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), Vol. 27:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ACTINIDES
ISOTOPE SEPARATION
SOLVENT EXTRACTION
AMINES
SOLVENT PROPERTIES
AMMONIUM CARBONATES
RARE EARTHS
ACID CARBONATES
AMERICIUM 241
BERKELIUM 249
CALIFORNIUM 249
CERIUM 144
CHLOROFORM
CURIUM 243
EUROPIUM 152
EUROPIUM 153
EUROPIUM 154
LUTETIUM 177
PLUTONIUM 239
QUANTITY RATIO
THORIUM 230
URANIUM 233
VALENCE
YTTERBIUM
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
AMERICIUM ISOTOPES
AMMONIUM COMPOUNDS
BERKELIUM ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CALIFORNIUM ISOTOPES
CARBON COMPOUNDS
CARBONATES
CERIUM ISOTOPES
CHLORINATED ALIPHATIC HYDROCARBONS
CURIUM ISOTOPES
DAYS LIVING RADIOISOTOPES
ELECTRON CAPTURE RADIOISOTOPES
ELEMENTS
EUROPIUM ISOTOPES
EVEN-EVEN NUCLEI
EVEN-ODD NUCLEI
EXTRACTION
HALOGENATED ALIPHATIC HYDROCARBONS
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOTOPES
LUTETIUM ISOTOPES
METALS
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
PLUTONIUM ISOTOPES
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SEPARATION PROCESSES
STABLE ISOTOPES
THORIUM ISOTOPES
URANIUM ISOTOPES
YEARS LIVING RADIOISOTOPES
400105* - Separation Procedures