公开(公告)号：BR0114081A

公开(公告)日：2003-07-29

申请号：BR0114081

申请日：2001-09-20

Applicant: BASF AG

Inventor： OHLBACH FRANK ,  LUYKEN HERMANN ,  ANSMANN ANDREAS ,  FISCHER ROF-HARTMUTH ,  MELDER JOHANN-PETER ,  BASSLER PETER

IPC: B01J23/86 ,  B01J23/94 ,  B01J38/52 ,  C07B61/00 ,  C07C209/48 ,  C07C211/12

Abstract: A process is provided for the regeneration of a heterogeneous catalyst used for the preparation of compounds containing NH 2 groups by the hydrogenation, with hydrogen, of compounds containing at least one unsaturated carbon-nitrogen bond, wherein a) the feed of the compound to be hydrogenated is stopped and b) the heterogeneous catalyst is treated with a compound of the formula R 1 R 2 N-CO-R 3 (I), in which R 1 is hydrogen or C 1 -C 4 alkyl and R 2 , R 3 independently of one another are each hydrogen or C 1 -C 4 alkyl or together are a C 3 -C 6 alkylene group, or mixtures of such compounds, at a pressure ranging from 0.1 to 30 MPa and a temperature ranging from 100 to 300° C., with the proviso that the compound of formula (I) is in liquid form during the treatment.