Method for producing isocyanates

US8436204B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Carsten Knoesche · Niederkirchen, DE
• Eckhard Stroefer · Mannheim, DE
• Dieter Stuetzer · Dudenhofen, DE
• Bernd Sachweh · Meckenheim, DE
• Markus Linsenbühler · Heidelberg, DE
• Andreas Woelfert · Bad Rappenau, DE

Key dates

• Filing date: Jul 5, 2007
• Grant date: May 7, 2013
• Expiry date: Jul 24, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C263/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention provides a process for preparing isocyanates by reacting amines with phosgene, wherein the amine or a mixture of amine and a solvent is mixed in the form of an aerosol with gaseous phosgene and the amine is subsequently reacted with phosgene.