Extraction of trivalent lanthanides and actinides by a synergistic mixture of thenoyltrifluoroacetone and a linear polyether
Mixtures of a two component system, a linear polyether, 1,13-bis(8-quinolyl)-1,4,7,10,13-pentaoxatridecane, K-5, and thenoyltrifluoroacetone, HTTA, have been shown to exhibit synergistic character in the extraction of trivalent lanthanides and actinides. The effect of the addition of K-5 to the organic phase on the extractions of Ce(III), Eu(III), Tm(III), Am(III), Cm(III), Bk(III), and Cf(III) by HTTA in chloroform from 0.5M NaNO/sub 3/ at 25/sup 0/C has been measured. These results indicate the extraction is enhanced by the formation of M(TTA)/sub 3/K-5 adduct in the organic phase. The organic phase stability constants for the formation of these synergistic species have been calculated for all the metals studied. The magnitude of these organic phase stability constants for K-5 are similar to other common neutral donors. The order of stability does not follow the normal trend based on charge-to-radius ratio, but follows a pattern based on size, with Am(III) being the most stable.
- Research Organization:
- Tennessee Technological Univ., Cookeville
- DOE Contract Number:
- AS05-79ER10489; W-7405-ENG-26
- OSTI ID:
- 6107639
- Journal Information:
- Solvent Extr. Ion Exch.; (United States), Vol. 2:4 and 5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AMERICIUM
SOLVENT EXTRACTION
BERKELIUM
CALIFORNIUM
CERIUM
CURIUM
EUROPIUM
THULIUM
EXPERIMENTAL DATA
POLYETHYLENE GLYCOLS
TTA
ACTINIDES
ALCOHOLS
DATA
ELEMENTS
EXTRACTION
GLYCOLS
HETEROCYCLIC COMPOUNDS
HYDROXY COMPOUNDS
INFORMATION
KETONES
METALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC FLUORINE COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
ORGANIC SULFUR COMPOUNDS
POLYMERS
RARE EARTHS
SEPARATION PROCESSES
TRANSPLUTONIUM ELEMENTS
TRANSURANIUM ELEMENTS
400105* - Separation Procedures