Extraction of rhodium by liquid surfactant membranes containing ionic liquid as a carrier from hydrochloric acid solutions

Takahiko Kakoi, Kanako Muranaga, Masahiro Goto

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    1 Citation (Scopus)

    Abstract

    Extraction behavior of rhodium (III) with a liquid surfactant membrane (LSM) containing an ionic liquid, 1-octyl-3-me-thylimidazolium hexafluorophosphate ([Omim][PF6]), as a carrier from hydrochloric acid solutions has been investigated. At the optimum conditions, rhodium was selectively extracted over tin by using LSMs in which [Omim][PF6] acted as the mobile carrier. The effects of important operational parameters on the recovery of rhodium were examined with three different stripping reagents for LSMs. It was found that the use of 2-amino-2- hydroxymethyl-1,3-propanediol (Tris) as a stripping reagent in LSMs was the key for the effective extraction of rhodium.

    Original languageEnglish
    Pages (from-to)917-920
    Number of pages4
    JournalJOURNAL OF CHEMICAL ENGINEERING OF JAPAN
    Volume51
    Issue number11
    DOIs
    Publication statusPublished - 2018

    All Science Journal Classification (ASJC) codes

    • Chemistry(all)
    • Chemical Engineering(all)

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