Process for the phosgenation of amines in the gas phase using microstructure mixers
AssigneesBayer Aktiengesellschaft, Forschungszentrum Karlsruhe GmbH
InventorsGernot Becker, Konrad Fischer, Andreas Flink, Erhard Herrmann, Lothar Weismantel, Georg Wiessmeier, Klaus Schubert, Maximillian Fichtner
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Abstract
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.
Claims11
A gas phase process for the production of an isocyanate comprising reacting an amine with phosgene in the gas phase in a microstructure mixer for rapid mixing of the amine with phosgene.
Dependencies are inferred from the claim text.