US 12,434,204 B2
Membranes containing crown ether-containing polymers
Hasmukh A. Patel, Katy, TX (US); Sipei Li, Cambridge, MA (US); Yang Liu, Belmont, MA (US); and Junyan Yang, Acton, MA (US)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Dec. 14, 2021, as Appl. No. 17/550,069.
Prior Publication US 2023/0182090 A1, Jun. 15, 2023
Int. Cl. B01D 53/02 (2006.01); B01D 53/22 (2006.01); B01D 67/00 (2006.01); B01D 71/64 (2006.01); B01D 71/82 (2006.01); B01D 69/02 (2006.01)
CPC B01D 71/64 (2013.01) [B01D 53/228 (2013.01); B01D 67/0093 (2013.01); B01D 71/82 (2013.01); B01D 69/02 (2013.01); B01D 2257/504 (2013.01); B01D 2323/36 (2013.01); B01D 2325/20 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A membrane comprising:
a polymer comprising crown ether macrocycle monomer units; and
a guest compound comprising at least one functional group capable of binding to at least one of the crown ether macrocycle monomer units, wherein the guest compound is an organic compound comprising one or more carboxylate groups or an inorganic compound comprising a metal salt.