Production of gamma-butyrolactone from maleic anhydride with a hydrogenation catalyst
US4105674A · kind A · utility
18Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1977 |
| Grant date | Aug 8, 1978 |
| Priority date | — |
| Expiry date | Mar 9, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/8926
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Hydrogenation catalyst and a process for producing gamma-butyrolactone by hydrogenating a feed compound -- selected from the group consisting of maleic acid, succinic acid, maleic anhydride, succinic anhydride, and mixtures of any of the foregoing -- in the vapor phase, in the presence of said catalyst, which is a highly selective elemental Cu-Pd or Cu-Pt catalyst, in order to produce high yields of gamma-butyrolactone and minimize the formation of by-products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.