Extraction of palladium(II) from chloride solutions with Cyphos®IL 101/toluene mixtures as novel extractant

被引：131
|
作者：
Cieszynska, A. [1 ]
Wisniewski, M. [1 ]
机构：
[1] Poznan Univ Tech, Inst Chem Engn & Technol, PL-60965 Poznan, Poland
来源：
SEPARATION AND PURIFICATION TECHNOLOGY | 2010年 / 73卷 / 02期
关键词：
Palladium(II) removal; Extraction; Stripping; Quaternary phosphonium salt; Ionic liquids; Chloride media; HYDROCHLORIC-ACID SOLUTIONS; PLATINUM-GROUP METALS; IONIC LIQUIDS; SOLVENT-EXTRACTION; RECOVERY; SEPARATION; GOLD; PYRIDINECARBOXAMIDES; TRANSPORT; ZINC(II);
D O I：
10.1016/j.seppur.2010.04.001
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Phosphonium ionic liquid: trihexyl(tetradecyl)phosphonium chloride (Cyphos (R) IL 101) has been used as a novel reagent in the presence of toluene to extract palladium(II) from hydrochloric acid solutions of various concentrations. Extraction data indicate that Cyphos (R) IL 101 is a very efficient and fast extractant. The increase in HCl concentration has negative influence on the extraction and about 97 and 54% of palladium(II) can be effectively extracted with Cyphos (R) IL 101 from 0.1 and 3M HCl, respectively. The equilibrium of palladium(II) extraction from aqueous 0.1 and 3M HCl with this phosphonium ionic liquid is achieved after 5 min. Successful stripping of palladium(II) from the loaded organic phase is achieved with 0.5M ammonia solution. Cyphos (R) IL 101 can be reused at least in 5 cycles of extraction-stripping process. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：202 / 207
页数：6
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