US 12,012,423 B1
Multivariate carboxylate derivatized phenyl-based metal-organic frameworks
Gregory W. Peterson, Belcamp, MD (US); and Thomas H. Epps, III, Newark, DE (US)
Assigned to The United States of America as Represented by the Secretary of the Army, Washington, DC (US)
Filed by U.S. Army Combat Capabilities Development Command, Chemical Biological Center, Apg, MD (US)
Filed on Sep. 30, 2022, as Appl. No. 17/957,234.
Application 17/957,234 is a division of application No. 16/709,258, filed on Dec. 10, 2019, granted, now 11,459,342.
Int. Cl. C07F 1/08 (2006.01); B01D 53/58 (2006.01); B01D 53/62 (2006.01); B01D 67/00 (2006.01); B01D 69/12 (2006.01); B01D 71/02 (2006.01); B01D 71/82 (2006.01)
CPC C07F 1/08 (2013.01) [B01D 53/58 (2013.01); B01D 53/62 (2013.01); B01D 67/0079 (2013.01); B01D 69/12 (2013.01); B01D 71/022 (2013.01); B01D 71/82 (2013.01); B01D 2257/406 (2013.01); B01D 2257/504 (2013.01); B01D 2257/93 (2013.01); B01D 2258/0283 (2013.01); B01D 2323/39 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A process of selectively separating a constituent from a gas mixture, comprising:
exposing the gas mixture containing the constituent to a composition consisting essentially of the structure of formula I:
[R—Ar—(COOH)2]x[Ar—(COOH)3]2-xM3  (I)
where M is Cu, Co, Fe, Zn, Cd, Ni, Mn, or Pt; R is a bromine, a primary amine, C1-C4 alkyl secondary amine, C1-C4 alkyl oxy, Br—(C1-C4 alkyl), NO2—(C1-C4 alkyl), a mercaptan, and reaction products of any of the aforementioned with acyl chlorides of the formulas: CH3(CH2)mC(O)Cl, or CH3(CH(C1-C4 alkyl)CH2)mC(O)Cl, or CH3(CH2)m-Ph-(CH2)pC(O)Cl, in which Ph is a C6 phenyl group or C6 phenyl group with one or more hydrogens replaced with F, C1-C4 fluoroalkyl, or C1-C4 perfluoroalkyl; m is independently in each occurrence an integer of 0 to 12 inclusive; p is an integer of 0 to 36 inclusive, to form an amide, a thioamide, or an ester; Ar is a 1,3,5-modified phenyl group, and x is a non-integer value of greater than 0 and less than 1.4; and
collecting a flue gas preferentially depleted in the constituent after contact with the composition.