Separation of cobalt(II) from manganese(II) using a polymer inclusion membrane with N-[N,N-di(2-ethylhexyl)aminocarbonylmethyl]glycine (D2EHAG) as the extractant/carrier

Yuzo Baba, Fukiko Kubota, Masahiro Goto, Robert W. Cattrall, Spas D. Kolev

    研究成果: Contribution to journalArticle査読

    24 被引用数 (Scopus)

    抄録

    BACKGROUND: The hydrometallurgical separation of Co(II) from Mn(II) poses a difficult problem because of their similar chemical and physical properties. A membrane separation method for Co(II) in the presence of Mn(II) has been developed which overcomes the potential technological, environmental and health issues associated with solvent extraction. This paper reports on the development of a polymer inclusion membrane (PIM) capable of efficiently separating these two metal ions. RESULTS: The PIM developed in this study contains 40 wt% N-[N,N-di(2-ethylhexyl)aminocarbonylmethyl] glycine (D2EHAG) as the carrier, 30 wt% cellulose triacetate (CTA) as the base polymer and 30 wt% dioctylphthalate as a plasticizer. The potential of this membrane for Co(II) separation and preconcentration has been demonstrated by the complete transfer of Co(II) from a feed solution containing a similar concentration of Mn(II) into a sulfuric acid receiving solution with less than 5% Mn(II) being transported during the same period. CONCLUSIONS: The PIM developed as part of this study showed potential for the separation and preconcentration of Co(II) from its mildly acidic aqueous solutions in the presence of Mn(II) in applications such as hydrometallurgical processes or recovery of Co(II) from lithium ion batteries.

    本文言語英語
    ページ(範囲)1320-1326
    ページ数7
    ジャーナルJournal of Chemical Technology and Biotechnology
    91
    5
    DOI
    出版ステータス出版済み - 5 1 2016

    All Science Journal Classification (ASJC) codes

    • バイオテクノロジー
    • 化学工学(全般)
    • 再生可能エネルギー、持続可能性、環境
    • 燃料技術
    • 廃棄物管理と処理
    • 汚染
    • 有機化学
    • 無機化学

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