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    Chapter and Conference Paper

    Development of New Extractants for Platinum Group Metal Ions in Hydrochloric Acid Solutions

    is widely used for the separation and purification of platinum group metal ions. This paper describes our development of two series of for Pd( (III) chloridometalates. We have found that sulfide-diamide-t...

    Hirokazu Narita in Rare Metal Technology 2022 (2022)

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    Chapter and Conference Paper

    Equilibrium Modeling of Solvent Extraction and Strip** of Copper(II), Nickel(II), and Ammonia for Ammoniacal Process Using LIX® 84-I

    (II) and (II) are often recovered from ammoniacal alkaline solutions by using hydroxyoxime extractants: both (II) and (II) are extracted from ammoniacal alkaline solutions and, from the loaded organic p...

    Shubin Wang, Jie Li, Hirokazu Narita, Mikiya Tanaka in Extraction 2018 (2018)

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    Chapter and Conference Paper

    Adsorbents for Selective Recovery of Heavy Rare Earth Elements

    There is an increasing attention to recover dilute rare earth elements (REEs) from acidic solutions in order to meet their demands and stabilize their supply chain. Adsorption is suitable for recovering target...

    Takeshi Ogata, Hirokazu Narita, Mikiya Tanaka in Rare Metal Technology 2017 (2017)

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    Chapter and Conference Paper

    Recycling Valuable Metals via Hydrometallurgical Routes

    The hydrometallurgical method is one of the key technologies in metal recycling, because it enables the fine separation between chemically-similar metals and a small-scale operation. In this paper, the recent ...

    Mikiya Tanaka, Kazuya Koyama… in Design for Innovative Value Towards a Sust… (2012)