METHOD FOR THE CONTINUOUS PRODUCTION OF ISOCYANATES

The invention relates to a process for preparing polyisocyanates by reacting organic amines with phosgene, wherein the reaction is carried out in at least three stages, with the first stage being carried out in a mixing apparatus, the second stage in at least one residence apparatus and the third st...

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Bibliographic Details
Main Authors PALLASCH, HANS-JUERGEN, STROEFER, ECKHARD, PENZEL, ULRICH, SOHN, MARTIN, NEVEJANS, FILIP, BRODHAGEN, ANDREAS, MACKENROTH, WOLFGANG, LEUTHOLD, RENE, MAURER, MARKUS, WOELFERT, ANDREAS
Format Patent
LanguageEnglish
French
German
Published 04.09.2013
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention relates to a process for preparing polyisocyanates by reacting organic amines with phosgene, wherein the reaction is carried out in at least three stages, with the first stage being carried out in a mixing apparatus, the second stage in at least one residence apparatus and the third stage in at least one separation apparatus and the pressure in each successive stage being lower than that in the previous stage.
Bibliography:Application Number: EP20030789262