Process for the preparation of gamma-valerolactone
US10377727B2 · kind B2 · utility
0Cited by
8References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 6, 2016 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Oct 6, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J23/8966
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Gamma-valerolactone is prepared from a levulinic acid ester in a continuous process where a stream of the levulinic acid ester together with a gaseous stream of a hydrogen-containing gas is contacted with a hydrogenation catalyst, where the levulinic acid ester is in the liquid phase, and where the hydrogenation catalyst is a solid particulate catalyst including at least one hydrogenating metal, supported on an oxide carrier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.