Title:
水素添加触媒の再生方法、ニトリル基を有する化合物の水素添加方法
Document Type and Number:
Japanese Patent JP3725422
Kind Code:
B2
Abstract:
The invention concerns a method for regenerating a hydrogenation catalyst, and hydrogenation methods carried out with a catalyst comprising at least one regenerated catalyst. More particularly, it concerns a method for regenerating Raney catalysts used in total or partial hydrogenating processes of compounds comprising nitrile functions into amine functions. Said method consists in treating the spent catalyst with a basic solution and optionally in subjecting said catalyst to hydrogenation before stripping to eliminate the impurities present on the catalyst. Thus, the regenerating method enables to recuperate up to 100% of the catalytic activity.
Inventors:
Vincent Bocha
Philippe Lecomte
Philippe Lecomte
Application Number:
JP2000526298A
Publication Date:
December 14, 2005
Filing Date:
December 23, 1998
Export Citation:
Assignee:
Rhodia Polyamide Intermedium
International Classes:
B01J25/04; B01J38/64; C07B61/00; C07C209/48; C07C211/09; C07C211/12; C07C253/30; C07C255/24; (IPC1-7): B01J25/04; B01J38/64; C07C209/48; C07C211/12
Foreign References:
| US2604455 | ||||
| FR2211287A1 | ||||
| GB833592B | ||||
| DE832604B |
Attorney, Agent or Firm:
Motohiro Kurauchi
Hiroshi Kazama
Hiroshi Kazama