Production of lactic acid
US4072709A · kind A · utility
7Cited by
2References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 27, 1975 |
| Grant date | Feb 7, 1978 |
| Priority date | — |
| Expiry date | May 27, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/235
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Lactic acid is synthesized by a process in which a vinyl ester is hydroformylated to an .alpha.-substituted propionaldehyde by reacting the vinyl ester with carbon monoxide and hydrogen in the presence of a hydroformylation catalyst and by further converting the .alpha.-substituted carbonyl intermediate via oxidation and hydrolysis to lactic acid. A preferred embodiment of the invention utilizes vinyl acetate as the feed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.