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:
Aug. 13, 2024
Filed:
Aug. 23, 2019
Pacific Industrial Development Corporation, Ann Arbor, MI (US);
Yunkui Li, Ann Arbor, MI (US);
David Shepard, South Lyon, MI (US);
De Gao, Troy, MI (US);
Wei Wu, Ann Arbor, MI (US);
Jeffery Lachapelle, Northville, MI (US);
Geng Zhang, Utsunomiya, JP;
Pacific Industrial Development Corporation, Ann Arbor, MI (US);
Abstract
A method of forming an AEI-type zeolite in a hydrothermal synthesis without the use of hydrogen fluoride (HF) and in the absence of any FAU zeolite Y. A gel composition formed upon using this method includes one or more sources of silica; one or more sources of alumina, one or more organic structure directing agents (OSDA); a source of alkali metal ions; and water. This gel composition is defined by the molar ratios of: SiO/AIO16:1 to 100:1; MO/SiO0.15:1 to 0.30:1; ROH/SiO0.05:1 to 0.20:1; and HO/SiO5:1 to 20:1; wherein M is the alkali metal ion and R is an organic moiety derived from the OSDA. This gel composition, after reacting at a temperature between 135° C. to about 180° C. for 15 hours to 168 hours forms the crystalline AEI-type zeolite having a silica to alumina ratio (SiO:AIO) that is greater than 8:1.