Removing permanganate-reducing impurities from acetic acid
US7208625B1 · kind B1 · utility
10Cited by
16References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2006 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Aug 4, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/487
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for removing permanganate-reducing impurities from an acetic acid product is disclosed. The method comprises contacting an acetic acid product containing permanganate-reducing impurities with peracetic acid and an oxygen-containing gas. The method is particularly suitable for post treatment of acetic acid that contains permanganate-reducing impurities such as crotonaldehyde.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.