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A fundamental study on recovery of copper with a cation exchange membrane: Part 1 — Ion exchange equilibria between cupric and hydrogen ions

Authors

  • Toshinori Kojima,

    1. Department of Chemical Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyoku, Tokyo 113, Japan
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  • Shintaro Furusaki,

    1. Department of Chemical Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyoku, Tokyo 113, Japan
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  • Kenji Takao,

    1. Department of Chemical Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyoku, Tokyo 113, Japan
    Current affiliation:
    1. Chiba Works, Kawasaki Steel Co. Ltd., 1 Kawasakicho, Chiba-shi, 260, Japan.
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  • Terukatsu Miyauchi

    1. Department of Chemical Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyoku, Tokyo 113, Japan
    Current affiliation:
    1. Department of Industrial Chemistry, Science University of Tokyo, 1–3 Kagurazaka, Shinjuku, ku, Tokyo, 162, Japan.
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Abstract

It is possible to concentrate metal ion against the gradient of its concentration through a cation exchange membrane. The membrane has a high ion exchange capacity and is hydrophilic, therefore a rapid transfer rate of ions is expected.

Ion exchange equilibrium data between cupric and hydrogen ions for sulfuric and nitric acid systems are obtained and analyzed quantitatively for concentrations of dissociated cupric and hydrogen ions.

Abstract

On peut, au moyen d'une membrane échangeuse de cations, concentrer un ion métallique contre le gradient de sa concentration; cette membrane a une capacité élevée d'échange d'ions et elle est hydrophyle ce qui permet de prévoir une vitesse de transfert élevée.

On a obtenu des données d'équilibre d'échange d'ions entre les ions cuivriques et les protons dans le cas des systèmes acide sulfurique et acide nitrique; on les analyse quantitativement pour diverses concentrations des ions cuivrique et hydrogène dissociés.

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