Dowa Metals & Mining Co., Ltd.

Tanaka Kikinzoku Kogyo K.k.

Katsunori Yamaguchi

Minoru Kawasaki

Yuzuru Nakamura

Tetsuya Ueda

Keiko Ishizaki

A method of suppressing a distribution of PGM into a Cu2O slag in an oxidation smelting of a method of recovering PGM, is provided, including: carrying out reduction smelting to a treatment target member containing PGM, Cu and/or CuO, and flux, to thereby generate a molten slag and a Cu alloy containing PGM; and oxidizing and melting the Cu alloy containing the PGM, to thereby generate a CuO slag containing PGM and the Cu alloy, with more concentrated PGM concentration than the Cu alloy containing the PGM, wherein when carrying out the oxidation smelting, acidic oxide or basic oxide is added.

Method of recovering PGM

Provided is a method of unevenly distributing a specific element in a copper phase out of platinum group elements that exist in the copper phase, including further adding copper into a molten copper phase containing the platinum group elements including at least rhodium, thereby increasing a distribution ratio of rhodium in the molten copper phase.

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Morioka, Japan

Katsunori Yamaguchi