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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

    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)