An electrochemical cell and process for reducing the amount...

Details An electrochemical cell and process for reducing the amount... An electrochemical cell and process for reducing the amount...

C - Chemistry, Metallurgy

25

D

C25D 17/00 (2006.01) C25D 21/00 (2006.01)

Patent

CA 2329553

The invention disclosed relates to an electrochemical process for decreasing high levels of organic contaminants in metal plating baths. The process involves breaking down the organic contaminants in an electrochemical cell by electrochemical oxidation. The electrochemical cell includes an anode comprising an active material which is stable at low (acid) pH and at the high electrical potential required to break down the organic contaminants by oxidation. Typical examples of such anodes include a valve metal substrate coated with doped tin dioxide, lead dioxide, or platinum-based materials, the latter in some instances being coated on a high surface area valve metal substrate.

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