Epoxidation process
US6037484A · kind A · utility
11Cited by
5References
25Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Sep 22, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D301/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The selectivity of an olefin epoxidation process catalyzed by a titanium-containing zeolite is improved by performing the epoxidation in the presence of a non-ionic tertiary amine or tertiary amine oxide additive. For example, when hydrogen peroxide is reacted with propylene in the presence of TS-1 titanium silicalite to form propylene oxide, non-selective ring-opening reactions of the propylene oxide are suppressed when low concentrations of 2,6-lutidine or other substituted pyridines are added to the hydrogen peroxide feed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.