Separation of uranium from (Th,U)O.sub.2 solid solutions

Details Separation of uranium from (Th,U)O.sub.2 solid solutions Separation of uranium from (Th,U)O.sub.2 solid solutions

1975-01-03

1976-09-28

Padgett, Benjamin R.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

423 5, C22B 6002

Patent

active

039829286

ABSTRACT:
Uranium is separated from mixed oxides of thorium and uranium by a pyrometallurgical process in which the oxides are mixed with a molten chloride salt containing thorium tetrachloride and thorium metal which reduces the uranium oxide to uranium metal which can then be recovered from the molten salt. The process is particularly useful for the recovery of uranium from generally insoluble high-density sol-gel thoria-urania nuclear reactor fuel pellets.

REFERENCES:
kately, J.A. et al. "Reaction of Thoria with Zirconium Chloride" in J. Less Com. Met., 26(1) pp. 145-155, 1972.
Chiotti, P. et al. "Binary Systems ThCl.sub.4 -Th and ThCl.sub.4 -ThOCl.sub.2 " in J. Less Com. Met., 31(3): pp. 365-376, June, 1973.
JHA, M.C., NSA 30: 03864 [Pyrometallurgical Separation of Uranium from (Th,U)O.sub.2 Solid Solutions -- Thesis, 1974].

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