Title:
廃リチウムイオン電池からの有価金属の回収方法
Document Type and Number:
Japanese Patent JP7359062
Kind Code:
B2
Abstract:
To provide a method capable of effectively utilizing dust discharged in an oxidize-roasting process, and also capable of inexpensively and efficiently recovering valuable metal.SOLUTION: A method for recovering valuable metal from a waste lithium-ion battery includes: an oxidize-roasting process to obtain an oxidize-roasted material by oxidizing and roasting the waste lithium-ion battery; a melting process to obtain a molten material by melting the oxidize-roasted material; and a slag separation process to recover an alloy including the valuable metal by separating a slag from the molten material. In the method, the dust generated in the oxidize-roasting process is recovered, and at least a portion of the recovered dust is added to a material to be treated in the melting process.SELECTED DRAWING: Figure 1
Inventors:
Toshihiko Nagakura
Application Number:
JP2020061577A
Publication Date:
October 11, 2023
Filing Date:
March 30, 2020
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
C22B7/00; B09B3/40; B09B3/70; C22B1/02; C22B15/00; C22B23/02; H01M10/54
Domestic Patent References:
| JP2018514053A | ||||
| JP2009256741A | ||||
| JP2019135321A | ||||
| JP2012172169A | ||||
| JP2012251220A | ||||
| JP10158751A |
Foreign References:
| WO2020013294A1 | ||||
| WO2020013293A1 |
Attorney, Agent or Firm:
Masayuki Shobayashi
Kazuyoshi Hayashi
Kazuyoshi Hayashi
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