公开(公告)号：EP2821391A4

公开(公告)日：2015-04-08

申请号：EP13754387

申请日：2013-02-26

申请人： MITSUBISHI RAYON CO

发明人： WATANABE HIROKAZU ,  YANAGITA MOTOO ,  KARASUDA TAKASHI ,  NISHIDA KAZUFUMI ,  MIYAKI KENICHI

IPC分类号： C07C253/26 ,  C07B61/00 ,  C07C255/08

CPC分类号： C07C253/26 ,  B01J27/19 ,  B01J35/002 ,  B01J37/08 ,  B01J2523/00 ,  Y02P20/52 ,  B01J2523/17 ,  B01J2523/305 ,  B01J2523/51 ,  B01J2523/53 ,  B01J2523/64 ,  B01J2523/67 ,  B01J2523/68 ,  B01J2523/69 ,  B01J2523/72 ,  B01J2523/842 ,  B01J2523/847 ,  B01J2523/11 ,  B01J2523/22 ,  C07C255/08

摘要： The invention relates to a method for producing acrylonitrile which includes a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile. The method is characterized in that the fluidized bed catalyst is a catalyst containing iron, antimony, and tellurium, and the vapor phase catalytic ammoxidation process is performed while maintaining an adsorbed amount of ammonia per specific surface area (m 2 /g) of the fluidized bed catalyst in the range of 0.01 to 0.22 µmol/m 2 . According to the method for producing acrylonitrile of the invention, it is possible to stably maintain a high acrylonitrile yield over a long period of time.

公开(公告)号：EP2821392A4

公开(公告)日：2015-04-08

申请号：EP13755100

申请日：2013-02-26

申请人： MITSUBISHI RAYON CO

发明人： WATANABE HIROKAZU ,  YANAGITA MOTOO ,  KARASUDA TAKASHI ,  NISHIDA KAZUFUMI ,  MIYAKI KENICHI

IPC分类号： C07C253/26 ,  B01J38/00 ,  C07B61/00 ,  C07C255/08

CPC分类号： C07C253/26 ,  B01J23/8898 ,  B01J35/002 ,  B01J2523/00 ,  Y02P20/52 ,  C07C255/08 ,  B01J2523/13 ,  B01J2523/23 ,  B01J2523/27 ,  B01J2523/3706 ,  B01J2523/3718 ,  B01J2523/54 ,  B01J2523/68 ,  B01J2523/72 ,  B01J2523/842 ,  B01J2523/847

摘要： The invention relates to a method for producing acrylonitrile which includes a vapor phase catalytic ammoxidation process of performing vapor phase catalytic ammoxidation by bringing a source gas containing propylene, molecular oxygen, and ammonia into contact with a fluidized bed catalyst to obtain acrylonitrile. The method is characterized in that the fluidized bed catalyst is a catalyst containing molybdenum and bismuth and the vapor phase catalytic ammoxidation process is performed while maintaining an adsorbed amount of ammonia per specific surface area (m 2 /g) of the fluidized bed catalyst in the range of 0.05 to 0.6 µmol/m 2 . According to the method for producing acrylonitrile of the invention, it is possible to stably maintain a high acrylonitrile yield over a long period of time.

公开(公告)号：EP2821390A4

公开(公告)日：2015-02-25

申请号：EP13754208

申请日：2013-02-26

申请人： MITSUBISHI RAYON CO

发明人： KARASUDA TAKASHI ,  WATANABE HIROKAZU ,  YANAGITA MOTOO ,  NISHIDA KAZUFUMI

IPC分类号： C07C253/26 ,  B01J27/19 ,  B01J35/00 ,  B01J38/48 ,  C07B61/00 ,  C07C255/08

CPC分类号： C07C253/26 ,  B01J27/0576 ,  B01J35/0073 ,  B01J38/485 ,  B01J2523/00 ,  C07C2521/08 ,  Y02P20/52 ,  Y02P20/584 ,  B01J2523/53 ,  B01J2523/55 ,  B01J2523/64 ,  B01J2523/842 ,  B01J2523/68 ,  B01J2523/69 ,  C07C255/08