US 11,702,754 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., Vancouver (CA)
Filed by Mangrove Water Technologies LTD., Vancouver (CA)
Filed on Aug. 9, 2022, as Appl. No. 17/883,767.
Application 17/883,767 is a division of application No. 17/416,413, granted, now 11,519,085, 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 2022/0380914 A1, Dec. 1, 2022
Int. Cl. C25B 11/031 (2021.01); C25B 9/23 (2021.01); C25B 11/032 (2021.01); C25B 11/052 (2021.01); C25B 9/21 (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); C25C 1/02 (2006.01); C25C 7/02 (2006.01); C25C 7/04 (2006.01); C25B 11/048 (2021.01); C25B 11/046 (2021.01); C25B 9/19 (2021.01); C25B 11/053 (2021.01); C25B 13/00 (2006.01); C02F 101/10 (2006.01); C02F 103/08 (2006.01); C02F 103/10 (2006.01)
CPC C25B 9/23 (2021.01) [B01D 61/46 (2013.01); 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 1/4693 (2013.01); C02F 1/46109 (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)] 22 Claims
OG exemplary drawing
 
1. A gas diffusion electrode for use in a membrane electrolysis cell, the gas diffusion electrode comprising:
a diffusion layer configured to diffuse a gas comprising oxygen;
a first catalyst layer disposed on a surface of the diffusion layer, the first catalyst layer having a hydrophilicity greater than that of the diffusion layer and being capable of transporting negative ions; and
an anion exchange membrane disposed on a surface of the first catalyst layer, the anion exchange membrane being configured to exchange ions from the first catalyst layer to an opposed surface of the anion exchange membrane.