Direct epoxidation process
US7138535B1 · kind B1 · utility
8Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2005 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Jul 14, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D301/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention is a process for epoxidizing an olefin with hydrogen and oxygen in the presence of a catalyst comprising a noble metal and a titanium or vanadium zeolite in a solvent mixture comprising water, methanol, and a C3–C6 aliphatic ketone. This process surprisingly gives significantly reduced by-product glycol and glycol ethers formed by the unwanted ring-opening of epoxides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.