The use of decylamine for the extraction of actinides and lanthanides from carbonate solutions
This paper studies the extraction of actinides (Th, U, Pu, Am, Cm, Bk, Cf) and the lanthanides (Ce, Eu, Yb, Lu) from solutions of ammonium bicarbonate by decylamine (DA) chloride in chloroform. The following order of extraction of the actinides in various oxidation states was established: Me(III) >Me(IV) > (Me(VI). The extraction of trivalent transplutonium elements increases in the series Cf < Bk < Cm < Am, and that of the rare earth elements Lu < Yb < Eu. The distribution coefficients decrease with increasing HCO/sup -//sub 3/ ion concentration and, conversely, increase with increasing concentration of the metal and extraction reagent. In the system NH/sub 4/HCO/sub 3/-DA in chloroform, a high separation factor of the Am-U pair, equal to 10/sup 3/, is observed.
- OSTI ID:
- 5659313
- Journal Information:
- Sov. Radiochem. (Engl. Transl.); (United States), Journal Name: Sov. Radiochem. (Engl. Transl.); (United States) Vol. 27:1; ISSN SVRDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400105* -- Separation Procedures
ACID CARBONATES
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIDES
ALPHA DECAY RADIOISOTOPES
AMERICIUM 241
AMERICIUM ISOTOPES
AMINES
AMMONIUM CARBONATES
AMMONIUM COMPOUNDS
BERKELIUM 249
BERKELIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CALIFORNIUM 249
CALIFORNIUM ISOTOPES
CARBON COMPOUNDS
CARBONATES
CERIUM 144
CERIUM ISOTOPES
CHLORINATED ALIPHATIC HYDROCARBONS
CHLOROFORM
CURIUM 243
CURIUM ISOTOPES
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
EUROPIUM 152
EUROPIUM 153
EUROPIUM 154
EUROPIUM ISOTOPES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXTRACTION
HALOGENATED ALIPHATIC HYDROCARBONS
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOTOPE SEPARATION
ISOTOPES
LUTETIUM 177
LUTETIUM ISOTOPES
METALS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
PLUTONIUM 239
PLUTONIUM ISOTOPES
QUANTITY RATIO
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
RARE EARTHS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
STABLE ISOTOPES
THORIUM 230
THORIUM ISOTOPES
URANIUM 233
URANIUM ISOTOPES
VALENCE
YEARS LIVING RADIOISOTOPES
YTTERBIUM