Influence of lactic acid on the solvent extraction separation of Sm(III) and Co(II) from chloride medium using DEHPA

被引：7

作者：

Satpathy, Swagatika ^{[1
]}

Mishra, Sujata ^{[1
]}

机构：

[1] Siksha O Anusandhan Deemed Be Univ, Inst Tech Educ & Res, Dept Chem, Bhubaneswar, India

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 2019年 / 54卷 / 17期

关键词：

Separation; Sm (III); Co (II); chloride medium; RARE-EARTH-ELEMENTS; 2 COMPLEXING AGENTS; SELECTIVE SEPARATION; TRANSITION-METALS; PHOSPHORIC-ACID; NITRATE MEDIUM; RECOVERY; NEODYMIUM; SAMARIUM; IONS;

D O I：

10.1080/01496395.2018.1555595

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A novel process for the separation of Sm (III) and Co (II) from chloride medium using lactic acid in the aqueous feed employing Di-2-ethylhexyl phosphoric acid (DEHPA) in petrofin as organic phase solvent has been developed. Complete separation has been accomplished with 1 M HLac and 0.1 M DEHPA in the pH range 1?3 and using 2.2 M HLac at pH 3 with 0.2 M DEHPA. Sm (III) could be entirely stripped off the loaded organic solvent by means of 1.2 M HCl and HNO3. The extraction process is heat releasing for Sm (III) and heat absorbing for Co (II).

引用

页码：2907 / 2920

页数：14

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