Title:
METHOD FOR PRODUCING NICKEL SULFATE SOLUTION FOR SECONDARY BATTERY FROM NICKEL CATHODE
Document Type and Number:
WIPO Patent Application WO/2023/243832
Kind Code:
A1
Abstract:
The present invention provides a method for producing a nickel sulfate solution, the method comprising: a leaching step for leaching a nickel cathode in sulfuric acid at high temperature and high pressure; a neutralization step for neutralizing a leachate from the leaching step; and a filtration step for filtering a neutralized solution obtained from the neutralization step, and thereby producing a filtrate.
Inventors:
CHOI HEON SIK (KR)
JOO JAE HOON (KR)
LEE TAE KYUNG (KR)
JOO JAE HOON (KR)
LEE TAE KYUNG (KR)
Application Number:
PCT/KR2023/004406
Publication Date:
December 21, 2023
Filing Date:
March 31, 2023
Export Citation:
Assignee:
KOREA ZINC CO LTD (KR)
KEMCO (KR)
KEMCO (KR)
International Classes:
C01G53/10; C22B3/00; C22B3/08; H01M10/54
Domestic Patent References:
| WO2019090389A1 | 2019-05-16 |
Foreign References:
| JP2016003360A | 2016-01-12 | |||
| KR20210152270A | 2021-12-15 | |||
| KR101191042B1 | 2012-10-15 | |||
| KR20200078199A | 2020-07-01 |
Attorney, Agent or Firm:
CHANG, Duck Soon et al. (KR)
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