Catalyst carriers
US6831037B2 · kind B2 · utility
28Cited by
21References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2002 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Feb 14, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/90
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The selectivity and activity of a silver-based olefin epoxidation catalyst is found to be a function of the pore size distribution in the alumina carrier on which it is deposited. Specifically it is found advantageous to provide a carrier which has a minimum of very large pores, (greater than 10 micrometers) and a water absorption of 35 to 55% and a surface area of at least 1.0 m2/g. A method of making such carriers is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.