Process for working up solvent-containing hydrogenation product mixtures

US9045382B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Rolf Pinkos · Bad Dürkheim, DE
• Jens Heimann · Worms, DE
• Hans-Martin Polka · Mannheim, DE
• Heiko Urtel · Bischofswerda, DE
• Gunther Windecker · Ludwigshafen, DE

Key dates

• Filing date: Jul 16, 2007
• Grant date: Jun 2, 2015
• Expiry date: Aug 6, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C209/48
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for separating off solvents from solvent-comprising hydrogenation outputs from a catalytic hydrogenation process, which comprise at least one water-soluble hydrogenation product having at least one alcohol, lactone, ether, lactam or amino group in a solvent which is immiscible or not completely miscible with water and has a boiling point below 100° C., wherein water is added to the hydrogenation output, the solvent-comprising phase is separated off and recirculated to the hydrogenation.