METHOD FOR PREPARING TWO-DIMENSIONAL LAMELLAR LI4SIO4 SORBENT USING ATTAPULGITE AND WASTE LITHIUM BATTERIES, AND USE THEREOF
World Intellectual Property Organization Patent
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Abstract
The present invention belongs to the technical fields of waste lithium battery resource utilization and CO2 sorbent preparation, and specifically relates to a method for preparing a two-dimensional lamellar Li4 SiO4 sorbent using attapulgite and waste lithium batteries, and a use thereof. The method comprises the following steps: (1) carrying out acid treatment using attapulgite as a silicon source, removing most of metal ions in the attapulgite framework while retaining unique Si-O tetrahedral structures to obtain SiO2; (2) recovering Li2CO3 from the waste lithium batteries by using waste lithium battery positive electrode materials as a lithium source and utilizing waste biomass to perform carbothermic reduction; and (3) converting one-dimensional rod-shaped SiO2 and Li2CO3 into two-dimensional lamellar lithium silicate by using a microwave hydrothermal method. In the present invention, cheap precursors (a Si source and a Li source) synthesize a highly efficient Li4SiO4 sorbent; same has a larger specific surface area, and CO2 capture can be stably and efficiently carried out, thus achieving a trash-to-treasure transformation.
First Claim
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
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Patent Owner(s)
| Patent Owner | Address |
|---|---|
| CHANGZHOU UNIVERSITY | CNNO 21 GEHU MIDDLE ROAD WUJIN DISTRICT CHANGZHOU |
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Inventor(s)
| Inventor Name | Address |
|---|---|
| ZHANG HONGYI | ROOM 506 BUILDING 1 EMERGING INDUSTRY DEMONSTRATION BASE HANCHENG CITY WEINAN CITY SHAANXI PROVINCE 715499 WEINAN CITY SHAANXI PROVINCE 715499 |
| YAO CHAO | SHENZHEN GUANGDONG 518040 |
| LU GUANGHUI | AREA A 3RD FLOOR NO 3 FACTORY BUILDING JIA'AN SCIENCE AND TECHNOLOGY PARK LIUXIAN 1ST ROAD XIN'AN 67 DISTRICT BAO'AN DISTRICT SHENZHEN GUANGDONG 518000 SHENZHEN CITY GUANGDONG PROVINCE 518000 |
| WU ZHENFEI | 318000 JIAZHEN DONGSHAN INDUSTRIAL COMMUNITY JIAOJIANG DISTRICT TAIZHOU CITY ZHEJIANG PROVINCE TAIZHOU CITY ZHEJIANG PROVINCE 318000 |
| GUI HAOGUAN | 213164 ROOM 704 BLOCK D TIANRUN SCIENCE AND TECHNOLOGY BUILDING CHANGZHOU SCIENCE AND EDUCATION CITY NO 18 CHANGWU MIDDLE ROAD WUJIN DISTRICT CHANGZHOU CITY JIANGSU PROVINCE CHANGZHOU CITY JIANGSU PROVINCE 213164 |
| LI XIAZHANG | 211799 SOUTH SIDE OF KE'ER ROAD YANGZHI ROAD GUSANG ENTREPRENEURSHIP PARK XUYI COUNTY HUAI'AN CITY JIANGSU PROVINCE HUAIAN CITY JIANGSU PROVINCE 211799 |
| ZUO SHIXIANG | 213164 ROOM 704 BLOCK D TIANRUN SCIENCE AND TECHNOLOGY BUILDING CHANGZHOU SCIENCE AND EDUCATION CITY NO 18 CHANGWU MIDDLE ROAD WUJIN DISTRICT CHANGZHOU CITY JIANGSU PROVINCE CHANGZHOU CITY JIANGSU PROVINCE 213164 |
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