Title:
LITHIUM-CONTAINING SLAG AND METHOD FOR PRODUCING VALUABLE METAL
Document Type and Number:
WIPO Patent Application WO/2023/228538
Kind Code:
A1
Abstract:
The present invention provides Li-containing slag which is obtained by melting a starting material such as waste lithium ion batteries that contain Li and Al, and which has a slag melting point that is effectively controlled to a specific temperature or less, while suppressing the addition amount of a flux, wherein Li is effectively concentrated by suppressing the amount of slag. The present invention provides Li-containing slag which is obtained by melting a starting material that contains waste lithium ion batteries which contain lithium (Li) and aluminum (Al), and which is characterized in that: relational expressions Al/Li < 5 and (silicon (Si))/Li < 0.7 are satisfied in terms of the mass ratio; and 30% by mass or less of Al, 6% by mass or more of Mn, 3% by mass to 20% by mass of Li and 0% by mass to 7% by mass of Si are contained therein.
Inventors:
YAMASHITA YU (JP)
NAGAKURA TOSHIHIKO (JP)
NAGAKURA TOSHIHIKO (JP)
Application Number:
PCT/JP2023/011423
Publication Date:
November 30, 2023
Filing Date:
March 23, 2023
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
C22B26/12; C22B7/00; H01M10/54
Domestic Patent References:
| WO2020212587A1 | 2020-10-22 | |||
| WO2022085222A1 | 2022-04-28 | |||
| WO2020013294A1 | 2020-01-16 |
Foreign References:
| JP2021031762A | 2021-03-01 | |||
| JP2013506048A | 2013-02-21 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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