C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/292, 53/309
C22B 15/00 (2006.01) C01G 3/00 (2006.01) C01G 9/00 (2006.01) C01G 53/00 (2006.01) C22B 19/00 (2006.01)
Patent
CA 1089653
ABSTRACT OF THE DISCLOSURE A process for separately recovering nickel and cobalt from solution includes adjusting the pH of the solu- tion to a value between about 3 and about 6, and then con- tacting the solution with a chelating ion exchange resin having amminocarboxylic acid functional groups to selectively load nickel onto the resin to produce a nickel loaded resin and a nickel depleted cobalt containing solution. The pH of the nickel depleted cobalt containing solution is adjusted to a value between about 7 and about 10 and then contacted with further ion exchange resin to produce a cobaltous cobalt loaded resin. The process is also applicable to the separate recovery of copper and zinc from solution.
272687
Kofluk Russell P.
Sefton Verner B.
A. J. Fors & Associates
Sherritt International Consultants Inc.
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