Catalyst and catalyst carrier
US9073035B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2012 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Mar 18, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The carrier of the present invention includes at least 85 wt percent alpha alumina, at least 0.06 wt percent SiO2 and no more than 0.04 wt percent Na2O. The carrier has a water absorption no greater than 0.35 g/g and a ratio of water absorption (g/g) to surface area (m2/g) no greater than 0.50 g/m2. Another aspect of the invention is a catalyst for the epoxidation of olefins which comprises the above described carrier and silver dispersed thereon, where the carrier has a monomodal, bimodal or multimodal pore distribution and where the quantity of silver is between 5 and 50 wt %, relative to the weight of the catalyst. A reactor system for the epoxidation of olefins is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.