Process for recovering acrolein or propionaldehyde from dilute aqueous streams
US6515187B1 · kind B1 · utility
11Cited by
7References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2002 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Jun 21, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/82
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method of purifying acrolein or propionaldehyde with a single column distillation system is provided, where the distillation system has a side-draw take-off outlet for recovering purified acrolein or propionaldehyde located between the crude product feed point and the light-boiling impurities distillation site.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.