Separation of nickel, cobalt and copper by solvent extraction with P204

被引：0

作者：

Qian, D ^{[1
]}

Wang, KY ^{[1
]}

Cai, CL ^{[1
]}

Pan, CY ^{[1
]}

Tang, YG ^{[1
]}

Jiang, JZ ^{[1
]}

机构：

[1] Cent S Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2001年 / 11卷 / 05期

关键词：

non-equilibrium solvent extraction; equilibrium solvent extraction; nickel; cobalt; copper; di(2-ethyl-hexyl) phosphate;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Nickel, cobalt and copper were separated by solvent extraction with P204. The experimental results show that [Co(NH3)(6)](3+) is an inert complex in extraction kinetics, therefore cobalt can be separated from nickel and copper by non-equilibrium solvent extraction. Under the conditions of temperature 25 degreesC, contact time of two phases 10 min, phase ratio 1:1, aqueous pH 10.10 and concentration of P204 20%, [ Co(NH3)(6)](3+) is hardly extracted by P204, while the percentage extractions of nickel and copper are 79.3% and 93.9% respectively. Nickel and copper are separated by equilibrium solvent extraction with P204. Under the conditions of temperature 25 degreesC, contact time of two phases 1 min, phase ratio 1: 1, equilibrium pH 4.01 and concentration of P204 20%, the separation factor of copper and nickel is 216.

引用

页码：803 / 805

页数：3

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