SODIUM-SALTS OF D2EHPA, PC-88A AND CYANEX-272 AND THEIR MIXTURES AS EXTRACTANTS FOR NICKEL(II)

被引：0
作者：
DEVI, NB [1 ]
NATHSARMA, KC [1 ]
CHAKRAVORTTY, V [1 ]
机构：
[1] REG RES LAB,DIV HYDRO & ELECTROMET,BHUBANESWAR 751013,ORISSA,INDIA
来源：
SCANDINAVIAN JOURNAL OF METALLURGY | 1994年 / 23卷 / 5-6期
关键词：
SOLVENT EXTRACTION; NICKEL; D2EHPA; PC-88A; CYANEX-272; BENZENE; SALTS; ELECTRONIC SPECTRA; SYNERGISM;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Extraction of nickel(II) from sulphate solution was carried out using sodium salts of D2EHPA, PC-88A and Cyanex-272(H(2)A(2))) in benzene, the corresponding pH(0.5) values being 6.1, 6.8 and 7.2, respectively The extracted species were determined to be NiA(2) . 2H(2)A(2). The electronic spectra of the 3 nickel-bearing extractants showed that identical species are extracted into the organic phase. The loading capacity of 0.1 M extractant was found out. Detailed investigation pertaining to the influence of various sodium salts on the extraction system was carried out, Synergism was observed with the binary mixtures of the 3 extractants. The extrctants could be arranged in order of increasing synergism as D2EHPA<PC-88A<Cyanex-272.
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页码：194 / 200
页数：7
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