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    Article

    Solubilization of Rhodium in Hydrochloric Acid Using an Alkali Metal Salt Method

    Acids such as aqua regia, a 3:1 mixture of hydrochloric acid (HCl) and nitric acid, that contain strong oxidizing agents are used in the dissolution-based recovery of platinum group metals (PGMs). However, nit...

    Ryo Kasuya, Katsuhiro Nomura, Hirokazu Narita in Metallurgical and Materials Transactions B (2020)

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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)