Method for recovering with the aid of a crown compound plutonium

Details Method for recovering with the aid of a crown compound plutonium Method for recovering with the aid of a crown compound plutonium

1990-12-11

1993-02-02

Walsh, Donald P.

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Radioactive metal

252627, 252631, B01D 1104

Patent

active

051836459

ABSTRACT:
The invention concerns the recovery of Pu (IV) by using crown compounds.
According to the invention, the aqueous solution containing the plutonium (IV) is placed in contact with at least one crown compound, for example DCH 18C6, dissolved in an organic diluting agent, such as benzonitrile. In the case where the solution only contains traces of Pu, it is possible to use a crown compound secured to a solid phase, such as silica.
The aqueous solution is a concentrated solution of fission products, an effluent originating from an irradiated nuclear fuel reprocessing installation or a concentrated solution of plutonium with americium.

REFERENCES:
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patent: 4683124 (1987-07-01), Muscatello et al.
patent: 4749518 (1988-06-01), Davis, Jr. et al.
patent: 4917825 (1990-04-01), McDowell et al.
patent: 5028402 (1991-07-01), Foos et al.
Chemical Abstracts, vol. 105, 1986, p. 504, Abstract 198772f.
Chemical Abstracts, vol. 104, 1986, p. 592, Abstract 97609g.
Chemical Abstracts, vol. 97, 1982, p. 398, Abstract 61870h.

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