C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/195, 53/206
C22B 60/04 (2006.01) C22B 3/36 (2006.01) G21C 19/46 (2006.01) G21F 9/06 (2006.01)
Patent
CA 2031749
ABSTRACT OF THE DISCLOSURE 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. Sole figure. B 10317 MDT
Chomel Rodolphe
Delosge Andre
Doutreluigne Pierre
Foos Jacques
Guy Alain
Chomel Rodolphe
Cogema-Companie Generale Des Matiere Nucleaire
Delosge Andre
Doutreluigne Pierre
Foos Jacques
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