Continuous process for the conversion of 2,5-dihydrofuran to 2,3-dihydrofuran
US5681969A · kind A · utility
2Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 1996 |
| Grant date | Oct 28, 1997 |
| Priority date | — |
| Expiry date | May 3, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/28
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a process for the continuous production and recovery of 2,3-dihydrofuran (2,3-DHF) by the isomerization of 2,5-dihydrofuran (2,5-DHF) which contains certain impurities to 2,3-dihydrofuran in yields exceeding 95%. The process utilizes, in order, an isomerization zone containing one or more beds of a supported, palladium or platinum catalyst, a product recovery zone comprising a distillation column, a high boiler removal zone and means for feeding the 2,5-DHF component of the bottoms stream from the product recovery zone to the isomerization zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.