PLUTONIUM EXTRACTION FROM NITRATE AND SULFATE SOLUTIONS BY AMINES AND ORGANOPHOSPHORUS COMPOUNDS
Plutonium extraction coefficients from acid nitrate and sulfate solutions by amines and some neutral and acid organophosphorus compounds were measured as functions of several extraction variables, including plutorium valence, acid and salt concentration, and extractant concentration. Extractability by all the reagents varied in the order Pu(IV)> Pu(VI)> Pu(III); however, several systems showed usefully high extractions of plutonium from stabilized Pu(III) solutions. Primary amines extracted Pu(IV) sulfate much more strongly than the nitrate; most of the other reagents extracted the sulfate much less strongly than the nitrate, but still to a usable extent in some systems. Plutonium(IV) nitrate extractions with the different extractants passed through maxima at widely different nitric acid concentrations. With most, but not all, extraction increased when nitric acid was replaced with nitrate salt. (auth)
- Research Organization:
- Oak Ridge National Lab., Tenn.
- DOE Contract Number:
- W-7405-ENG-26
- NSA Number:
- NSA-15-011055
- OSTI ID:
- 4082355
- Report Number(s):
- ORNL-3051
- Country of Publication:
- United States
- Language:
- English
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