Process and device for continuous evaporation to dryness of viscous solutions and suspensions with a tendency to stick

US5817211A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Clemens Casper · Krefeld, DE
• Dieter Grenner
• Hartmut Hetzel · Cologne, DE

Key dates

• Filing date: Dec 6, 1996
• Grant date: Oct 6, 1998
• Expiry date: Dec 6, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D3/343
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The viscosity of a fluid liquid substance is first increased in a multiphase coil in the presence of a gas phase flowing at high speed and then, with separation of the gas phase, the substance is applied to a stirred bed consisting of a solid granular material where it is converted into a solid substance.