Alkylation process operating at high recycle ratios
US6835862B1 · kind B1 · utility
12Cited by
28References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2002 |
| Grant date | Dec 28, 2004 |
| Priority date | — |
| Expiry date | Aug 5, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2529/70
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the alkylation of aromatics with olefins using a solid catalyst is disclosed, wherein the effluent recycle ratio to the alkylation catalyst bed is maintained more than a lower limit. Such operation can decrease the catalyst deactivation rate and the formation of diphenylalkanes. This invention is applicable to processes for the production of a wide variety of commercially important alkylated aromatics, including ethylbenzene and cumene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.