Electrowinning of metals

Details Electrowinning of metals Electrowinning of metals

C - Chemistry, Metallurgy

25

C

204/43.45, 204/1

C25C 1/08 (2006.01) C25C 1/00 (2006.01) C25C 7/00 (2006.01)

Patent

CA 1055883

ABSTRACT An electrolytic process and electrochemical cell for the electrodeposition of a metal from an aqueous solution of a salt of said metal is disclosed. A separator which has an anion exchange membrane which is substantially impermeable to cations is disposed between the anode and cathode of an electrochemical cell to form separate anode and cathode compartments within said cell, and a particulate cathode is established within the cathode compartment. The aqueous solution of a salt of the metal is flowed into the cathode compartment, and a potential difference is imposed across the anode and cathode of said cell sufficient to electrodeposit metal from said aqueous solution on to the particulate cathode, anions passing through said anion exchange membrane into the anode compartment.

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