Title:
LITHIUM-CONTAINING SLAG, AND METHOD FOR PRODUCING VALUABLE METAL
Document Type and Number:
WIPO Patent Application WO/2023/228537
Kind Code:
A1
Abstract:
To provide a slag that allows the slag melting point to be effectively controlled to a predetermined temperature or below while keeping down the amount of flux added and that effectively concentrates Li by keeping down the amount of slag in Li-containing slag obtained by melting a raw material such as waste lithium ion batteries that contains Li and Al. The present invention is an Li-containing slag obtained by melting a raw material containing waste lithium ion batteries that contain lithium (Li) and aluminum (Al), characterized by having relationships of Al/Li < 5 and silicon (Si)/Li < 0.7 by mass ratio and by containing Al in a proportion of 20 mass% or less, Li in a proportion of 3-20 mass%, and Si in a proportion of 0-7 mass%.
Inventors:
YAMASHITA YU (JP)
NAGAKURA TOSHIHIKO (JP)
NAGAKURA TOSHIHIKO (JP)
Application Number:
PCT/JP2023/011422
Publication Date:
November 30, 2023
Filing Date:
March 23, 2023
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
C22B26/12; C22B1/00; C22B7/00; H01M10/54
Domestic Patent References:
| WO2020212587A1 | 2020-10-22 | |||
| WO2022085222A1 | 2022-04-28 | |||
| WO2020013294A1 | 2020-01-16 |
Foreign References:
| JP2021031760A | 2021-03-01 | |||
| JP2013506048A | 2013-02-21 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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