VERFAHREN ZUR HERSTELLUNG VON EPSILON-CAPROLACTAM

摘要

Epsilon-Caprolactam is prepd. by contacting epsilon-caprolactone and/or a 1-4C alkyl ester of epsilon -hydroxycaproic acid with H2 and NH3 at 200-320 degrees C. with a catalyst consisting of (I) TiO2, Al2O3, Al2O3-silicon oxide and/or silicon oxide; and (II) Cu. Gives epsilon -caprolactam with high yields and selectivity without the formation of (NH4)2SO4 as by-product.