
HATANO KAZUHIRO
HOSAKA KOJI
