Catalysts having enhanced stability, efficiency and/or activity for alkylene oxide production
US8513156B2 · kind B2 · utility
1Cited by
49References
2Claims
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Key dates
| Filing date | Jul 30, 2010 |
| Grant date | Aug 20, 2013 |
| Priority date | — |
| Expiry date | Jul 18, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst for the manufacture of alkylene oxide, for example ethylene oxide, by the vapor-phase epoxidation of alkene containing impregnated silver and at least one efficiency-enhancing promoter on an inert, refractory solid support, said support incorporating a sufficient amount of zirconium component (present and remaining substantially as zirconium silicate) as to enhance at least one of catalyst activity, efficiency and stability as compared to a similar catalyst which does not contain the zirconium component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.