Title:
有価金属を回収する方法
Document Type and Number:
Japanese Patent JP7338326
Kind Code:
B2
Abstract:
To provide a process for recovering valuable metal at low cost.SOLUTION: Provided is a process for recovering valuable metal including the following steps: a preparation step of preparing a charge material containing at least lithium (Li) and valuable metal; an oxidation-reduction-melting step of subjecting the charge material to an oxidation treatment and a reduction-melting treatment to yield a reduction product containing a valuable metal-containing molten alloy and a slag; and a slag separation step of separating the slag from the reduction product and recovering the molten alloy, and in which the molar ratio (Li/Al ratio) of lithium (Li) to aluminum (Al) in the slag is set to 0.40 or more, and the molar ratio (Ca/Al ratio) of calcium (Ca) to aluminum (Al) in the slag is set to 0.30 or more.SELECTED DRAWING: Figure 1
Inventors:
Yu Yamashita
Ryo Togashi
Ryo Togashi
Application Number:
JP2019157140A
Publication Date:
September 05, 2023
Filing Date:
August 29, 2019
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
C22B5/02; B09B3/40; B09B5/00; C22B1/02; C22B7/00; C22B15/00; C22B23/02; H01M10/54
Domestic Patent References:
| JP2013506048A | ||||
| JP2019502826A | ||||
| JP2019135321A |
Attorney, Agent or Firm:
Masayuki Shobayashi
Kazuyoshi Hayashi
Kazuyoshi Hayashi
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