AN INVESTIGATION ON THE EXTRACTION OF RHODIUM FROM AQUEOUS CHLORIDE SOLUTIONS WITH 7-SUBSTITUTED 8-HYDROXYQUINOLINES

被引：41

作者：

BENGUEREL, E ^{[1
]}

DEMOPOULOS, GP ^{[1
]}

COTE, G ^{[1
]}

BAUER, D ^{[1
]}

机构：

[1] ESPCI,CHIM ANALYT LAB,CNRS,U43,F-75005 PARIS,FRANCE

来源：

SOLVENT EXTRACTION AND ION EXCHANGE | 1994年 / 12卷 / 03期

关键词：

D O I：

10.1080/07366299408918221

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The extraction of Rh(III) from chloride solutions with 2 different 7-substituted 8-hydroxyquinoline (R-HQ) reagents was studied. Rh(III) was found to be extracted, to a limited degree, via an ion-pair involving the anionic hexachloro species of Rh(III), RhCl63-, and the protonated extractant. Through computer simulation of the extraction equilibria for one extractant, TN 1911, an extraction constant of log K(ex) = 5.8 was determined. The effect of age, contact time, [HCl], [Cl-], [H+], and [SO42-] on the extraction of Rh(III) with R-HQ reagents is reported.

引用

页码：497 / 516

页数：20

共 22 条

[1]

ASHRAFIZADEH S, UNPUB

[2]

BENGUEREL E, 1992, UNPUB HYDROMETAL JUN

[3]

BENGUEREL E, 1993, SOLVENT EXTRACTION P, P376

[4] HYDROLYTIC POLYMERIZATION OF RHODIUM(III) .1. PREPARATION, SOLUTION STUDIES, AND X-RAY STRUCTURE OF THE DOUBLY BRIDGED DIMER [(H2O)4RH(MU-OH)2RH(OH2)4](DMTOS)4.8H2O [J].