Preparation of PbO.sub.2 anode

Details Preparation of PbO.sub.2 anode Preparation of PbO.sub.2 anode

1975-07-31

1977-05-31

Edmundson, F.C.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204 57, 204 83, 204291, C25B 130, C25B 1110, C25B 1116

Patent

active

040267865

ABSTRACT:
A method for, and product produced by, electrodeposition of lead dioxide on a substrate anode from electrolyte containing lead nitrate and free nitric acid, wherein the free nitric acid concentration in the electrolyte is maintained at about 90 to about 125 grams per liter, to substantially eliminate the concurrent electrodeposition of lead monoxide onto the substrate. Anodes so produced are useful in electrowinning processes for recovering metals from metal ores.

REFERENCES:
patent: 817419 (1906-04-01), Dieffenbach
patent: 1706951 (1929-03-01), Benner
patent: 1970804 (1934-08-01), Kerk
patent: 2711497 (1955-06-01), Ruben
patent: 2872405 (1959-02-01), Miller et al.
patent: 3634216 (1972-01-01), Gibson et al.

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