PROCESS FOR THE PREPARATION OF EPSILON-CAPROLACTAM

摘要

This invention relates to a process for the preparation of stable solutions of epsilon -caprolactone by means of the oxidation of cyclohexanone by a percarboxylic acid containing 2 to 4 carbon atoms. According to the invention, the percarboxylic acid is in the form of a crude solution, such as that resulting from the reaction of hydrogen peroxide with the corresponding carboxylic acid in the presence of a boric acid catalyst with the continuous elimination of water by azeotropic entrainment.