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Title: Laboratory-scale evaluations of alternative plutonium precipitation methods

Technical Report ·
DOI:https://doi.org/10.2172/5318991· OSTI ID:5318991

Plutonium(III), (IV), and (VI) carbonate; plutonium(III) fluoride; plutonium(III) and (IV) oxalate; and plutonium(IV) and (VI) hydroxide precipitation methods were evaluated for conversion of plutonium nitrate anion-exchange eluate to a solid, and compared with the current plutonium peroxide precipitation method used at Rocky Flats. Plutonium(III) and (IV) oxalate, plutonium(III) fluoride, and plutonium(IV) hydroxide precipitations were the most effective of the alternative conversion methods tested because of the larger particle-size formation, faster filtration rates, and the low plutonium loss to the filtrate. These were found to be as efficient as, and in some cases more efficient than, the peroxide method. 18 references, 14 figures, 3 tables.

Research Organization:
Rockwell International Corp., Golden, CO (United States). Rocky Flats Plant
DOE Contract Number:
AC04-76DP03533
OSTI ID:
5318991
Report Number(s):
RFP-3589; ON: DE84007334
Country of Publication:
United States
Language:
English