Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1979-08-21
1981-02-24
Schafer, Richard E.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 844, C22B 6002
Patent
active
042525640
ABSTRACT:
The concentration of carbon in uranium metal ingots induction cast from derbies prepared by the bomb-reduction of uranium tetrafluoride in the presence of magnesium is effectively reduced to less than 100 ppm by removing residual magnesium fluoride from the surface of the derbies prior to casting. This magnesium fluoride is removed from the derbies by immersing them in an alkali metal salt bath which reacts with and decomposes the magnesium fluoride. A water quenching operation followed by a warm nitric acid bath and a water rinse removes the residual salt and reaction products from the derbies.
REFERENCES:
patent: 3088827 (1963-05-01), Mayoteaux
patent: 3140171 (1964-07-01), Trapp
patent: 3148977 (1964-09-01), Teitel
patent: 3290147 (1966-12-01), Duxbury
patent: 3322679 (1967-05-01), Kamemoto et al.
patent: 3709678 (1973-01-01), Helary et al.
patent: 3850623 (1974-11-01), Sheller
patent: 3985551 (1976-10-01), Powell et al.
Harrington, C. D. et al., Eds. "Uranium Production Technology", pp. 245-270, Van Nostrand Co., Princeton, N.J., 1959.
Banker John G.
Beck David E.
Holcombe Cressie E.
Wigginton Hubert L.
Denny James E.
Hamel Stephen D.
Larcher Earl L.
Schafer Richard E.
The United States of America as represented by the United States
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