Title:
【発明の名称】アミノニトリルをラクタムに環化加水分解するための触媒の再生方法及びラクタムを製造するための再生された触媒の使用
Document Type and Number:
Japanese Patent JP2002521176
Kind Code:
A
Abstract:
The present invention relates to a process for regenerating a catalyst for the cyclizing hydrolysis of an aminonitrile for the manufacture of lactams. It relates more particularly to the regeneration of the solid catalysts used in the processes for producing lactams by the cyclizing hydrolysis of aminonitriles. This regeneration process consists in treating the spent catalyst or the catalyst at the end of the cycle at a temperature of between 300° C. and 600° C. with an oxidizing atmosphere.
Inventors:
Jean-Pierre Brunel
Christoph Nede
Christoph Nede
Application Number:
JP2000560978A
Publication Date:
July 16, 2002
Filing Date:
July 15, 1999
Export Citation:
Assignee:
Rhodia Polyamide Intermedium
International Classes:
B01J21/04; B01J21/20; B01J35/10; B01J38/12; B01J38/14; B01J38/16; B01J38/20; C07B61/00; C07D223/10; C07D201/08; (IPC1-7): B01J38/12; B01J21/04; B01J21/20; B01J35/10; B01J38/14; C07D201/08; C07D223/10
Attorney, Agent or Firm:
Motohiro Kurauchi (1 outside)