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

页码：109 / 120

页数：12

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