US 11,806,641 B2
Lithium extraction with coated ion exchange particles
David Henry Snydacker, San Francisco, CA (US)
Assigned to LILAC SOLUTIONS, INC., Oakland, CA (US)
Filed by Lilac Solutions, Inc., Oakland, CA (US)
Filed on May 29, 2020, as Appl. No. 16/888,517.
Application 16/888,517 is a continuation of application No. 16/163,887, filed on Oct. 18, 2018, granted, now 10,695,694.
Application 16/163,887 is a continuation of application No. 15/811,415, filed on Nov. 13, 2017, granted, now 10,150,056, issued on Dec. 11, 2018.
Claims priority of provisional application 62/421,934, filed on Nov. 14, 2016.
Prior Publication US 2020/0289958 A1, Sep. 17, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 15/00 (2006.01); B01D 15/36 (2006.01); B01J 20/282 (2006.01); B01J 39/02 (2006.01); C22B 26/12 (2006.01); B01J 47/016 (2017.01); B01J 47/018 (2017.01); C22B 3/42 (2006.01); B01J 39/10 (2006.01)
CPC B01D 15/361 (2013.01) [B01D 15/362 (2013.01); B01J 20/282 (2013.01); B01J 39/02 (2013.01); B01J 39/10 (2013.01); B01J 47/016 (2017.01); B01J 47/018 (2017.01); C22B 3/42 (2013.01); C22B 26/12 (2013.01)] 18 Claims
 
1. A method of extracting lithium from a liquid resource, comprising:
a) contacting a coated ion exchange particle with a liquid resource to produce a lithiated coated ion exchange particle, wherein the coated ion exchange particle comprises an ion exchange material and a coating material; and
b) treating the lithiated coated ion exchange particle with an acid solution to produce a salt solution comprising lithium ions,
wherein the ion exchange material comprises an oxide selected from Li4Mn5O12, Li4Ti5O12, Li2TiO3, Li2MnO3, Li2SnO3, LiMn2O4, Li1.6Mn1.6O4, LiAlO2, LiCuO2, LiTiO2, Li4TiO4, Li7Ti11O24, Li3VO4, Li2Si3O7, SnO2·xSb2O5·yH2O, TiO2·xSb2O5·yH2O, solid solutions thereof, or combinations thereof wherein x is from 0.1-10; and y is from 0.1-10; and
wherein the coating material comprises an oxide different from the oxide of the ion exchange material, a polymer, or combinations thereof.