Uranium complex recycling method of purifying uranium liquors

Details Uranium complex recycling method of purifying uranium liquors Uranium complex recycling method of purifying uranium liquors

1973-11-01

1976-06-29

Padgett, Benjamin R.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

423 8, 423 11, 423 15, 423260, 423261, 423253, C01G 4300, C01G 4302

Patent

active

039668738

ABSTRACT:
Uranium is separated from contaminating cations in an aqueous liquor containing uranyl ions. The liquor is mixed with sufficient recycled uranium complex to raise the weight ratio of uranium to said cations preferably to at least about three. The liquor is then extracted with at least enough non-interfering, water-immiscible, organic solvent to theoretically extract about all of the uranium in the liquor. The oganic solvent contains a reagent which reacts with the uranyl ions to form a complex soluble in the solvent. If the aqueous liquor is acidic, the organic solvent is then scrubbed with water. The organic solvent is stripped with a solution containing at least enough ammonium carbonate to pecipitate the uranium complex. A portion of the uranium complex is recycled and the remainder can be collected and calcined to produce U.sub.3 O.sub.8 or UO.sub.2.

REFERENCES:
patent: 3052513 (1962-09-01), Crouse
patent: 3052514 (1962-09-01), Schmitt
patent: 3214239 (1965-10-01), Hazen et al.
patent: 3711591 (1973-01-01), Hurst et al.
patent: 3737513 (1973-06-01), Wiewiorowski et al.
patent: 3835214 (1974-09-01), Hurst et al.

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