申请人:Ruhrchemie Aktiengesellschaft
公开号:US04102913A1
公开(公告)日:1978-07-25
A continuous process for the manufacture of .alpha.-cyano-ethylated aliphatic aldehydes by continuously passing acrylonitrile and aldehyde through a tubular reaction zone and therein contacting the same with an alkali hydroxide at a temperature between 20.degree. and 120.degree. C, the contact of the acrylonitrile and aldehyde with the alkali hydroxide being for a brief period of time and thereafter immediately separating the reaction product from the alkali hydroxide. Unreacted acrylonitrile and aldehyde can be recycled to the tubular reactor and additional alkali hydroxide can be added to make up for any losses.
一种连续生产α-氰基乙基化脂肪族醛的方法,通过将丙烯腈和醛连续通过管式反应区,并在其中与碱性氢氧化物接触,在20℃至120℃的温度下进行短暂的丙烯腈和醛与碱性氢氧化物的接触,然后立即将反应产物与碱性氢氧化物分离。未反应的丙烯腈和醛可以回收到管式反应器中,并可以添加额外的碱性氢氧化物以弥补任何损失。