METHOD FOR THE CONTINUOUS PRODUCTION OF ISOCYANATES
Autor: | BASF AG, SOHN MARTIN, STROEFER ECKHARD, NEVEJANS FILIP, PENZEL ULRICH, PALLASCH HANS-JUERGEN, LEUTHOLD RENE, BRODHAGEN ANDREAS, WOELFERT ANDREAS, MACKENROTH WOLFGANG, MAURER MARKUS |
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Popis: | The invention relates to a method for the continuous production of polyisocyanates by reaction of organic amines with phosgene, characterised in that the reaction occurs in at least three stages, whereby the first stage is in a mixing unit, the second stage in at least one residence time unit and the third stage in at least one material separating apparatus and the pressure in each subsequent stage is lower than in the previous stage. |
Databáze: | OpenAIRE |
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