Process to alkylate an aromatic with a dilute stream comprising propylene and ethylene
US6063976A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1998 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Aug 18, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2529/85
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a method comprising (a) contacting a first reaction mixture comprising an aromatic and a dilute stream comprising ethylene and propylene with a large pore microporous solid acid catalyst, preferably a large pore zeolite catalyst, which is effective to promote alkylation of the aromatic under first conditions effective to maintain a liquid phase comprising the aromatic and effective to cause the propylene to alkylate said aromatic but substantially ineffective to cause the ethylene to alkylate said aromatic, forming propylated aromatic and a second dilute stream comprising ethylene but substantially depleted of propylene, and (b) recovering the propylated aromatic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.