Synergistic extraction of Ni(II) by mixtures of LIX 860 and bis(2-ethylhexyl) phosphoric acid

被引：13
作者：
Andrade, F [1 ]
Elizalde, MP [1 ]
机构：
[1] Univ Basque Country, Dpto Quim Analit, E-48080 Bilbao, Spain
来源：
SOLVENT EXTRACTION AND ION EXCHANGE | 2005年 / 23卷 / 01期
关键词：
synergism; liquid-liquid equilibria; LIX; 860; bis-(2-ethylhexyl)-phosphoric acid; nickel;
D O I：
10.1081/SEI-200044383
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The equilibria of extraction of Ni(II) from 1.0 M nitrate medium by mixtures of LIX 860 and bis-(2-ethylhexyl)phosphoric acid (HDEHP) dissolved in toluene have been studied. Synergistic effects have been obtained and explained in terms of the formation of mixed complexes of stoichiometries NiL2(HL)(HR) and NiL2(HR)(4), HL being 5-dodecylsalicylaidoxime, the active component of LIX 860, and HR representing HDEHP. Values of the equilibrium constants of the extraction reactions are given.
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收藏
页码：85 / 99
页数：15
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