One step effective separation of platinum and palladium in an acidic chloride solution by using undiluted ionic liquids

Jian Yang, Fukiko Kubota, Yuzo Baba, Noriho Kamiya, Masahiro Goto

研究成果: Contribution to journalArticle査読

24 被引用数 (Scopus)

抄録

Imidazolium-based ionic liquids (ILs) with Tf2N- as anions were studied as extractants without dilution for the extractive separation of platinum and palladium in an acidic chloride solution. The effect of the alkyl chain length on the extraction performance was evaluated and, based on the performance, the IL, 1-methyl-3-octylimidazolium bis(trifluoromethylsulfonyl) imide ([Omim][Tf2N]), was selected to be studied in detail. The extraction of Pt(IV) underwent little change over the HCl concentration studied, while that of Pd(II) decreased with increasing HCl concentration. The separation of Pt(IV) and Pd(II) was highly effective, and the highest separation factor between Pt(IV) and Pd(II) reached 312 at the optimum conditions in a binary component system composed of Pt(IV) and Pd(II). The effect of the initial Pt(IV) concentration on loading capacity and extraction efficiency of Pt(IV) was also investigated.

本文言語英語
ページ(範囲)129-135
ページ数7
ジャーナルSolvent Extraction Research and Development
21
2
DOI
出版ステータス出版済み - 2014

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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