Solvent extraction of cadmium(II) from sulphate solutions using TOPS 99, PC 88A, Cyanex 272 and their mixtures

被引：56

作者：

Reddy, BR ^{[1
]}

Priya, DN ^{[1
]}

Kumar, JR ^{[1
]}

机构：

[1] Indian Inst Chem Technol, CSIR, Inorgan Chem Div, Hyderabad 500007, Andhra Pradesh, India

来源：

HYDROMETALLURGY | 2004年 / 74卷 / 3-4期

关键词：

organophosphorus extractants; solvent extraction; cadmium (II); synergism; separation;

D O I：

10.1016/j.hydromet.2004.06.001

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Extraction of cadmium (II) from sulphate solutions using organophosphorous-based extractants-TOPS 99, PC 88A and Cyanex 272 has been studied. Percent extraction of cadmium (II) increased with increasing equilibrium pH of the aqueous phase and extractant concentration. Extraction of Cd (II) by organophosporus extractants involves cation exchange mechanism with the formation of 1:3 metal to reagent complex. Characterization of the solid complex of cadmium with TOPS 99 by FTIR, (PNMR)-P-31 supported metal complex formation with the phosphorus-hydroxyl (P-OH) group. Finally, the extraction behavior and possible separation of cadmium and nickel from the mixture of metals was studied. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：277 / 283

页数：7

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