METHOD FOR MANUFACTURING ISOCYANATES

The invention relates to a method for preparing isocyanates by the phosgenation of the corresponding amines in which problems resulting from the formation of deposits in apparatuses of the reaction segment during activation (starting) and deactivation (termination) of the method can be prevented by...

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Main Authors THOMAS KNAUF, MATTHIAS EHLERS, FRANCISCO MUNOZ VELASCO, ANDREAS KARL RAUSCH, CHARLES BJOERNDAHL, CARLOS ALVAREZ HERRERO, PETER PLATHEN
Format Patent
LanguageEnglish
Portuguese
Published 27.03.2018
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention relates to a method for preparing isocyanates by the phosgenation of the corresponding amines in which problems resulting from the formation of deposits in apparatuses of the reaction segment during activation (starting) and deactivation (termination) of the method can be prevented by processing measures, in particular ensuring that there is a surplus of phosgene relative to the phosgenating amine during the critical starting and termination steps of the method.
Bibliography:Application Number: PT20150711525T