Separation of Nd from mixed chloride solutions with Pr by extraction with saponified PC 88A and scrubbing

被引：27

作者：

Banda, Raju ^{[1
]}

Jeon, Ho Seok ^{[2
]}

Lee, Man Seung ^{[1
]}

机构：

[1] Mokpo Natl Univ, Inst Rare Met, Dept Adv Mat Sci & Engn, Chungnam 534729, South Korea

[2] Korea Inst Geosci & Mineral Resources KIGAM, Div Minerals Utilizat & Mat, Taejon 305350, South Korea

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2015年 / 21卷

关键词：

Pr; Nd; Solvent extraction; Scrubbing; Recovery; RARE-EARTH-METALS; SOLVENT-EXTRACTION; DIETHYLENETRIAMINEPENTAACETIC ACID; PHOSPHONIC ACID; NEODYMIUM; IONS; RECOVERY;

D O I：

10.1016/j.jiec.2014.03.002

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Solvent extraction of Pr and Nd from chloride solution was carried out using PC 88A for the recovery of magnetic grade Nd. The presence of complexing reagents (H2O2 and citric acid) affected little the selective extraction of Nd over Pr. The observed maximum separation factor between Pr and Nd was 1.5, indicating that the separation of Nd and Pr by selective extraction was difficult. Co-extraction of two metals with PC 88A followed by selective scrubbing was tried. Batch simulation of counter-current showed that the complete recovery of Nd was possible and a process flow sheet has been presented. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：436 / 442

页数：7

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