Title:
METHOD FOR REMOVING ALUMINUM AND METHOD FOR RECOVERING METALS
Document Type and Number:
WIPO Patent Application WO/2024/014520
Kind Code:
A1
Abstract:
Provided are a method for removing aluminum which can effectively remove aluminum, and a method for recovering metals. A method for removing aluminum includes a leaching step of bringing a raw material obtained from lithium ion battery waste, the raw material having battery powder containing at least aluminum and nickel and/or cobalt, into contact with an acidic leaching solution to leach the battery powder to obtain a leached solution, wherein a molar ratio of fluorine to aluminum (F/Al molar ratio) of the raw material is 1.3 or more, and wherein, in the leaching step, the acidic leaching solution contains calcium and fluorine, aluminum is precipitated with calcium and fluorine, and the resulting precipitate is contained in a leached residue.
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Inventors:
HIGUCHI NAOKI (JP)
SHIKADA KEI (JP)
SHIKADA KEI (JP)
Application Number:
PCT/JP2023/025954
Publication Date:
January 18, 2024
Filing Date:
July 13, 2023
Export Citation:
Assignee:
JX METALS CORP (JP)
International Classes:
C22B7/00; C22B3/00; C22B21/00; C22B26/12; H01M10/54
Foreign References:
| CA3173753A1 | 2021-10-28 | |||
| EP3950978A1 | 2022-02-09 | |||
| CN110373545B | 2020-11-03 | |||
| JP2014162982A | 2014-09-08 | |||
| CA3200605A1 | 2022-06-23 | |||
| JP2014162982A | 2014-09-08 | |||
| JP2017166028A | 2017-09-21 |
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
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