Americium Talspeak separation

Weaver, B.S., Kappelmann, F.A. 1964. Talspeak A new method of separating americium and curium from lanthanides by extraction from an aqueous solution of aminopo-lyacetic acid complex with a monoacidic phosphate or phosphonate. ORNL-3559. 

While the Talspeak system allows the best separation of the group, systems using TBP or TLAHNO- allow good separation of americium with light rare earths whicn, as is well known, make up the bulk of the mass of lanthanides present in the irradiated targets (14). 

Studies (1, 2, 3, 4) on the separation of americium-curium from lanthanide elements indicate that both cation exchange chromatography (8, 9) and the Talspeak solvent extraction process (U), 11) are promising methods. Only the most recent work at Oak Ridge National Laboratory is reported in this paper. Potential chemical processes for americium-curium removal and evaluations of their feasibility have been reported previously (U 2, 3, 4). The most recent experimental work carried out includes the following ... 

Table III. Effect of H2MEHP Concentration on the Separation Factor for Americium and Europium in Talspeak Partitioning...

Weaver, B. and Kappelmann, F. A. (1964) Talspeak A New Method of Separating Americium and Curium from the Lanthanides by Extraction from an Aqueous Solution... 

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