Acid washed silica supported catalysts and their use in olefin metathesis
US8895795B2 · kind B2 · utility
8Cited by
16References
13Claims
0Family size
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Key dates
| Filing date | Feb 5, 2010 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | May 8, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Acid washing of silica supports, 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.