Separation of platinum(IV) and palladium(II) from concentrated hydrochloric acid solutions by mixtures of amines with neutral extractants

被引：70

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 & 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 | 2015年 / 32卷

关键词：

Platinum; Palladium; Hydrochloric acid; Separation; Solvent extraction; SOLVENT-EXTRACTION; CHLORIDE SOLUTIONS; RECOVERY; RHODIUM; PT(IV); RH(III); PD(II); GOLD;

D O I：

10.1016/j.jiec.2015.08.022

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Separation of platinum and palladium from concentrated HCl solutions by extraction with mixture of amines (Aliquat 336/Alamine 336/TOA) and neutral extractants (TBP/TOP/MIBK) have been investigated. The mixture of Aliquat 336 and TBP led to higher Pt(IV) separation factor at 6 M HCl solution. McCabe-Thiele diagram for the extraction of Pt by this mixture was constructed. Low concentration of thiourea in the HCl solution resulted in selective stripping of Pd from the loaded organic. Pt solution with 99.9% purity was obtained by extraction and stripping from the solution containing Pd. A process was proposed to separate the two metals. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：238 / 245

页数：8

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