Yellowcake processing in uranium recovery

Details Yellowcake processing in uranium recovery Yellowcake processing in uranium recovery

1979-11-16

1981-11-24

Miller, Edward A.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423260, C01G 4301

Patent

active

043024289

ABSTRACT:
A process for the recovery of uranium by precipitation from a rich eluate by contacting the eluate with hydrogen peroxide to produce uranium peroxide yellowcake and reacting the yellowcake with a reducing agent to produce uranium trioxide. The reaction between the yellowcake and the reducing agent may be carried out at a temperature less than 100.degree. C. Subsequent to the reducing step, the uranium trioxide may be washed with water in order to remove water soluble salts present as impurities. Thereafter, the uranium trioxide is dried at a temperature less than 200.degree. C.

REFERENCES:
patent: 2780515 (1957-02-01), Miller et al.
patent: 2849284 (1958-08-01), Wigner et al.
patent: 2878100 (1959-03-01), Googin, Jr.
patent: 2903334 (1959-09-01), Buckingham
patent: 3453216 (1969-07-01), Fitch et al.
patent: 4024215 (1977-05-01), Caropreso et al.
Bailar et al., "Comprehensive Inorganic Chemistry", 5, pp. 229-230 and 249, Program on Press (1973) Oxford.
Mellor, "Inorganic and Theoretical Chemistry", XII, pp. 69-71, Longmans, Green & Co. (1932) London.
Merritt, "The Extractive Metallurgy of Uranium", pp. 247-254, Colorado School of Mines (1971).

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