D VERFAHREN ZUR HERSTELLUNG EINES MONOMERS EINES POLYAMIDS

摘要

Disclosed is a commercially advantageous method for obtaining a monomer by performing a depolymerization reaction of a polyamide. Specifically disclosed is a method for obtaining a monomer through a depolymerisation reaction of a polyamide, wherein the depolymerization reaction is performed in the presence of a hydrocarbon solvent. In addition, the depolymerization reaction is performed in the presence of water. The ratio of water relative to the total mass of the hydrocarbon solvent and water is not more than 30 % by mass. The depolymerization reaction can be carried out without using a catalyst. Preferably, the depolymerization reaction is performed at a temperature not less than 300°C and not more than 420°C.