Process for metal recovery by solvent extraction from...

Details Process for metal recovery by solvent extraction from... Process for metal recovery by solvent extraction from...

C - Chemistry, Metallurgy

22

B

53/375

C22B 3/00 (2006.01) B01D 11/04 (2006.01) C01G 51/00 (2006.01) C22B 3/38 (2006.01)

Patent

CA 1227339

ABSTRACT A multistage countercurrent solvent extraction process for removing cobalt from an aqueous sulfate solutions containing saturation amounts of calcium using an organic soluble phosphinic acid as the extractant preferably characterized by control of pH in various stages of the process to minimize scaling of gypsum in the extraction equipment.

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