C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/195, 53/206
C22B 60/04 (2006.01) C01G 56/00 (2006.01) C22B 3/26 (2006.01) C22B 3/36 (2006.01) C22B 60/02 (2006.01) G21C 19/46 (2006.01) G21F 9/06 (2006.01)
Patent
CA 2031750
ABSTRACT OF THE DISCLOSURE The invention concerns a method to separate Pu from U and from fission products with the aid of crown compounds. According to this method, the aqueous solution AO containing Pu, U and fission products, such as a solution derived from the first cycle for reprocessing irradiated or spent nuclear fuels, is placed in contact with an organic solvent O0 including at least one crown compound, the U being then re-extracted by the water or by a nitric aqueous solution, the Pu finally being recovered by re-extraction, for example from an aqueous solution of H2SO4. Fig. 1 B 10316/10185 MDT
Chomel Rodolphe
Doutreluigne Pierre
Foos Jacques
Guy Alain
Guyon Vincent
Chomel Rodolphe
Cogema-Compagnie Generale Des Matiere Nucleaires
Doutreluigne Pierre
Foos Jacques
Goudreau Gage Dubuc
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