Process for oxidizing vanadium and/or uranium

Details Process for oxidizing vanadium and/or uranium Process for oxidizing vanadium and/or uranium

1978-10-10

1980-09-16

Sebastian, Leland A.

Chemistry: electrical and wave energy

Processes and products

204 1R, 204130, C25C 122

Patent

active

042228263

ABSTRACT:
The present invention provides a process for rapidly and efficiently oxidizing either or both vanadium and uranium from the trivalent and guadrivalent oxidation states, respectively, to the pentavelent and hexavalent oxidation states, respectively, through the use of a special electrode. The electrode is produced by anodically treating a substrate material selected from the group of titanium, zirconium, niobium, hafnium and alloys thereof in an aqueous electrolyte. The electrolyte comprises an aqueous solution of manganous ion in a concentration of from about 15 to 50 gm/l and from about 10 to 40 gm/l sulfuric acid. Manganese dioxide is electrodeposited on the substrate to form the electrode. The manganese dioxide coated electrode then is placed in an oxidation cell as an anode wherein it is potentiostaticly controlled to oxidize either or both vanadium and uranium without significant anode deterioration and without oxygen generation at the anode.

REFERENCES:
patent: 4116783 (1978-09-01), Generini

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