Am in the organic solvent (III), Pu (IV) a N, N- dipropyl diglycolic acid amide (PDGAA) reverse extraction methods using a nitric acid solution of 0.1M or higher concentrations of dissolved compound

摘要

PROBLEM TO BE SOLVED: To easily back-extract trivalent and tetravalent actinoid ions in an aqueous phase after extracting the trivalent and tetravalent actinoid ions such as Np (IV), Pu (III), Pu (IV), Am (III) and Cm (III) in an organic solvent so as to contribute to the process design for spent fuel reprocessing or the like.;SOLUTION: Am (III) and Pu (IV) contained in an organic solvent are back-extracted by using a nitric acid solution having a concentration of 0.1 M and containing dissolved N,N-dipropyl-diglycolamide acid (PDGAA) compound.;COPYRIGHT: (C)2006,JPO&NCIPI