Title:
LITHIUM-ION ADSORBENT AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/041057
Kind Code:
A1
Abstract:
A lithium-ion adsorbent and a method for preparing same. The lithium-ion adsorbent comprises a substance having a chemical formula of LiCl·2Al(OH) 3·nH 2O, where n is an integer from 1 to 3. The method comprises mixing a lithium salt solution and a meta aluminate solution, and then subjecting same to first stirring, first aging, and first filtering to obtain a precursor; mixing the precursor with an acid, wherein the addition amount of the acid is controlled such that the pH value of the mixed material is 6.0-7.0, and then subjecting same to second stirring, second aging, and second filtering to obtain a second filtered filtrate; and subjecting same to 1 to 3 rounds of a pre-desorption-filtration cycle treatment.
Inventors:
WANG MINGHAO (CN)
LIAN JUNLAN (CN)
LIN HONGYE (CN)
LIAN JUNLAN (CN)
LIN HONGYE (CN)
Application Number:
PCT/CN2022/119395
Publication Date:
March 23, 2023
Filing Date:
September 16, 2022
Export Citation:
Assignee:
BYD CO LTD (CN)
International Classes:
B01J20/04; B01J20/08; C22B26/12
Foreign References:
| CN110102273A | 2019-08-09 | |||
| CN112808226A | 2021-05-18 | |||
| CN107930575A | 2018-04-20 | |||
| JP2012200653A | 2012-10-22 | |||
| US20170333867A1 | 2017-11-23 |
Attorney, Agent or Firm:
SHENZHEN HUISHI PATENT AGENT CO., LTD. (CN)
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