公开(公告)号：US5190906A

公开(公告)日：1993-03-02

申请号：US843919

申请日：1992-02-27

申请人： Akira Murakami ,  Hidemi Unei ,  Masayuki Teranishi ,  Masaki Ohta

发明人： Akira Murakami ,  Hidemi Unei ,  Masayuki Teranishi ,  Masaki Ohta

IPC分类号： B01J23/78 ,  B01J23/86 ,  B01J23/88 ,  B01J23/887 ,  C07B61/00 ,  C07C5/333 ,  C07C15/46

CPC分类号： B01J23/8872 ,  B01J23/78 ,  B01J23/8871 ,  C07C5/3332

摘要： In order to increase performances of an iron oxide-potassium oxide system catalyst to be used for an alkyl aromatic hydrocarbon dehydrogenation reaction in the presence of steam, there is provided an alkyl aromatic hydrocarbon dehydrogenation catalyst wherein a little amount of titanium oxide is added by the mixing and kneading method or by the preceding addition to iron oxide in the production of the iron oxide-potassium oxide system catalyst to be used for the alkyl aromatic hydrocarbon dehydrogenation reaction in the presence of steam. The iron oxide-potassium oxide system catalyst is allowed to contain a little amount of titanium oxide, whereby an activity can be remarkably increased, as well as a selectivity in the same conversion ratio can also be improved in the alkyl aromatic hydrocarbon dehydrogenation reaction, and further the obtained catalyst exhibits stable performances with time on stream.