	US 11,918,971 B1
	Lithium adsorbent and preparation method therefor
Xiaokang Kou, Xi'an (CN); Suidang Li, Xi'an (CN); Pengwei Jiao, Xi'an (CN); and Qiong Liu, Xi'an (CN)
Assigned to SUNRESIN NEW MATERIALS CO. LTD., Xi'an (CN)
Filed by SUNRESIN NEW MATERIALS CO.LTD., Shaanxi (CN)
Filed on Aug. 22, 2023, as Appl. No. 18/236,609.
Claims priority of application No. 202311013817.8 (CN), filed on Aug. 11, 2023.
Int. Cl. B01J 20/04 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01)

CPC B01J 20/043 (2013.01) [B01J 20/28004 (2013.01); B01J 20/28061 (2013.01); B01J 20/28064 (2013.01); B01J 20/28073 (2013.01); B01J 20/2808 (2013.01); B01J 20/28083 (2013.01); B01J 20/3028 (2013.01)]

13 Claims

1. A method for preparing a lithium adsorbent, comprising the steps of:

uniformly mixing raw materials comprising a lithium compound, an aluminum compound, a pore-forming agent, a hydrophilic binder and water, and carrying out a reaction at a temperature ranging from 60° C. to 100° C. for 2 h to 4 h so that the lithium compound reacts with the aluminum compound to form an aluminum-based lithium adsorbent active material; wherein a ratio of a total weight of the lithium compound, the aluminum compound and the hydrophilic binder to a weight of the pore-forming agent is 100:(0.6 to 20); and

curing the hydrophilic binder in the raw material mixture, and performing granulating and drying to obtain the lithium adsorbent.