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U.S. Department of Energy
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Solvent extraction of plutonium (IV) polymer by organophosphorus compounds. [Octylphenyl-N,N-diisobutylcarbamoylmethylphosphine oxide]

Conference ·
OSTI ID:5413758
We have recently discovered bifunctional organophosphorus reagents and TOPO(trioctylphosphine oxide) extract hydrolytic plutonium (IV) polymer from 0.1 to 7.0 M nitric acid. Other extractants are not effective in the extraction of the polymer. The extraction behavior of the polymer with octylphenyl-N,N-diisobutylcarbamoylmethylphosphine oxide(OOD(IB)CMPO), both alone and mixed with TBP(tri-n-butylphosphate) and with TOPO will be discussed. In addition, the extraction behavior with DHDECMP(Dihexyl-N,N-diethylcarbamoylmethylphosphonate) will be reviewed for comparison. In general, the extraction of the polymer increases with nitric acid concentration and is second-to-third power dependent on extractant concentration. The most efficient stripping agent is 1.0 M sodium carbonate. 1 ref.
Research Organization:
Rockwell International Corp., Golden, CO (USA). Rocky Flats Plant
DOE Contract Number:
AC04-76DP03533
OSTI ID:
5413758
Report Number(s):
RFP-3802; CONF-850417-27; ON: DE85013229
Country of Publication:
United States
Language:
English