Solvent-extraction methods of isolating, purifying, and separating the transplutonium elements
The effects of HNO/sub 3/ concentration on the extraction of Am, Cm, and Eu by 0.5 mole/liter solutions in toluene of DTPMDP, HBTA, and TBP for Am, Eu and Cm are shown. The rare-earth concentrations may be 0.1-0.2 mole/liter in many solutions from which TPE must be extracted. A comparison of monofunctional phosphorus-bearing reagents with bifunctional ones containing various substituents shows that phosphine oxides of DOIAPO type are the most suitable for extracting TPE from acid solutions. It is shown that solvent-extraction processes can also be used in the final operations for isolating the TPE. Extracts of TPE in alpha-branched macromolecular carboxylic acids (VIK-1) can be used in the final operations to produce oxide films uniformly and firmly attached to surfaces.
- OSTI ID:
- 7031627
- Report Number(s):
- CONF-8306297-
- Journal Information:
- Sov. Radiochem. (Engl. Transl.); (United States), Vol. 28:1; Conference: 2. All-Union conference on the chemistry of the transplutonium elements, Dimitrovgrad, USSR, 21 Jun 1983
- Country of Publication:
- United States
- Language:
- English
Similar Records
Extraction of transplutonium elements from carbonate solution with alkylpyrocatechol
Features of the thermodynamics of two-phase distribution reactions of americium(III) and europium(III) nitrates into solutions of 2,6-bis[(bis(2-ethylhexyl)phosphino)methyl]pyridine N,P,P'-trioxide.
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AMERICIUM
SOLVENT EXTRACTION
BERKELIUM
CALIFORNIUM
CURIUM
EUROPIUM
ORGANIC SOLVENTS
COMPARATIVE EVALUATIONS
NITRIC ACID
PHOSPHINIC ACID ESTERS
PHOSPHONIC ACID ESTERS
PHOSPHORIC ACID ESTERS
SOLVENT PROPERTIES
TRANSPLUTONIUM ELEMENTS
ACTINIDES
ELEMENTS
ESTERS
EXTRACTION
HYDROGEN COMPOUNDS
INORGANIC ACIDS
METALS
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
RARE EARTHS
SEPARATION PROCESSES
SOLVENTS
TRANSURANIUM ELEMENTS
400703* - Radiochemistry & Nuclear Chemistry- Radioisotope Production
400201 - Chemical & Physicochemical Properties