Synergistic ion-pair extraction of lanthanide(III) with thenoyltrifluoroacetone and crown ether into 1,2-dichloroethane
Journal Article
·
· Solvent Extraction and Ion Exchange
- Japan Atomic Energy Research Inst., Ibaraki (Japan)
- Osaka Univ. (Japan)
Synergistic extraction of trivalent lanthanides(Ln) was investigated using thenoyltrifluoroacetone(HTTA) and crown ether(CE). Characteristic ion-pair extraction of the lighter Ln(III) was observed with 1,2-dichloroethane containing HTTA and 18-crown-6 or dicyclohexano-18-crown-6, in which the cationic complex, Ln(TTA){sub 2}CE{sup +}, was formed and extracted. Remarkable increases of an extractability and a selectivity were attained in the synergistic ion-pair extraction of the lighter Ln ions, which could be elucidated on the basis of size-fitting effect in the complex formation of the lighter Ln ions with CE. 19 refs., 2 figs., 3 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 249693
- Journal Information:
- Solvent Extraction and Ion Exchange, Journal Name: Solvent Extraction and Ion Exchange Journal Issue: 2 Vol. 13; ISSN 0736-6299; ISSN SEIEDB
- Country of Publication:
- United States
- Language:
- English
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