Support properties of silica supported catalysts and their use in olefin metathesis
US8324440B2 · kind B2 · utility
24Cited by
18References
7Claims
0Family size
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Key dates
| Filing date | Feb 5, 2010 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Nov 25, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Silica supports having a surface area from about 250 m2/g to about 600 m2/g and an average pore diameter from about 45 Å to about 170 Å, used for supported tungsten catalysts, improves the activity of the resulting catalyst (i.e., its conversion level at a given temperature) for the metathesis of olefins, without compromising its selectivity to the desired conversion product(s). Exemplary catalysts and processes include those for the production of valuable light olefins such as propylene from a hydrocarbon feedstock comprising ethylene and butylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.