Title:
METHOD FOR RECOVERING VALUABLE METALS
Document Type and Number:
WIPO Patent Application WO/2024/048248
Kind Code:
A1
Abstract:
Provided is a method for cost-effectively recovering valuable metals from waste lithium-ion batteries through a pyrometallurgical process. The present invention pertains to a method for recovering valuable metals from waste lithium-ion batteries, the method comprising: an oxidation roasting step S3 in which raw materials including waste lithium-ion batteries are subjected to an oxidation roasting treatment; and a reduction step S4 in which the obtained oxidation roasted product is reduced in the presence of carbon. In the oxidation roasting step S3, calcium carbonate is charged into a furnace together with the raw materials including waste lithium-ion batteries to control the treatment temperature of the oxidation roasting treatment.
Inventors:
NAGAKURA TOSHIHIKO (JP)
YABE TAKAYUKI (JP)
YABE TAKAYUKI (JP)
Application Number:
PCT/JP2023/029292
Publication Date:
March 07, 2024
Filing Date:
August 10, 2023
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
C22B7/00; C22B1/02; C22B5/10; H01M10/54
Domestic Patent References:
| WO2020013294A1 | 2020-01-16 |
Foreign References:
| JP2021161454A | 2021-10-11 | |||
| JP2012229481A | 2012-11-22 | |||
| JP2021161453A | 2021-10-11 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
Download PDF:
Previous Patent: METHOD FOR RECOVERING VALUABLE METALS
Next Patent: METHOD FOR RECOVERING VALUABLE METAL
Next Patent: METHOD FOR RECOVERING VALUABLE METAL