METHOD FOR RECOVERING VALUABLE METAL

WIPO Patent Application WO/2022/163179

A1

Provided is a method with which it is possible to inexpensively recover a valuable metal.　The present invention is a method for recovering a valuable metal, the method including the following steps: a readying step for readying a charging material containing at least lithium (Li) and a valuable metal; an oxidation reduction/melting step for applying an oxidation treatment and a reduction/melting treatment on the charging material and obtaining a reduced material containing a valuable-metal-containing molten alloy and slag; and a slag separation step for separating the slag from the reduced material and recovering the molten alloy. The molar ratio (Li/Al ratio) of lithium (Li) to aluminum (Al) in the slag is made to be 0.15 or above and below 0.40, and the molar ratio (Ca/Al) of calcium (Ca) to aluminum (Al) in the slag is made to be 0.15 or above.

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YAMASHITA YU (JP)

PCT/JP2021/045997

August 04, 2022

December 14, 2021

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SUMITOMO METAL MINING CO (JP)

C22B1/00; C22B1/10; C22B5/02; C22B7/00; C22B15/00; C22B23/02; C22B26/12

EP1589121A1	2005-10-26
JP2013506048A	2013-02-21
JP5853585B2	2016-02-09

SHOBAYASHI Masayuki et al. (JP)

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