Aromatic isomerization using a modified silicoaluminophosphate
US5898090A · kind A · utility
8Cited by
8References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1997 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Dec 17, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention is drawn to a process for isomerizing a non-equilibrium mixture of xylenes and ethylbenzene using a silicoaluminophosphate molecular sieve which is enriched in framework silicon at the surface, resulting in a greater yield of para-xylene compared to prior-art processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.