Electrowinning of metals

Details Electrowinning of metals Electrowinning of metals

C - Chemistry, Metallurgy

25

C

204/192, 204/66

C25C 1/00 (2006.01) C25C 7/02 (2006.01)

Patent

CA 1120423

Abstract of the Disclosure The invention disclosed is an improved process for the electrowinning of metals, particulary copper and zinc, from an acid solution of a sulphate of the metal in the presence of SO2, the improvement comprising introducing SO2 adjacent the anode/electrolyte interface at an appropriate rate. A novel porous electrode construction for use in the process is also described, includ- ing a hollow core through which SO2 may be sparged to provide SO2 at the electrode/electrolyte interface.

338693

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