Heterogeneous epoxidation catalyst
US6114552A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1999 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Sep 28, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/0238
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Highly active and selective epoxidation catalysts are prepared by combining high surface area silica support or the like, having surface area greater than 1100 m.sup.2 /g, with a titanium source. The titanium source is a non-oxygenated hydrocarbon solution of a titanium halide or a vapor stream of titanium tetrachloride. The impregnated support it then calcined at an elevated temperature (preferably, in a substantially oxygen-free atmosphere), and, optionally, reacted with water and/or silylated. The resulting materials are highly active heterogeneous epoxidation catalysts for the reaction of olefins to with organic hydroperoxides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.