Title:
触媒活性の再生方法
Document Type and Number:
Japanese Patent JP2013537480
Kind Code:
A
Abstract:
The present invention relates to a process for restoring the activity of spent catalysts for the hydrogenation of aromatic nitro compounds, in which a regeneration comprising at least a first burning off stage, a first washing stage, a second burning off stage and a second washing stage is carried out at periodic intervals.
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Inventors:
Michael Merkel
Thomas Knauf
Karl-Heinz Wilke
Thomas Knauf
Karl-Heinz Wilke
Application Number:
JP2013521114A
Publication Date:
October 03, 2013
Filing Date:
July 26, 2011
Export Citation:
Assignee:
Bayer Intellectual Property GmbH
International Classes:
B01J38/12; B01J23/648; B01J23/96; B01J35/10; B01J38/14; B01J38/20; B01J38/48; C07C209/36; C07C211/46; C07B61/00
Attorney, Agent or Firm:
Mitsuo Tanaka
Takuji Yamada
Kenichi Morizumi
Kajita Marina
Takuji Yamada
Kenichi Morizumi
Kajita Marina