METHOD FOR PRODUCING 2-HYDROXY-4-(METHYLTHIO)BUTANENITRILE FROM 3-(METHYLTHIO)PROPANAL AND HYDROGEN CYANIDE

摘要

Abstractmethod is disclosed for the production of -hydroxy-4-(methyithio)butyronitrile, in 'which 3-mathyamercaptor oropionaidehyde is reacted with hydrogen cyanide in the ;presence of a base as catalyst in a main reaction zone to form the nitrile and residual amounts of gaseous hydrogen cyanide which leave the main reaction zone are absorbed in an absorption and ;post-reaction zone containing a mixture of 3-methylmercaptobrobionaidehyde and catalyst and optionally 2-hydroxy-4-(methyltheo)butyronitrile and are further reacted.