1986•Sov. Radiochem. (Engl. Transl.); (United States)Requires access
Behavior of americium, curium, and certain fission products in fluoride melts in the presence of s olid extraction agents
В. А. Алексеев, V.R. Klokman, Z.E. Morozova, V.S. Ziv
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Abstract
The authors consider the behavior of americium, curium, and certain fission products (europium, cerium, yttrium, and strontium) in fluoride and chlode-fluoride melts in the presence of nonisomorphous solid phases: calcium fluoride and lanthanum and zirconium oxides. It is shown that the trace components enter the solid calcium fluoride in a regular fashion only in the presence of an adequate amount of oxygen in the melt. The effect of oxygen on the coprecipitation with calcium fluoride occurs because oxygen compounds of the elements must be formed in the melt, and these are then coprecipitated with the calcium fluoride.