Title:
METHOD FOR TREATING SULFIDE
Document Type and Number:
WIPO Patent Application WO/2022/039039
Kind Code:
A1
Abstract:
Provided is a method for treating sulfide suitable for obtaining nickel and/or cobalt from sulfide containing copper and nickel and/or cobalt. A method for treating sulfide containing copper and nickel and/or cobalt, the method comprising: a pulverizing step for obtaining pulverized sulfide having a grain size of 800 μm or less by subjecting the sulfide to pulverization treatment; and a leaching step for obtaining a leachate by subjecting the pulverized sulfide to a leaching treatment with acid under conditions in which a sulfating agent is also present. For example, the sulfide to be treated would be generated by adding and sulfating a sulfating agent to a melt obtained by reduction heat melting a spent lithium-ion battery.
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Inventors:
TAKENOUCHI HIROSHI (JP)
HEGURI SHIN-ICHI (JP)
ASANO SATOSHI (JP)
SHOUJI HIROFUMI (JP)
HEGURI SHIN-ICHI (JP)
ASANO SATOSHI (JP)
SHOUJI HIROFUMI (JP)
Application Number:
PCT/JP2021/029115
Publication Date:
February 24, 2022
Filing Date:
August 05, 2021
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
B09B3/00; C22B3/06; C22B3/08; C22B3/10; C22B3/44; C22B3/46; C22B7/00; C22B23/00; H01M10/54
Foreign References:
JPS56134505A | 1981-10-21 | |||
JP2020029586A | 2020-02-27 | |||
JP2012107264A | 2012-06-07 | |||
JP2012172169A | 2012-09-10 | |||
JPS63259033A | 1988-10-26 |
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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