Molten salt stripping of electrode coatings

Details Molten salt stripping of electrode coatings Molten salt stripping of electrode coatings

C - Chemistry, Metallurgy

23

G

149/15

C23G 1/34 (2006.01) C23G 1/32 (2006.01) C25B 11/00 (2006.01)

Patent

CA 2031454

MOLTEN SALT STRIPPING OF ELECTRODE COATINGS Abstract of the Disclosure A method is now utilized for stripping costly electrocatalytic coatings from valve metal substrates while maintaining excellent integrity of the substrate metal. The removed metal may also be conveniently recovered. A molten salt bath of alkali metal hydroxide and alkali metal salt of an oxidizing agent is employed. Careful electrode to bath contact times and bath temperatures are observed. Additionally, a dilute mineral acid rinse follows such molten salt bath contact for the electrode.

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