Method for producing and purifying 3-minopropanol

The invention relates to a method for purifying a reaction product containing 3-aminopropanol, said reaction product being produced in the reaction of ethylene cyanohydrin with hydrogen in the presence of ammonia, characterized in that the reaction product containing 3-aminopropanol is distilled in...

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Bibliographische Detailangaben
Hauptverfasser: KROLL MANFRED, HERRMANN ANDREAS EDGAR, HERBRECHT DOMINIK
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to a method for purifying a reaction product containing 3-aminopropanol, said reaction product being produced in the reaction of ethylene cyanohydrin with hydrogen in the presence of ammonia, characterized in that the reaction product containing 3-aminopropanol is distilled in two or more stages, wherein the ammonia content of the reaction product containing 3-aminopropanol is 1 wt% or less before the reaction product is introduced into the first distillation stage and the temperature in the distillation stages is not more than 135 DEG C. The invention further relates to a method for producing 3-aminopropanol by reacting ethylene cyanohydrin with hydrogen in the presence of ammonia, characterized in that the reaction product containing 3-aminopropanol is purified according to the invention. The invention further relates to a method for producing 3-aminopropanol derivatives, in particular panthenol acamprosate, mefenorex, domperidone, ifosfamide, or urapidil, from 3-aminopropanol produced