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CATION AND ANION EFFECTS ON THE DISTRIBUTION OF URANIUM IN THE SYSTEM: ALUMINUM-ALUMINUM HALIDE-ALKALI HALIDE

Technical Report ·
OSTI ID:4766058
A study of the reduction of uranium(III) chloride, in solution in molten KCl-AlCl/sub 3/ mixtures, by molten aluminum was extended to include the effect of substitution of Na/sup +/ or Cs/sup +/ for K/sup +/ and of Br/sup -/ for all, or part, of the Cl/sup -/. Substitution of Na/sup +/ for K/sup +/ hinders the reduction of uranium chloride whereas substitution of Cs/sup +/ for K/sup +/ enhanced the reduction. The effect is in the direction anticipated in view of the relative chioride donor strengths of these alkali chlorides. The reduction of urinium bromide by Al in the system KBr-AlBr/sub 4/--Al occurs to a lesser extent than in the analogous chloride system. On the other hand. substitution of from 5 to l0 mole percent of the chloride by bromide results in markedly enhanced reduction. These results are expiained in terms of the relative strengths of the AlCl/sub 4/ and AlBr/sub 4/ complexes and the reiative stabilities of UCl/sub 3/ and UBr/sub 3/. (auth)
Research Organization:
General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
DOE Contract Number:
AT(45-1)-1350
NSA Number:
NSA-17-006037
OSTI ID:
4766058
Report Number(s):
HW-SA-2537
Country of Publication:
United States
Language:
English