The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 16, 2024
Filed:
Jan. 14, 2021
Applicant:
Korea University Research and Business Foundation, Seoul, KR;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 71/02 (2006.01); B01D 67/00 (2006.01); B01D 69/10 (2006.01); C07B 63/00 (2006.01); C07C 7/14 (2006.01); C07C 7/144 (2006.01); C07C 15/08 (2006.01);
U.S. Cl.
CPC ...
B01D 71/0281 (2022.08); B01D 67/00411 (2022.08); B01D 69/107 (2022.08); B01D 69/108 (2022.08); C07B 63/00 (2013.01); C07C 7/144 (2013.01); B01D 2323/081 (2022.08); B01D 2323/2181 (2022.08); C07C 15/08 (2013.01);
Abstract
The present invention relates to a method of controlling a defect structure in an MFI zeolite membrane and a method of separating xylene isomers using the MFI zeolite membrane produced by the method, and more particularly, to a method of controlling a defect structure in an MFI zeolite membrane that improves the performance of separating a xylene isomer by reducing the amount and size of defects formed in the MFI membrane structure when removing organic-structure-directing agents in the membrane through calcination at a low temperature using ozone.