A cation-exchange cycle has been developed for the recovery and concentration of the Am/Cm product from a DTPA/lactic acid
solution used in an extraction process for the isolation and separation of the actinides from lanthanide fission products.
The optimum pH region for the sorption of Am3+ from 0.05M DTPA/1M lactic acid solutions by strongly acidic cation-exchange resins is pH 0.9–1.0. Maximum usable capacities,
heights of the exchange zone, and concentration factors for different resins, cross-linkages and temperatures have been determined.
Decontamination factors are given for some fission products, as well as U, Np and Pu.