摘要:
The present invention relates to the manufacture of bio-based acrolein and acrylic acid from glycerol as raw material and specifically falls within the scope of an acrolein and acrylic acid manufacturing process according to which the reaction, where glycerol is dehydrated in acrolein, is carried out and a step of oxidizing a water-rich phase, separated from the reaction medium of said dehydration reaction, is implemented before recycling said water-rich phase in the glycerol dehydration step. Said oxidizing treatment makes it possible to prevent the accumulation of organic impurities during the process while minimizing the use of water and polluted water flow discharge.