Process of producing metallic foil by electrolysis

Details Process of producing metallic foil by electrolysis Process of producing metallic foil by electrolysis

1993-11-12

1995-04-18

Nieling, John

Electrolysis: processes, compositions used therein, and methods

Electroforming or composition therefor

Sheet, web, wire, or filament

205 76, 205239, 205292, C25D 104

Patent

active

054075564

ABSTRACT:
A process of producing a metallic foil by electrolysis by depositing the metallic foil on a cathode by electrolysis from a sulfuric acid acidic solution is disclosed, which comprises using an electrode having a coating of an electrode active material containing a platinum group metal oxide as an anode and carrying out the electrolysis in an electrolyte containing from 1 to 20 ppm of a lead component when a fluorine component does not exist in the electrolyte or an electrolyte containing from 0.2 to 1 ppm of a fluorine component and from 0.1 to 20 ppm of a lead component when a fluorine component exists in the electrolyte. The life of the electrode can be prolonged and a metallic foil can be stably produced by electrolysis for a long period of time by preventing the lead component(s) derived from the raw material from mixing into the metallic foil.

REFERENCES:
patent: 3880728 (1975-04-01), Habermann et al.
patent: 4437948 (1984-03-01), Okinaka et al.
patent: 4913973 (1990-04-01), Geusic
Patent Abstracts of Japan, vol. 11, No. 184, Jun. 12, 1987.

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