公开(公告)号：US5112580A

公开(公告)日：1992-05-12

申请号：US525724

申请日：1990-05-21

申请人： Masanobu Ajioka ,  Shinji Takenaka ,  Hiroyuki Itoh ,  Masafumi Kataita ,  Yoshitsugu Kohno

发明人： Masanobu Ajioka ,  Shinji Takenaka ,  Hiroyuki Itoh ,  Masafumi Kataita ,  Yoshitsugu Kohno

IPC分类号： B01J33/00 ,  B01J8/18 ,  B01J23/26 ,  C01B7/04

CPC分类号： C01B7/04 ,  B01J23/26 ,  B01J8/18

摘要： Chlorine is produced by reacting hydrogen chloride and oxygen in the presence of a chromium oxide catalyst in a reactor whose catalyst-contacting part is lined with one of lining materials represented by the following general formula (I):M.sub.a X.sub.b (I)wherein M can be boron, aluminum, silicon, titanium, zirconium or chromium, X denotes oxygen, nitrogen or carbon, a is an integer of 1-2 and b stands for an integer of 1-3 or with a mixture of at least two of the lining materials. The above process and reactor are effective in maintaining the activity of the catalyst.

公开(公告)号：US4956169A

公开(公告)日：1990-09-11

申请号：US169951

申请日：1988-03-18

申请人： Masanobu Ajioka ,  Shinji Takenaka ,  Hiroyuki Itoh ,  Masafumi Kataita ,  Yoshitsugu Kohno

发明人： Masanobu Ajioka ,  Shinji Takenaka ,  Hiroyuki Itoh ,  Masafumi Kataita ,  Yoshitsugu Kohno

IPC分类号： B01J33/00 ,  B01J8/18 ,  B01J23/26 ,  C01B7/04

CPC分类号： C01B7/04 ,  B01J23/26 ,  B01J8/18

摘要： Chlorine is produced by reacting hydrogen chloride and oxygen in the presence of a chromium oxide catalyst in a reactor whose catalyst-contacting part is lined with one of lining materials represented by the following general formula (I):M.sub.a X.sub.b (I)wherein M means boron, aluminum, silicon, titanium, zirconium or chromium, X denotes oxygen, nitrogen or carbon, a is an integer of 1-2 and b stands for an integer of 1-3 or with a mixture of at least two of the lining materials. The above process and reactor are effective in maintaining the activity of the catalyst.