| 摘要 |
The present invention relates to, in a method for producing acrylonitrile or acrylic acid by reacting propane with ammonia and oxygen for gas phase catalytic oxidation in the presence of a metal oxide catalyst containing vanadium and at least one member selected from tellurium, antimony and molybdenum, a method for simultaneous production of acrylonitrile and acrylic acid, characterized by simultaneously producing acrylonitrile and acrylic acid by adjusting the molar ratio of propane to ammonia to from 2 to 10 and the molar ratio of oxygen to ammonia to from 2 to 10. According to the method of the present invention, in the ammoxidation reaction of propane, the reaction is carried out by selecting the molar ratio of propane to ammonia and the oxygen ratio, whereby acrylonitrile and acrylic acid can be produced at high selectivity and in high yield in a total amount. Further, the catalytic activities can be maintained for a long period of time, whereby the reaction can be carried out efficiently and constantly for a long period of time. |
