Molten salt stripping of electrode coatings

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

1989-12-19

1992-08-25

Chaudhuri, Olik

Cleaning and liquid contact with solids

Processes

For metallic, siliceous, or calcareous basework, including...

134 3, 134 10, 134 28, B08B 310, B08B 312, B08B 314

Patent

active

051415631

ABSTRACT:
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 and water rinse, with scrubbing in one of the rinses follows such molten salt bath contact for the electrode. Solids recovered from the rinses are combined.

REFERENCES:
patent: Re28849 (1976-06-01), Itai et al.
patent: 3000766 (1961-09-01), Wainer
patent: 3497426 (1970-02-01), Okamura
patent: 3573100 (1971-03-01), Beer
patent: 3684543 (1972-08-01), de Nora et al.
patent: 3684577 (1972-08-01), Hitzel
patent: 3706600 (1972-12-01), Pumphrey et al.
patent: 3761312 (1973-09-01), Entwistle et al.
patent: 3761313 (1973-09-01), Entwistle et al.
patent: 3837879 (1974-09-01), Sluse et al.
patent: 4132569 (1979-01-01), DePablo et al.
patent: 4446245 (1984-05-01), Hinden
patent: 4568430 (1986-02-01), Vire
patent: 4762694 (1988-08-01), Maroni et al.
patent: 4818303 (1989-04-01), Cole
Hawley, G., The Condensed Chemical Dictionary, 9th Ed., 1/31977, p. 901.

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