US 12,077,496 B2
Method for separating C8 aromatic hydrocarbon isomer mixture
Huabin Xing, Hangzhou (CN); and Xili Cui, Hangzhou (CN)
Assigned to ZHEJIANG UNIVERSITY, Hangzhou (CN)
Appl. No. 17/911,126
Filed by ZHEJIANG UNIVERSITY, Hangzhou (CN)
PCT Filed Mar. 26, 2021, PCT No. PCT/CN2021/083120
§ 371(c)(1), (2) Date Sep. 12, 2022,
PCT Pub. No. WO2021/197211, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 202010253913.X (CN), filed on Apr. 2, 2020.
Prior Publication US 2023/0141078 A1, May 11, 2023
Int. Cl. C07C 7/12 (2006.01); B01D 53/04 (2006.01); B01J 31/18 (2006.01)
CPC C07C 7/12 (2013.01) [B01D 53/0423 (2013.01); B01J 31/181 (2013.01); B01D 2253/204 (2013.01)] 10 Claims
OG exemplary drawing
 
10. A method of selective adsorption and separation of C8 aromatic hydrocarbon isomers comprising the step of using anion-pillared microporous materials in contact with the C8 aromatic hydrocarbon isomers, wherein the anion-pillared microporous materials are porous materials formed by metal ion M, inorganic anion A and organic ligand L through coordination bonds, with the general formula of [MAL2]n, where n>4 and n is an integer;
wherein the metal ion M″ is Fe2+, Co2+, Ni2+, Cu2+0;
wherein the inorganic anion A is SiF62−, NbOF52−, TaF72−, ZrF62−, TiF62−, GeF62−, SO3CF3−, NbF6−;
wherein the organic ligand L is selected from any of the following:

OG Complex Work Unit Chemistry