公开(公告)号：US3843630A

公开(公告)日：1974-10-22

申请号：US32865373

申请日：1973-02-01

Applicant: KANEBO LTD

Inventor： FUJITA I ,  OTOI K ,  YONEYA T

IPC: C07D201/02 ,  B01J21/00 ,  B01J21/04 ,  B01J21/08 ,  B01J21/12 ,  B01J21/14 ,  B01J23/00 ,  B01J25/00 ,  B01J27/00 ,  B01J29/85 ,  B01J37/26 ,  C07B61/00 ,  C07D41/06

CPC classification number: B01J37/26 ,  B01J21/04 ,  B01J21/08 ,  B01J21/12 ,  B01J21/14

Abstract: The present invention relates to a process for producing Epsilon -caprolactam which comprises bringing N-acetyl- Epsilon caprolactam into contact in a gaseous phase with an acid catalyst or basic catalyst in the presence of water vapor.