Inorganic oxide extrudates
US7855304B1 · kind B1 · utility
1Cited by
24References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2010 |
| Grant date | Dec 21, 2010 |
| Priority date | — |
| Expiry date | Sep 16, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/96
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An extrudate comprising an inorganic oxide and a comb-branched polymer is disclosed. The calcined extrudates are useful catalysts or catalyst supports. A palladium-gold catalyst prepared with a calcined titania extrudate of the invention is useful in making vinyl acetate from ethylene, acetic acid, and oxygen or oxygen-containing gas. A calcined transition metal zeolite extrudate of the invention is used as a catalyst in oxidizing organic compounds with hydrogen peroxide. Incorporation of a comb-branched polymer improves the mechanical properties of inorganic oxide extrudates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.