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Synergistic extraction of trivalent actinides by mixtures of thenoyltrifluoroacetone and neutral oxo donors

Journal Article · · Sep. Sci. Technol.; (United States)
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The synergistic extraction of trivalent actinides Am, Cm, Bk, and Cf has been studied by mixtures of HTTA and TOPO as well as DOSO in xylene at 30/sup 0/C. HTTA-S (TOPO, DOSO) interaction corrections have been applied to calculate the free S concentrations in the organic phase. In the extraction of trivalent actinides, the third-power dependence on (HTTA)/sub org/ at a fixed (S)/sub org/ has been observed only after applying this correction. The synergistic species M(TTA)/sub 3/.S and M(TTA)/sub 3/.2S were found to be extracted into the organic phase whose stability constants (..beta../sub 1/, ..beta../sub 2/, and K/sub 2/) have been evaluated. Extraction by HTTA + S (S = TOPO, DOSO, TBP, TBTP) shows the order of extraction to be Tm > Cf > Bk > Eu > Pm > Am > Cm for the trivalent ions. The Am/Cm separation factor with the synergistic mixtures is approx. 3 whereas with HTTA alone it is approx. 6 when they are extracted from the chloroacetate buffer.
Research Organization:
Bhabha Atomic Research Centre, Bombay, India
OSTI ID:
5590270
Journal Information:
Sep. Sci. Technol.; (United States), Journal Name: Sep. Sci. Technol.; (United States) Vol. 16:8; ISSN SSTED
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
ACTINIDES
AMERICIUM
AROMATICS
BERKELIUM
CALIFORNIUM
CURIUM
DATA
DISTRIBUTION FUNCTIONS
ELEMENTS
EXPERIMENTAL DATA
EXTRACTION
FUNCTIONS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
INFORMATION
KETONES
MEDIUM TEMPERATURE
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
ORGANIC SULFUR COMPOUNDS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SULFOXIDES
SYNERGISM
TOPO
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
TTA
XYLENES