PROCESS FOR THE EXTRACTION OF URANIUM VI AND / OR PLUTONIUM IV IN AQUEOUS ACIDIC SOLUTION USING A MIXTURE OF N, N-DIALKYLAMIDES, USEFUL FOR THE REPAIR OF IRRADIATED NUCLEAR FUELS

摘要

The invention relates to a process for extracting uranium VI and / or plutonium IV present in an acidic aqueous solution by means of a mixture of N, N-dialkylamides, which can be used for the reprocessing of irradiated nuclear fuels. / P P An aqueous solution containing U VI and Pu IV is brought into contact in 50 or 52 with an organic solvent comprising a mixture of two N, N-dialkylamides, for example of formulas: BR/ (CF DRAWING IN BOPI) BR/ then the organic solvent containing either U VI and Pu IV or U VI is separated (at 50 or 52).