Process of recovering monoalkylbenzene and pure 1,3,5-trialkylbenzene from a mixture of dialkyl- and trialkylbenzenes
US5202516A · kind A · utility
8Cited by
23References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1991 |
| Grant date | Apr 13, 1993 |
| Priority date | — |
| Expiry date | Aug 19, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process of recovering monoalkylbenzene and pure 1,3,5-trialkylbenzene from an isomeric mixture containing dialkyl- and trialkylbenzenes. The process comprises transalkylating a monocyclic aromatic compound with a mixture of dialkyl- and trialkyl-benzenes in the presence of an acidic mordenite zeolite under conditions such that monoalkylbenzene and predominantly 1,3,5-trialkylbenzene are formed. 1,3,5-trialkylbenzene is isolated in pure form from a mixture of the same and 1,2,4- and/or 1,2,3-trialkylbenzene by use of a dealuminated zeolite Y adsorbent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.