The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 1980
Filed:
Oct. 10, 1978
Olen L Riggs, Jr, Bethany, OK (US);
Dennis A Brunsell, Oklahoma City, OK (US);
Kerr-McGee Corporation, Oklahoma City, OK (US);
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.