SYNERGISTIC ION-PAIR EXTRACTION OF LANTHANIDE(III) WITH THENOYLTRIFLUOROACETONE AND CROWN-ETHER INTO 1,2-DICHLOROETHANE

被引：63
|
作者：
KITATSUJI, Y [1 ]
MEGURO, Y [1 ]
YOSHIDA, Z [1 ]
YAMAMOTO, T [1 ]
NISHIZAWA, K [1 ]
机构：
[1] OSAKA UNIV,FAC ENGN,DEPT NUCL ENGN,SUITA,OSAKA 565,JAPAN
来源：
SOLVENT EXTRACTION AND ION EXCHANGE | 1995年 / 13卷 / 02期
关键词：
D O I：
10.1080/07366299508918275
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
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 dicychlohexano-18-crown-6, in which the cationic complex, Ln(TTA)(2)CE(+), 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.
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收藏
页码：289 / 300
页数：12
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