Bayer Aktiengesellschaft

Other

Andreas Flink

Eric Bischof

Attila Molnar

Klaus Schubert

Herbert Stutz

Georg Wiessmeier

Erhard Herrmann

Wolfgang Krohn

Jurgen Dahmer

Gernot Becker

Konrad Fischer

Lothar Weismantel

Maximillian Fichtner

Peter Briedenbach

J Urgen Dahmer

A process for rapidly mixing phosgene and an amine in the gas phase to produce the corresponding isocyanate. Micro-structure mixers are used for the rapid mixing. The educts emerge from the micro-structure mixer in the form of thin free jets which mix very rapidly by diffusion and/or turbulence. As a result, the mixing operation is accelerated substantially as compared with conventional reactors. The isocyanate yield is also increased.

Process for the phosgenation of amines in the gas phase using microstructure mixers

Triisocyanates are produced by gas phase phosgenation of the corresponding (cyclo)aliphatic triamines having three primary amine groups.

Process for preparing triisocyanates

Diisocyanates are produced by gas-phase phosgenation of aliphatic diamines having two primary amino groups in the 1,2- or 1,3-position to one another or by cycloaliphatic diamines having two primary amino groups in the 1,2- or 1,3-position to one another.

Process for the production of diisocyanates

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Dormagen, Germany

Andreas Flink