Preparation of acetic acid
US7524988B2 · kind B2 · utility
7Cited by
17References
15Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 1, 2006 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Mar 21, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/487
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for removing aldehyde impurities from an acetic acid stream is disclosed. The method comprises reacting an acetic acid stream containing aldehyde impurities with a hydroxyl compound to form corresponding acetals. The acetals are subsequently removed from the acetic acid by, e.g., distillation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.