Process for the production of mesitylene and durene
US6949687B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 17, 2003 |
| Grant date | Sep 27, 2005 |
| Priority date | — |
| Expiry date | Dec 17, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C5/2737
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is described for the contemporaneous preparation of mesitylene and durene, characterized in that mesitylene and durene are obtained exclusively starting from pseudo-cumene without the use of any further chemical compound, operating in continuous, at a temperature ranging from 210 to 400° C., at a pressure ranging from 1 to 50 bar, with a weight space velocity ranging from 0.1 to 20 hours−1 and in the presence of a catalyst based on crystalline metal-silicates in acid form. After the recovery of mesitylene and durene from the reaction raw product, some of the remaining components of the raw product itself are recycled and fed to the reactor together with the pseudo-cumene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.