Title:
PREPARATION METHOD FOR POROUS SPINNING COMPOSITE MATERIAL, AND APPLICATION THEREOF IN LITHIUM EXTRACTION
Document Type and Number:
WIPO Patent Application WO/2022/134221
Kind Code:
A1
Abstract:
Disclosed in the present invention are a preparation method for a porous spinning composite material, and an application thereof in lithium extraction. The method comprises the following steps: (1) mixing a high molecular polymer with an organic solvent, heating and stirring, fully dissolving the polymer and the organic solvent, and standing for defoaming; (2) adding lithium ion sieve powder and a water-soluble porogen into the mixed solution, and fully stirring and uniformly mixing; (3) spraying the mixed solution into a coagulating bath by means of a wet spinning device for phase inversion molding; (4) drafting and washing, and drying and curing to obtain a porous spinning composite adsorption material. The obtained porous spinning composite adsorption material is applied to extraction of lithium in liquid lithium ore. In the present invention, the problems of poor fluidity and cycling stability of a powder material are effectively solved, and the adsorption rate and adsorption capacity of the powder material are greatly improved relative to granular and rod-shaped adsorption materials. Therefore, the method has good application prospects in development and utilization of lithium resources in salt lake brine, underground brine, geothermal water and the like.
Inventors:
DENG TIANLONG (CN)
ZHAO KAIYU (CN)
YU XIAOPING (CN)
LI MINGLI (CN)
DUO JI (CN)
GUO YAFEI (CN)
ZHAO KAIYU (CN)
YU XIAOPING (CN)
LI MINGLI (CN)
DUO JI (CN)
GUO YAFEI (CN)
Application Number:
PCT/CN2021/070555
Publication Date:
June 30, 2022
Filing Date:
January 07, 2021
Export Citation:
Assignee:
TIANJIN UNIV OF SCIENCE AND TECHNOLOGY (CN)
CENTRAL LABORATORY OF GEOLOGICAL MINERAL EXPLOR AND DEVELOPMENT BUREAU OF TIBET AUTONOMOUS REGION (CN)
CENTRAL LABORATORY OF GEOLOGICAL MINERAL EXPLOR AND DEVELOPMENT BUREAU OF TIBET AUTONOMOUS REGION (CN)
International Classes:
B01J20/26; B01J20/28; B01J20/30; C22B3/24; C22B26/12
Foreign References:
| CN109225121A | 2019-01-18 | |||
| CN110090614A | 2019-08-06 | |||
| US20190275473A1 | 2019-09-12 | |||
| CN101898113A | 2010-12-01 | |||
| CN106902781A | 2017-06-30 | |||
| CN102211012A | 2011-10-12 | |||
| CN109225121A | 2019-01-18 |
Other References:
ACS APPLIED MATERIALS & INTERFACES, vol. 11, no. 29, 2019, pages 26364 - 26372
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, vol. 70, 2019, pages 124 - 135
See also references of EP 4209266A4
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, vol. 70, 2019, pages 124 - 135
See also references of EP 4209266A4
Attorney, Agent or Firm:
TIANJIN WISELY INTELLECTUAL PROPERTY AGENCY LTD. et al. (CN)
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