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
收藏
页码：2907 / 2920
页数：14
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