Process for catalytic aldol condensations by means of a multiphase reaction

US6340778B1 · kind B1 · utility

Assignee

• OXENO OLEFINCHEMIE GMBH · DE

Inventors

• Wilfried Bueschken · Haltern, DE
• Klaus-Diether Wiese · Haltern am See, DE
• Guido Protzmann · Bensheim, DE
• Juergen Koch · Schifferstadt, DE

Key dates

• Filing date: Oct 24, 2000
• Grant date: Jan 22, 2002
• Expiry date: Oct 24, 2020

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2208/00265
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the catalytic aldol condensation of aldehydes by means of a multiphase reaction in a tube reactor, wherein the catalyst is present in the continuous phase and at least one aldehyde is present in a dispersed phase and the loading factor B of the tube reactor is equal to or greater than 0.8; the aldol condensation products obtained in this way can be used for preparing alcohols or carboxylic acids.