Stirring device and process for carrying out a gas-liquid reaction

US7322565B2 · kind B2 · utility

Assignee

• Bayer MaterialScience AG · DE

Inventors

• Rainer Buse
• Berthold Keggenhoff · Krefeld, DE
• Jurgen Munnig · Kaarst, DE
• Friedhelm Steffens · Leverkusen, DE
• Joachim C. Ritter · Wilmington, US

Key dates

• Filing date: Aug 9, 2005
• Grant date: Jan 29, 2008
• Expiry date: Feb 4, 2026

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2219/00076
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention describes a stirring device made from a gassing stirrer and a liquid mixer or two liquid mixers, which are arranged on a shaft and each have a feed and at least one exit opening, wherein the exit openings of the gassing stirrer and of the liquid mixer or the liquid mixers are at a distance from one another, the ratio, a/d, of the distance, a, between the exit openings to the diameter, d, of the gassing stirrer or liquid mixer being 0.02 to 0.5 and the ratio, b/d, of the distance, b, between the outer edges to the diameter, d, of the gassing stirrer or liquid mixer being 0.01 to 0.4.