Use of. beta. -diketones for the isolation and separation of elements in carbonate media
The extraction of uranium, thorium, plutonium, americium, curium, berkelium, californium, europium, and cerium from solutions of K/sub 2/CO/sub 3/ and KHCO/sub 3/ using TTA and PMBP in MIBK was studied, and the composition of the extractable compounds was established. It was shown that under definite conditions ..beta..-diketones extract many elements sufficiently completely within a broad range of carbonate ion concentrations; moreover, the extraction of the actinides decreases in the series Me/sup (III)/ > Me/sup (IV)/ > Me/sup (VI)/, while that of the trivalent transplutonium elements decreases in the sequence Am > Cm > Cf > Bk. Since increasing the carbonate ion concentration has less of an influence on the extraction of americium and curium than on the extraction of uranium, plutonium, and others, this predetermines the possibility of using the system studied not only for the extraction of the actinides but also for the purification of trivalent americium and curium from a number of elements. The separation factors of Am/sup (III)/ and U/sup (VI)/, Am/sup (III)/ and Pu/sup (IV)/, Am/sup (III)/ and Cs/sup (I)/ are equal to 2 x 10/sup 4/, 1 x 10/sup 1/, and 1 x 10/sup -5/, respectively.
- OSTI ID:
- 5408156
- Journal Information:
- Sov. Radiochem. (Engl. Transl.); (United States), Vol. 29:1; Other Information: Translated from Radiokhimiya; 29: No. 1, 33-39(Jan-Feb 1987)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
AMERICIUM COMPOUNDS
SOLVENT EXTRACTION
BERKELIUM COMPOUNDS
CALIFORNIUM COMPOUNDS
CERIUM COMPOUNDS
CURIUM COMPOUNDS
EUROPIUM COMPOUNDS
KETONES
SOLVENT PROPERTIES
PLUTONIUM COMPOUNDS
THORIUM COMPOUNDS
URANIUM COMPOUNDS
ACID CARBONATES
AMERICIUM 241
BERKELIUM 249
BERKELIUM 250
CALIFORNIUM 249
CERIUM 144
CESIUM 137
COMPARATIVE EVALUATIONS
CURIUM 243
EUROPIUM 152
EUROPIUM 153
EUROPIUM 154
MATERIALS TESTING
ORGANIC SOLVENTS
PLUTONIUM 239
POTASSIUM CARBONATES
STABILITY
THORIUM 230
TRACER TECHNIQUES
URANIUM 233
VALENCE
ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALKALI METAL COMPOUNDS
ALKALI METAL ISOTOPES
ALPHA DECAY RADIOISOTOPES
AMERICIUM ISOTOPES
BERKELIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CALIFORNIUM ISOTOPES
CARBON COMPOUNDS
CARBONATES
CERIUM ISOTOPES
CESIUM ISOTOPES
CURIUM ISOTOPES
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
EUROPIUM ISOTOPES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXTRACTION
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PLUTONIUM ISOTOPES
POTASSIUM COMPOUNDS
RADIOISOTOPES
RARE EARTH COMPOUNDS
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SEPARATION PROCESSES
SOLVENTS
STABLE ISOTOPES
TESTING
THORIUM ISOTOPES
TRANSPLUTONIUM COMPOUNDS
TRANSURANIUM COMPOUNDS
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES
050400* - Nuclear Fuels- Feed Processing
400201 - Chemical & Physicochemical Properties
400702 - Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials