US 11,794,163 B1
Metal-organic framework for adsorptive separation of acetylene/ethylene mixture and preparation method therefor
Fengting Li, Shanghai (CN); Yifan Gu, Shanghai (CN); Hengcong Huang, Shanghai (CN); and Ying Wang, Shanghai (CN)
Assigned to TONGJI UNIVERSITY, Shanghai (CN)
Filed by TONGJI UNIVERSITY, Shanghai (CN)
Filed on Jan. 5, 2023, as Appl. No. 18/93,407.
Claims priority of application No. 202210649033.3 (CN), filed on Jun. 9, 2022.
Int. Cl. B01J 20/22 (2006.01); B01D 53/04 (2006.01); C07C 7/12 (2006.01); B01J 20/30 (2006.01); B01J 20/281 (2006.01); B01J 20/28 (2006.01); C07F 15/04 (2006.01)
CPC B01J 20/226 (2013.01) [B01D 53/0423 (2013.01); B01J 20/281 (2013.01); B01J 20/28052 (2013.01); B01J 20/3085 (2013.01); B01J 20/3092 (2013.01); C07C 7/12 (2013.01); C07F 15/045 (2013.01); B01D 2253/204 (2013.01); B01D 2257/7022 (2013.01); B01D 2259/4009 (2013.01); B01J 2220/52 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A metal-organic framework material for adsorptive separation of acetylene/ethylene mixture, wherein the metal-organic framework material is named TJE-2 with a chemical formula of [Ni(pyc)3(apyz)2]n,
wherein Ni represents nickel as a metal center, pyc represents an organic ligand 1H-pyrazole-4-carboxylic acid (structural formula:

OG Complex Work Unit Chemistry
and apyz represents an organic ligand 2-aminopyrazine (structural formula:

OG Complex Work Unit Chemistry
and
wherein the metal-organic framework material is 6-coordinated without forming open metal sites, each metal center being coordinated with:
one N atom from a first 1H-pyrazole-4-carboyxlic acid ligand,
one N atom from a second 1H-pyrazole-4-carboyxlic acid ligand,
two O atoms from a third 1H-pyrazole-4-carboyxlic acid ligand,
one N atom from a first 2-aminopyrazine ligand, and
one N atom from a second 2-aminopyrazine ligand.