Separation of iron from cobalt in nitrate medium using Cyanex-923 as extractant

被引：0
|
作者：
S. A. Ansari
M. S. Murali
P. N. Pathak
V. K. Manchanda
机构：
[1] Bhabha Atomic Research Centre,Radiochemistry Division
来源：
Journal of Radioanalytical and Nuclear Chemistry | 2004年 / 262卷
关键词：
Organic Phase; Oxalic Acid; Phosphine Oxide; Nitric Acid Concentration; Oxalic Acid Solution;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A method for the separation of Fe(III) from Co(II) in nitric acid medium has been developed using 30% Cyanex-923 in n-dodecane. Nitric acid extraction studies (0.5 to 6.0M) as a function of Cyanex-923 concentration (10-30%) suggest the probable extraction of more than one species of Cyanex-923. HNO3 complex. Third phase formation was observed at 8.0M HNO3. Extraction of Fe(III) increases monotonously with acidity (1.0-7.0M) whereas that of Co(II) is negligible at all acidities. Fe(III) was quantitatively loaded in the organic phase in two contacts at 7.0M HNO3
引用
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页码：469 / 472
页数：3
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