Effect of diluents on the extraction of actinides and nitric acid by bidentate organophosphorus compounds
The effect of dilutents on extraction by bidentate organophosphorus compounds (diphosphine dioxides, carbamoyl phosphonates, and phosphine oxides) was studied. Figures show the effect of dilutents on the extraction of americium by TOPO and by carbamoylmethylene phosphonate, and the effect of dilutents on the extraction of nitric acid and americium by carbamoylphosphine oxide. Also shown is the effect of dilutents on the extraction of americium by diphenyldioctyl methylenediphosphine dioxide, and the effect of dilutents on the extraction of americium by tetraphenylmethylenediphosphine dioxide. It was concluded that when TBP is added the distribution coefficient of Am increases but the effect of TBP may not be represented by the usual power relationship between the distribution coefficient and the TBP concentration, which would be expected if TBP was found to be very strong but for dilution by DCE it was relatively weak. The observed facts can be explained if it is assumed that TBP reacts with the bridging protons in the complex, which are free for dilution by benzene and are partially occupied when dichlorethane is used.
- OSTI ID:
- 6773317
- Journal Information:
- Dokl. Phys. Chem. (Engl. Transl.); (United States), Vol. 286:1-3
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AMERICIUM
SOLVENT EXTRACTION
NITRIC ACID
ORGANIC PHOSPHORUS COMPOUNDS
SOLVENT PROPERTIES
AMERICIUM NITRATES
CARBON TETRACHLORIDE
DILUTION
ORGANIC SOLVENTS
OXIDES
ACTINIDE COMPOUNDS
ACTINIDES
AMERICIUM COMPOUNDS
CHALCOGENIDES
CHLORINATED ALIPHATIC HYDROCARBONS
ELEMENTS
EXTRACTION
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
METALS
NITRATES
NITROGEN COMPOUNDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SOLVENTS
TRANSPLUTONIUM COMPOUNDS
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM COMPOUNDS
TRANSURANIUM ELEMENTS
400105* - Separation Procedures