Process for producing vanillin from vanillin-comprising compositions

US9006494B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Florian Stecker · Mannheim, DE
• Andreas Fischer · Heppenheim, DE
• Axel Kirste · Ludwigshafen am Rhein, DE
• Agnes Voitl · Schifferstadt, DE
• Chung Huan WONG · Mannheim, DE
• Siegfried R. Waldvogel · Gau-Algesheim, DE
• Carolin Regenbrecht · Mainz, DE
• Dominik Schmitt · Harxheim, DE
• Marius Franziskus Hartmer · Mainz, DE

Key dates

• Filing date: Jul 3, 2013
• Grant date: Apr 14, 2015
• Expiry date: Jul 3, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C45/79
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for producing vanillin from an aqueous, basic vanillin-comprising composition, in particular from a composition as arises in the oxidation, especially in the oxidation by electrolysis, of aqueous alkaline lignin-comprising compositions, comprising at least one treatment of an aqueous, basic vanillin-comprising composition, in particular the treatment of a composition as arises in the oxidation, especially in the oxidation by electrolysis, of aqueous alkaline lignin-comprising compositions, with a basic adsorbent, in particular an anion exchanger.