Use of. beta. -diketones for the isolation and separation of elements in carbonate media

Journal Article · Tue Sep 01 04:00:00 EDT 1987 · Sov. Radiochem. (Engl. Transl.); (United States)

OSTI ID:5408156

Karalova, Z K; Devirts, E A; Myasoedov, B F

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), Journal Name: Sov. Radiochem. (Engl. Transl.); (United States) Vol. 29:1; ISSN SVRDA
• Country of Publication: United States
• Language: English

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ACID CARBONATES
ACTINIDE COMPOUNDS
ACTINIDE ISOTOPES
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BERKELIUM 249
BERKELIUM 250
BERKELIUM COMPOUNDS
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BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
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CALIFORNIUM 249
CALIFORNIUM COMPOUNDS
CALIFORNIUM ISOTOPES
CARBON COMPOUNDS
CARBONATES
CERIUM 144
CERIUM COMPOUNDS
CERIUM ISOTOPES
CESIUM 137
CESIUM ISOTOPES
COMPARATIVE EVALUATIONS
CURIUM 243
CURIUM COMPOUNDS
CURIUM ISOTOPES
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
EUROPIUM 152
EUROPIUM 153
EUROPIUM 154
EUROPIUM COMPOUNDS
EUROPIUM ISOTOPES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXTRACTION
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
KETONES
MATERIALS TESTING
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
ORGANIC SOLVENTS
OXYGEN COMPOUNDS
PLUTONIUM 239
PLUTONIUM COMPOUNDS
PLUTONIUM ISOTOPES
POTASSIUM CARBONATES
POTASSIUM COMPOUNDS
RADIOISOTOPES
RARE EARTH COMPOUNDS
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SOLVENTS
STABILITY
STABLE ISOTOPES
TESTING
THORIUM 230
THORIUM COMPOUNDS
THORIUM ISOTOPES
TRACER TECHNIQUES
TRANSPLUTONIUM COMPOUNDS
TRANSURANIUM COMPOUNDS
URANIUM 233
URANIUM COMPOUNDS
URANIUM ISOTOPES
VALENCE
YEARS LIVING RADIOISOTOPES