Process for reducing or avoiding foam production during chemical and physical materials conversion processes and a device for performing this process

US6277333A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Rudiger Schutte · Scheinfeld, DE
• Alexander Ruhs · Rheinfelden (Baden), DE
• Ivan Pelgrims · Kontich, BE

Key dates

• Filing date: Dec 5, 1997
• Grant date: Aug 21, 2001
• Expiry date: Dec 5, 2017

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2219/0025
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The production of foam which occurs in many chemical and physical materials conversion processes can be avoided by performing the materials conversion process in an ascending jet reactor, including a baffle-free container with a tapering lower section, preferably a conical lower section, and a device for gas injection, and the contents of the reactor are thoroughly mixed by means of ascending jet circulation caused by gas injection.