Process for the solvent extraction of nickel and cobalt...

Details Process for the solvent extraction of nickel and cobalt... Process for the solvent extraction of nickel and cobalt...

C - Chemistry, Metallurgy

22

B

C22B 23/00 (2006.01) C22B 3/04 (2006.01) C22B 3/14 (2006.01) C22B 3/26 (2006.01)

Patent

CA 2356050

A process for the extraction of nickel and/or cobalt values from a solution comprises the steps of effecting a cobalt solvent extraction in the presence of magnesium ions with a cobalt extractant to produce a cobalt extractant loaded with cobalt ions and a first raffinate containing nickel and magnesium ions in solution. The first raffinate is subjected to magnesium solvent extraction with a magnesium extractant to produce a magnesium extractant loaded with magnesium and cobalt ions and a second raffinate. The second raffinate is subjected to nickel solvent extraction with a nickel extractant to produce a nickel loaded extractant and a third raffinate.

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