Preparation method for propylene epoxidation catalyst, and application thereof
US11291985B2 · kind B2 · utility
1Cited by
5References
22Claims
0Family size
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Key dates
| Filing date | Jun 14, 2018 |
| Grant date | Apr 5, 2022 |
| Priority date | — |
| Expiry date | Oct 27, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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—SiO2 composite 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.