Title:
METHOD FOR PRODUCING LITHIUM HYDROXIDE
Document Type and Number:
WIPO Patent Application WO/2022/097715
Kind Code:
A1
Abstract:
The present invention provides a method by which high-purity lithium hydroxide is efficiently produced with less energy, wherein only Li ions are recovered into a recovery liquid, with use of an Li permselective membrane, from a lithium ion extract liquid that is extracted from a processed member of a lithium secondary battery, and lithium hydroxide is produced from the recovery liquid.
Inventors:
MORI DAISUKE (JP)
MACHIDA MASASHI (JP)
UTSUNO FUTOSHI (JP)
HOSHINO TSUYOSHI (JP)
MACHIDA MASASHI (JP)
UTSUNO FUTOSHI (JP)
HOSHINO TSUYOSHI (JP)
Application Number:
PCT/JP2021/040755
Publication Date:
May 12, 2022
Filing Date:
November 05, 2021
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C01D15/02; B01D9/02; B01D61/44; C22B3/12; C22B3/22; C22B7/00; C22B26/12; H01M10/54
Domestic Patent References:
| WO2020171009A1 | 2020-08-27 |
Foreign References:
| JP2019081953A | 2019-05-30 | |||
| JP2018528150A | 2018-09-27 | |||
| JP2005197149A | 2005-07-21 | |||
| JP2012200666A | 2012-10-22 | |||
| JP2011032151A | 2011-02-17 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
Download PDF:
Previous Patent: RESIN SEALING APPARATUS
Next Patent: METHOD FOR PRODUCING REVERSIBLY IMMORTALIZED CELL
Next Patent: METHOD FOR PRODUCING REVERSIBLY IMMORTALIZED CELL