Separation of transplutonium elements on macroporous anionites via the use of aqueous-alcoholic solutions of a mixture of monocarbonic and nitric acids

The TPE behaviour on the strongly basic anionite Dowex-1×8 in aqueous—alcoholic solutions of lactic, butyric, iso-α-oxybutyric and α-oxyisobutyric acids in a mixture with nitric acid has been investigated. Distribution coefficients and separation factors of TPE have been determined depending on the content of various components of the mixture. High values of separation factors have been obtained for the pair Am-Cm (∼6) using mixtures of α-oxybutyric and nitric acids as eluents in aqueous—alcoholic solutions. The advantages of using macroporous anionites AB-1710P and AB-29P for TPE separation in such solutions are discussed.