Transplutonium elements separation on anionites by using aqueous-alcohol solutions of nitric acid and butyric acid mixtures

The behaviour of 243Am, 243Cm, and 249Cf isotopes has been investigated in aqueous-methanol solutions of butyric, isobutyric, α-oxybutyric and α-oxynisobutyric acids in a mixture with nitric acid during their sorption on strongly basic anionites. The coefficients of distribution of transplutonium elements have been determined depending on the concentration of various components of the solution. Under the optimum conditions, the factors of separation of Am-Cm and Cm-Cf pairs amount to about 6 and 4 respectively. The advantages of using macroporous anionites of the soviet production have been demonstrated for the separation of transplutonium elements in the systems under examination