Separation of Ir(IV) and Rh(III) from strong hydrochloric acid solutions by solvent extraction with amines

被引：24
|
作者：
Thi Hong Nguyen [1 ]
Sonu, Chong Ho [2 ]
Lee, Man Seung [1 ]
机构：
[1] Mokpo Natl Univ, Inst Rare Met, Dept Adv Mat Sci ea Engn, Chungnam 534729, South Korea
[2] LS Nikko Copper Inc, Metall Resources Technol Lab, Kyunggi 463400, South Korea
来源：
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2016年 / 36卷
关键词：
Iridium; Rhodium; Separation; Solvent extraction; CHLORIDE SOLUTIONS; PLATINUM; PALLADIUM; RECOVERY; RHODIUM; PT(IV); SYSTEM; RU(III);
D O I：
10.1016/j.jiec.2016.02.006
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The separation of Ir(IV) and Rh(III) from chloride solution by extraction with amines (TOA, TEHA, Alamine 308, and Aliquat 336) was investigated. Ir(IV) was selectively extracted over Rh(III) by these extractants. HCI concentration affected little the extraction of metals. The highest separation factor of 82.5 between the two metals was obtained from 1 M HCI solution by extraction with Aliquat 336. Solution aging until 2 weeks depressed the extraction of Rh(III). The mixture of HCl and thiourea stripped Ir(IV) selectively from the loaded amines and thus promoted the separation. (C) 2016 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：245 / 250
页数：6
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