Process for separating and recovering 3-hydroxypropionic acid and acrylic acid
US7279598B2 · kind B2 · utility
22Cited by
3References
7Claims
0Family size
Inventors
Key dates
| Filing date | Jun 25, 2004 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Jun 25, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/48
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a process for separating and recovering 3-hydroxypropionic acid from an aqueous solution comprising 3-hydroxypropionic acid and acrylic acid, comprising counter current extracting the aqueous solution with ethyl acetate extractant. Further disclosed is a process for separating and recovering 3-hydroxypropionic acid and acrylic acid from an aqueous solution comprising 3-hydroxypropionic acid and acrylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.