Process for producing acrylic acid
US8404887B2 · kind B2 · utility
2Cited by
18References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2009 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Dec 24, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for producing acrylic acid of the present invention comprises the step of conducting gas-phase oxidative dehydrogenation of a composition containing propionaldehyde using a solid catalyst containing molybdenum and vanadium as essential components, thereby obtaining acrylic acid. The obtained acrylic acid is preferably purified by crystallization, and a monomeric component containing the purified acrylic acid is polymerized to thereby give a hydrophilic resin such as an absorbent resin and a water-soluble resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.