Title:
A manufacturing method of acrylonitrile
Document Type and Number:
Japanese Patent JP6264282
Kind Code:
B2
Abstract:
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.
Inventors:
Hirokazu Watanabe
Yanagita Motoo
Takashi Karasuda
Kazushi Nishida
Kenichi Miyaki
Yanagita Motoo
Takashi Karasuda
Kazushi Nishida
Kenichi Miyaki
Application Number:
JP2014502232A
Publication Date:
January 24, 2018
Filing Date:
February 26, 2013
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C07C253/26; B01J23/88; C07B61/00; C07C255/08
Domestic Patent References:
| JP2001114740A | ||||
| JP2001187772A | ||||
| JP2002306968A | ||||
| JP2009207974A |
Foreign References:
| WO2000072964A1 | ||||
| US3472892 |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Suzuki Mitsuyoshi
Tadashi Takahashi
Suzuki Mitsuyoshi