Process for the disproportionation and transalkylation of toluene and heavy aromatics
US7109389B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 19, 2003 |
| Grant date | Sep 19, 2006 |
| Priority date | — |
| Expiry date | Sep 21, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2529/78
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the disproportionation and transalkylation of toluene and the heavy aromatics comprises: subjecting a first stream of toluene, and a stream enriched in aromatics of nine carbon atoms to toluene disproportionation and transalkylation reactions in the presence of hydrogen in a first reaction zone to produce a first product mixture comprising benzene, aromatics of eight carbon atoms and heavy aromatics of ten and more carbon atoms; subjecting a second stream of toluene, and a stream enriched in heavy aromatics of ten and more carbon atoms to transalkylation reaction in the presence of hydrogen in a second reaction zone to produce a second product mixture comprising benzene, aromatics of eight carbon atoms and aromatics of nine carbon atoms; and isolating and recovering benzene and aromatics of eight carbon atoms from the first and second product mixtures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.