Purification of chemical 1,3-propanediol
US7038092B2 · kind B2 · utility
15Cited by
36References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2005 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Aug 12, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C29/90
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a process comprising contacting chemical 1,3-propanediol with hydrogen in the presence of a hydrogenation catalyst. Preferably, the chemical 1,3-propanediol, before the contacting has an initial color and, after the contacting, has a color that is lower than the initial color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.