Alkylation of aromatic hydrocarbons
US4185040A · kind A · utility
75Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1977 |
| Grant date | Jan 22, 1980 |
| Priority date | — |
| Expiry date | Dec 16, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2529/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Highly stable and active catalysts are provided for the alkylation of aromatic hydrocarbons with C.sub.2 -C.sub.4 olefins. The catalysts are extruded composites of an acidic, crystalline aluminosilicate zeolite, e.g. Y zeolite, and a porous mineral oxide binder. The basic novel feature of the invention resides in the shape and size of the catalyst extrudates. By shaping the extrudates so as to give a high ratio of external surface area to volume, resistance to deactivation is found to be much improved, as well as activity and selectivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.