LITHIUM ION ADSORBENTS
    62.
    发明公开

    公开(公告)号:US20230241581A1

    公开(公告)日:2023-08-03

    申请号:US18162965

    申请日:2023-02-01

    摘要: A lithium ion sorbent includes an organosilane-grafted lithium ion sieve. The organosilane-grafted lithium ion sieve is a reaction product of a lithium ion sieve and an organosilane. The lithium ion sieve is either a delithiated orthosilicate or a delithiated metal oxide. The organosilane reagent is of the general formula: R1—(CH2)n—Si—R43 where R1 is an organic moiety containing a functional group selected from an acrylate, methacrylate or vinyl group or their derivatives, R4 is either a hydrolysable alkoxy group or a methyl group, where at least one of the three R4 groups is a hydrolysable alkoxy group and n is 1-3. This lithium ion sorbent is durable and useful for adsorbing lithium from aqueous resources. The lithium ion sorbent can also be used in the manufacture of a composite material where the organosilane-grafted lithium ion sieve is covalently incorporated into a porous crosslinked polymeric support scaffold.