Cathode plate for electro winning and refining

Details Cathode plate for electro winning and refining Cathode plate for electro winning and refining

C - Chemistry, Metallurgy

25

C

C25C 7/02 (2006.01) C25C 1/00 (2006.01) C25C 1/12 (2006.01) C25C 1/16 (2006.01)

Patent

CA 2328042

A cathode plate particularly adapted for zinc and copper electro-winning and refining includes a panel of aluminum having a top and two opposed side edges, a sloped plastic shield along the top and plastic ribbons along the side. A head bar with two hooks is welded on the top of the plate. The top plastic molding and the side edge ribbons are manufactured simultaneously by a specially devised injection machine. When the cathode plates are immersed into the electrolyte, the top plastic shield keeps the zinc deposit level uniform and prevents the top portion and the liquid contact area of cathode plates from corrosion by acid mist generated during electrochemical reactions. The sloped lower part of top plastic shield facilitates inserting a stripping knife between the zinc deposit and the cathode plate.

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