METHOD FOR PREPARING TWO-DIMENSIONAL LAMELLAR LI4SIO4 SORBENT USING ATTAPULGITE AND WASTE LITHIUM BATTERIES, AND USE THEREOF

World Intellectual Property Organization Patent

APP PUB NO WO-2024170011-A1
SERIAL NO

PCTCN2024090547

Stats

Importance

Loading Importance Indicators... loading....

Abstract

See full text

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.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
CHANGZHOU UNIVERSITYCNNO 21 GEHU MIDDLE ROAD WUJIN DISTRICT CHANGZHOU

International Classification(s)

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

Cited Art Landscape

Load Citation