Verfahren zur Herstellung von Epsilon-Caprolactam durch Beckmann-Umlagerung in der Gasphase in Gegenwart eines Zeolithkatalysators und einer stickstoffhaltigen Verbindung

摘要

epsilon -Caprolactam is prepared by bringing cyclohexanone oxime into contact in gas phase with solid catalysts such as a zeolite catalyst in the presence of at least one nitrogen-containing compound selected from the group consisting of ammonia, methylamines and epsilon -caprolactam.