IMPROVED PROCESS FOR MANUFACTURING ACROLEIN/ACRYLIC ACID

摘要

The present invention relates to the selective elimination of propanal in acrolein- rich streams to produce acrolein and/or acrylic acid and/or acrylonitrile containing low amount of propanal and/or propionic acid and/or propionitrile. One subject of the present invention is a process for manufacturing acrolein comprising a step of selective elimination of propanal in an acrolein-rich stream. Another subject of the present invention is a process for manufacturing acrylic acid from glycerol including a step of selective elimination of propanal in an acrolein- rich stream.