Low pressure xylene isomerization
US4101596A · kind A · utility
12Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1977 |
| Grant date | Jul 18, 1978 |
| Priority date | — |
| Expiry date | Jan 10, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S585/954
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Long on-stream periods of low pressure, vapor phase isomerization of xylenes is achieved in a system having tolerance of ethyl benzene in the charge by using a zeolite catalyst such as zeolite ZSM-5 at partial pressure of eight carbon atom aromatics below 100 pounds per square inch and temperature of 500.degree. F. to 800.degree. F.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.