Process for oxidizing vanadium and/or uranium

Patent · Tue Sep 16 04:00:00 EDT 1980

OSTI ID:6698943

Brunsell, D A; Riggs, O L

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.

• Assignee: Kerr-Mcgee Corp
• Patent Number(s): US 4222826
• OSTI ID: 6698943
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400400* -- Electrochemistry
400702 -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDES
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL REACTIONS
CHEMISTRY
ELECTRIC POTENTIAL
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
ELECTRODES
ELEMENTS
IONS
MANGANESE COMPOUNDS
MANGANESE IONS
MANGANESE OXIDES
MEASURING INSTRUMENTS
METALS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POTENTIOSTATS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
URANIUM
VANADIUM