Patent ID: 6627046
Filing Date: 2003-09-30
Classification: C07C,C08G,Y10S

Abstract:
A process for separating into fractions an output stream from an ammonolysis reactor, the output stream containing at least three useful reaction products,at least one useful reaction product being a first monomer having an amine functionality with a first predetermined vapor pressure associated therewith, at least one other useful reaction product being a high boiling polyamide intermediate material having a vapor pressure lower than the first predetermined vapor pressure, and at least one other useful reaction product being a first reactive monomer having a vapor pressure intermediate the lower vapor pressure and the first predetermined vapor pressure, the process comprising the step of: as a first treatment of the output stream that separates at least one of the useful reaction products from the others, using a first distillation column to separate the first monomer having the amine functionality and the first reactive monomer having the intermediate vapor pressure from the high boiling polyamide intermediate material.