Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Patent
1993-05-27
1995-06-06
Mai, Ngoclan
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
75399, 204 15, C22B 6002
Patent
active
054218551
ABSTRACT:
A method is described for forming metallic uranium, or a uranium alloy, from uranium oxide in a manner which substantially eliminates the formation of uranium-containing wastes. A source of uranium dioxide is first provided, for example, by reducing uranium trioxide (UO.sub.3), or any other substantially stable uranium oxide, to form the uranium dioxide (UO.sub.2). This uranium dioxide is then chlorinated to form uranium tetrachloride (UCl.sub.4), and the uranium tetrachloride is then reduced to metallic uranium by reacting the uranium chloride with a metal which will form the chloride of the metal. This last step may be carried out in the presence of another metal capable of forming one or more alloys with metallic uranium to thereby lower the melting point of the reduced uranium product. The metal chloride formed during the uranium tetrachloride reduction step may then be reduced in an electrolysis cell to recover and recycle the metal back to the uranium tetrachloride reduction operation and the chlorine gas back to the uranium dioxide chlorination operation.
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Elliott Guy R. B.
Hayden, Jr. Howard W.
Horton James A.
Daubenspeck William C.
Mai Ngoclan
Moser William R.
The United States of America as represented by the United States
Valdes Miguel A.
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