Title:
LITHIUM ADSORPTION MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2024/011796
Kind Code:
A1
Abstract:
Provided in the present invention is a lithium adsorption material, which is a hydroxyl synthetic salt with a porous structure and a molecular formula of DG3(TO4)2(OH)6 or DG3(TO4)2(OH,H2O)6, where D represents a cation with a coordination number greater than or equal to 9, G represents an element forming octahedral coordination, and T represents an element forming tetrahedral coordination. A preparation method therefor comprises: preparing a mixed inorganic salt solution, which contains a cation D, a cation corresponding to an element G, and an oxygen-containing acid radical ion containing an element T; adding a pore-foaming agent to the mixed inorganic salt solution, and mixing same to obtain a reaction solution; placing the reaction solution into a reaction vessel for a hydrothermal reaction, and then sequentially performing filtering, washing and drying treatments to obtain a hydroxyl synthetic salt with a porous structure, thereby obtaining a lithium adsorption material. The lithium adsorption material provided in the present invention has the advantages of a high adsorption capacity, long cycle life, etc., and does not adsorb a borate; and a lithium source is not needed during the synthesis process thereof, and the advantages of mild preparation conditions, simple and feasible process flow, low equipment cost requirements and no pollution are obtained.
Inventors:
LI JUN (CN)
LUO QINGLONG (CN)
WU ZHIJIAN (CN)
LIU ZHONG (CN)
LUO QINGLONG (CN)
WU ZHIJIAN (CN)
LIU ZHONG (CN)
Application Number:
PCT/CN2022/130537
Publication Date:
January 18, 2024
Filing Date:
November 08, 2022
Export Citation:
Assignee:
QINGHAI INST OF SALT LAKES THE CHINESE ACADEMY OF SCIENCES (CN)
International Classes:
B01J20/02; B01J20/28; B01J20/30; C22B7/00; C22B26/12
Foreign References:
| CN115253999A | 2022-11-01 | |||
| CN113731371A | 2021-12-03 | |||
| CN114272914A | 2022-04-05 | |||
| CN109317087A | 2019-02-12 | |||
| JP2018075566A | 2018-05-17 | |||
| US20180345244A1 | 2018-12-06 | |||
| JP2015020090A | 2015-02-02 |
Other References:
LUO, QINGLONG ET AL.: "Extraction of lithium from salt lake brines by granulated adsorbents", COLLOIDS AND SURFACES A:PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 28 July 2021 (2021-07-28), pages 2, XP086796080, ISSN: 0927-7757, DOI: 10.1016/j.colsurfa.2021.127256
Attorney, Agent or Firm:
MING & YUE INTELLECTUAL PROPERTY LAW FIRM (CN)
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