Method for catalytically producing formic acid and regenerating the catalyst used in the process with little overpressure

US10661263B2 · kind B2 · utility

Assignee

• OXFA GMBH · DE

Inventors

• Hermann Wolf Jbach · Remscheid, DE
• Florian Kohler · Nuremberg, DE
• Matthias Schmidt · Munich, DE
• Gunthard Scholz · Gundelsheim, DE

Key dates

• Filing date: Jul 17, 2017
• Grant date: May 26, 2020
• Expiry date: Jul 17, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/584
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to catalytically producing formic acid and regenerating the catalyst used in the process. A vanadyl ion, vandate ion, or polyoxometallate ion, which is used as the catalyst, of the general formula [PMoxVyO40]n− is brought into contact with an alpha hydroxyl aldehyde, an alpha hydroxy carboxylic acid, a carbohydrate, a glycoside, or a polymer, which contains a carbon chain and which comprises at least two OH groups bonded as substituents to the carbon chain as a substituent in a repeating manner and/or an O, N, or S atom contained in the carbon chain in a repeating manner, in a liquid solution (12) in a vessel (10) at a temperature above 70° C. and below 160° C., wherein 6≤x≤11, 1≤y≤6, 3<n<10, and x+y=12, where n, x, and y is each a whole number.