Solvent extraction of copper (II) with di-2-methylnonylphosphoric acid in some organic diluents

被引：7
|
作者：
Tao, W [1 ]
Nagaosa, Y [1 ]
机构：
[1] Fukui Univ, Fac Engn, Fukui 9108507, Japan
来源：
SOLVENT EXTRACTION AND ION EXCHANGE | 2003年 / 21卷 / 02期
关键词：
extraction; equilibrium; di-2-methylnonylphosphoric acid; copper; stoichiometry;
D O I：
10.1081/SEI-120018950
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The extraction of copper (II) with di-2-methylnonylphosphoric acid (DMNPA) (HA) has been investigated in n-dodecane, toluene, and 1-octanol as organic diluents at 28+/-0.2degreesC. The extracted copper (II) species were found to be CuA(2).2HA in n-dodecane, CuA(2).3HA in toluene, and CuA(2) in 1-octanol. The stoichiometry of the extracted metal species was compared with that of di-2-ethylhexylphosphoric acid (DEHPA) under the same experimental conditions. UV-Vis and FT-IR spectroscopic data on the extractants and their complexes indicated that the binding mode of the metal complexes varied with the polarity of diluents.
引用
收藏
页码：273 / 290
页数：18
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