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:
Apr. 05, 2022
Filed:
Jun. 14, 2018
Wanhua Chemical Group Co., Ltd., Shandong, CN;
Lei Wang, Shandong, CN;
Tongji Wang, Shandong, CN;
Fei Ye, Shandong, CN;
Lichao Yang, Shandong, CN;
Guangquan Yi, Shandong, CN;
Jiaoying Cui, Shandong, CN;
Naibo Chu, Shandong, CN;
Yuan Li, Shandong, CN;
Weiqi Hua, Shandong, CN;
Abstract
A preparation method for a propylene epoxidation catalyst: pre-hydrolyzing a silicon source, adding a titanium source and reacting to form a sol, atomizing the sol and then spraying it into liquid ammonia for molding, implementing pore broadening, and performing drying, calcination, and silanization treatment to obtain a Ti—SiOcomposite oxide catalyst. The present catalyst can be used in the chemical process of preparing propylene oxide by epoxidation of propylene, the average propylene oxide selectivity being up to 97.5%, having prospects for industrial application.