SYNERGISTIC SOLVENT-EXTRACTION OF EU(III) AND TB(III) WITH MIXTURES OF VARIOUS ORGANOPHOSPHORUS EXTRACTANTS

被引：10
|
作者：
REDDY, BV
REDDY, LK
REDDY, AS
REDDY, MLP
SUJATHA, S
RAMAMOHAN, TR
DAMODARAN, AD
机构：
[1] CSIR,REG RES LAB,TRIVANDRUM 695019,INDIA
[2] S V UNIV,P G CTR,DEPT CHEM,CUDDAPAH 516004,INDIA
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1994年 / 178卷 / 01期
关键词：
D O I：
10.1007/BF02068662
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Synergistic solvent extraction of Eu(III) and Tb(II) from thiocyanate solutions with mixtures of 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (EHPNA) and di-2-ethylhexylphosphoric acid (DEHPA) or tributyl phosphate (TBP) or trioctylphosphine oxide(TOPO) or triphenylphosphine oxide (TPhPO) in benzene has been studied. The mechanism of extraction can be explained by a simple chemically based model presented in this paper. The equilibrium constants of the mixed-ligand species of the various neutral donors have been determined by non-linear regression analysis.
引用
收藏
页码：109 / 120
页数：12
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