Recovery of Sb(V) using a functional-ligand-containing porous hollow-fiber membrane prepared by radiation-induced graft polymerization

Hidetaka Kawakita, Kazuya Uezu, Satoshi Tsuneda, Kyoichi Saito, Masao Tamada, Takanobu Sugo

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    26 Citations (Scopus)

    Abstract

    A ligand-containing porous membrane was prepared by radiation-induced graft polymerization of an epoxy-group-containing monomer of glycidyl methacrylate onto a polyethylene porous hollow-fiber membrane and by subsequent conversion of the epoxy group to an N-methylglucamino (NMG) group at a density of 0.78 mmol/g of the membrane. Sb(V) solution was permeated through the NMG-ligand-containing porous hollow-fiber membrane. Optimum pH for Sb(V) recovery was 3.0. Breakthrough curves of Sb (V) overlapped irrespective of residence times of Sb (V) in the membrane, due to negligible diffusional mass-transfer resistance. Maximum amount of Sb (V) adsorbed was 130 mg/g-membrane, which was equivalent to 1.3 binding molar ratio. Repeated usage of the membrane for adsorption and elution was possible.

    Original languageEnglish
    Pages (from-to)190-196
    Number of pages7
    JournalHydrometallurgy
    Volume81
    Issue number3-4
    DOIs
    Publication statusPublished - 2006 Mar

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    Keywords

    • Antimony
    • Membrane separation
    • Polyol ligand
    • Porous hollow-fiber membrane
    • Radiation-induced graft polymerization

    ASJC Scopus subject areas

    • Geochemistry and Petrology
    • Geotechnical Engineering and Engineering Geology

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