Separation of platinum and palladium from hydrochloric acid solutions with 1-Octyl-3-methylimidazolium hexafluorophosphate as an extractant

Takahiko Kakoi, Mina Kawagoe, Masahiro Goto

研究成果: Contribution to journalArticle

5 引用 (Scopus)

抜粋

The extraction behavior of platinum(II), platinum(IV) and palladium(II) with an ionic liquid, 1-octyl-3-methylimidazolium hexafluorophosphate ([Omim][PF6]), and a quaternary ammonium salt, distearyldimethylammonium chloride (DSDMAC), as extractants has been investigated in a liquid–liquid extraction system. In the present experimental conditions, platinum was extracted selectively over palladium by both extractants. It was found that DSDMAC possessed a higher extraction ability for the metals than that of [Omim][PF6]; on the other hand, more effective separation of platinum and palladium was achieved using [Omim][PF6] than using DSDMAC. The composition of the complex between their metals and extractants was elucidated by slope analysis and Job’s method. The metals exist as chloro anion complexes in a hydrochloric acid solution, which reacted with extractant molecules in chloroform and were extracted into the organic solutions. Furthermore, platinum could be separated from palladium in an acidic chloride medium using the ionic liquid as an extractant.

元の言語英語
ページ(範囲)666-670
ページ数5
ジャーナルJOURNAL OF CHEMICAL ENGINEERING OF JAPAN
47
発行部数8
DOI
出版物ステータス出版済み - 1 1 2014

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

フィンガープリント Separation of platinum and palladium from hydrochloric acid solutions with 1-Octyl-3-methylimidazolium hexafluorophosphate as an extractant' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用