Anode-assisted cation reduction

Details Anode-assisted cation reduction Anode-assisted cation reduction

C - Chemistry, Metallurgy

25

C

204/66, 204/78.3

C25C 1/00 (2006.01) C25B 1/00 (2006.01) C25B 1/02 (2006.01)

Patent

CA 1152937

ABSTRACT OF THE DISCLOSURE A method of cation reduction by anode-assisted electrolysis comprises electrolysing cations in a cathode compartment of a cell in which the anode compartment contains ferrous ion as a reducing agent, with relative motion between the anode and the anolyte so as to promote contact of the anode with ferrous ion despite their mutual electrostatic repulsion, wherein the concentra- tion of the ferrous ion is from 1/2 to 10 g/l. The relative motion can take the form of air-sparging. The method can be used to produce copper metal from copper solution.

373097

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