Process for the production of 3-hydroxy propionic acid or a salt thereof

US5831121A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Thomas Haas · Munster, DE
• Martin Meier · Werl, DE
• Christoph Brossmer · Frankfurt, DE
• Dietrich Arntz · Oberursel, DE
• Andreas Freund · Kleinostheim, DE

Key dates

• Filing date: Jul 21, 1997
• Grant date: Nov 3, 1998
• Expiry date: Jul 21, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C51/235
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

3-hydroxy propionic acid is obtained in high yield through the catalytic oxidation of 3-hydroxy propionaldehyde with O.sub.2 or an O.sub.2 -containing gas in the aqueous phase in the presence of a platinum-group catalyst, in particular a Pd or Pt supported catalyst. The catalyst is used in a quantity corresponding to at least 10 percent by weight of the platinum-group metal relative to 3-hydroxy propionaldehyde.