Ionic liquids with amino moieties: Selective and reversible extraction/back-extraction for platinum group metal ions from aqueous solutions

Su Ma, Kenji Funaki, Atsushi Miyazaki, Atsushi Muramatsu, Kiyoshi Kanie

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Ionic liquids (ILs) with amino moieties were designed and synthesized as extractants for the selective extraction of platinum group metal (PGM) ions into IL phases from mixed aqueous HCl solutions with PGM and other transition metal ions. The loaded PGM ions in the IL phase were successfully back-extracted into an ammonia solution. The back-extraction ability enabled us to apply the current system to a multicycle green PGM-extraction process.

Original languageEnglish
Pages (from-to)1422-1425
Number of pages4
JournalChemistry Letters
Volume46
Issue number9
DOIs
Publication statusPublished - 2017

Keywords

  • Extraction and back-extraction
  • Ionic liquid
  • Platinum group metal

ASJC Scopus subject areas

  • Chemistry(all)

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