Process for preparing (meth)acrylic acid
US6399817B1 · kind B1 · utility
10Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2000 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Mar 1, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/50
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a process for preparing acrylic acid which utilizes an aqueous stream which includes recycled wastewater, at least part of which is stripped of undesirable components in a stripping column prior to being recycled to an acrylic acid absorber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.