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.

引用

页码：289 / 300

页数：12

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