Title: THE ABSORPTION OF PLUTONIUM BY ANION RESINS
Abstract: Equilibrium experiments have shown PU{sup +4} to be absorbed from nitric acid onto an anion resin as a complex anion Pu(NO{sub 3}){sup -2}{sub 6}. The amount of absorption is dependent on the plutonium and nitric acid concentrations in the equilibrium solution with a maximum at 7N to 8N HNO{sub 3}. A low cross-linked resin has a higher capacity and reaches equilibrium more rapidly than the normally supplied resin. Saturation capacity of one per cent cross-linked Nalcite SBR (Dowex 1), 50 - 100 mesh, is 385 mg Pu/gram dry resin. (auth)