PROCESS FOR THE PREPARATION OF PROPANE-1,3-DIOL BY VAPOR PHASE HYDROGENATION OF 3-HYDROXYPROPANAL, BETA-PROPIOLACTONE, OLIGOMERS OF BETA-PROPIOLACTONE, ESTERS OF 3-HYDROXYPROPANOIC ACID OR MIXTURES THEREOF
US6982357B2 · kind B2 · utility
11Cited by
26References
7Claims
0Family size
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Key dates
| Filing date | Mar 14, 2001 |
| Grant date | Jan 3, 2006 |
| Priority date | — |
| Expiry date | Mar 14, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C29/141
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is described for the production of propane-1,3-diol. The process comprises subjecting a vaporous feed mixture comprising a hydrogen-containing gas and a feedstock selected from 3-hydroxypropanal, β-propiolactone, oligomers of β-propiolactone, esters of 3-hydroxypropanoic acid, and mixtures of two or more thereof to hydrogenation conditions in a hydrogenation zone in the presence of a heterogeneous hydrogenation catalyst, and recovering a reaction product comprising propane-1,3-diol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.