US 12,168,831 B2
Li recovery processes and onsite chemical production for Li recovery processes
Saad Dara, Vancouver (CA); and Beniamin Zahiri, Vancouver (CA)
Assigned to Mangrove Water Technologies LTD., (CA)
Filed by Mangrove Water Technologies LTD., Vancouver (CA)
Filed on Jul. 10, 2023, as Appl. No. 18/220,021.
Application 18/220,021 is a continuation of application No. 18/130,190, filed on Apr. 3, 2023.
Application 18/130,190 is a continuation of application No. 17/883,983, filed on Aug. 9, 2022.
Application 17/883,983 is a continuation of application No. 17/416,413, granted, now 11,634,826, issued on Apr. 25, 1925, previously published as PCT/IB2019/001346, filed on Dec. 19, 2019.
Claims priority of provisional application 62/907,486, filed on Sep. 27, 2019.
Claims priority of provisional application 62/784,324, filed on Dec. 21, 2018.
Prior Publication US 2023/0349055 A1, Nov. 2, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C25B 9/00 (2021.01); B01D 61/46 (2006.01); B01D 69/02 (2006.01); C01D 15/02 (2006.01); C01D 15/04 (2006.01); C01D 15/08 (2006.01); C01F 5/24 (2006.01); C01F 11/18 (2006.01); C02F 1/461 (2023.01); C02F 1/469 (2023.01); C25B 1/16 (2006.01); C25B 9/19 (2021.01); C25B 9/21 (2021.01); C25B 9/23 (2021.01); C25B 11/032 (2021.01); C25B 11/046 (2021.01); C25B 11/048 (2021.01); C25B 11/052 (2021.01); C25B 11/053 (2021.01); C25B 13/00 (2006.01); C25C 1/02 (2006.01); C25C 7/02 (2006.01); C25C 7/04 (2006.01); C02F 101/10 (2006.01); C02F 103/08 (2006.01); C02F 103/10 (2006.01)
CPC C25B 9/23 (2021.01) [B01D 61/463 (2022.08); B01D 69/02 (2013.01); C01D 15/02 (2013.01); C01D 15/04 (2013.01); C01D 15/08 (2013.01); C01F 5/24 (2013.01); C01F 11/181 (2013.01); C02F 1/46109 (2013.01); C02F 1/4693 (2013.01); C25B 1/16 (2013.01); C25B 9/19 (2021.01); C25B 9/21 (2021.01); C25B 11/032 (2021.01); C25B 11/046 (2021.01); C25B 11/048 (2021.01); C25B 11/052 (2021.01); C25B 11/053 (2021.01); C25B 13/00 (2013.01); C25C 1/02 (2013.01); C25C 7/02 (2013.01); C25C 7/04 (2013.01); B01D 2313/345 (2013.01); B01D 2325/10 (2013.01); B01D 2325/36 (2013.01); B01D 2325/38 (2013.01); B01D 2325/42 (2013.01); C02F 2001/46142 (2013.01); C02F 2001/46166 (2013.01); C02F 2101/10 (2013.01); C02F 2103/08 (2013.01); C02F 2103/10 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A process for recovering lithium from a lithium source, the process comprising the steps of:
(a) precipitating at least one of calcium and magnesium from the lithium source in preparing a salt-containing solution comprising lithium ions and negative salt ions;
(b) receiving, in a membrane electrolysis cell, the salt-containing solution and a gas comprising O2; and
(c) delivering, from the membrane electrolysis cell, recovered lithium and reagent materials used in the process for recovering lithium,
wherein the lithium source comprises a brine, the salt-containing solution comprises LiCI, the recovered lithium comprises LiOH, and the reagent materials used in the process for recovering lithium comprise HCI.