| 摘要 |
PURPOSE:To obtain acrylonitrile in good yield, by carrying out catalytic ammoxidation of propylene in the vapor phase in the presence of a catalyst containing molybdenum, bismuth, iron, antimony, nickel and alkaline metal. CONSTITUTION:Propylene is reacted with ammonia and oxygen using a catalyst having a composition thereof expressed by the formula (R is Na or K; q, r, a, b, c, d and e represent atomic ratios and q=0-3; r=0.01-1.5; a=0.1-3; b=0.1-2.5; c=5-30; d=4-8 and e is a number corresponding to oxide formed by binding the above-mentioned respective components when the atomic ratio of Mo is assumed as 10) at 380-500 deg.C temperature under ordinary pressure-3 kg/cm<2>.G pressure to afford the aimed substance. the oxygen, propylene and ammonia are used at a molar ratio of oxygen/propylene within the range of 1-4 and the molar ratio of ammonia/propylene within the range of 0.8-3 to carry out the reaction. This catalyst is obtained at a relatively low cost, since expensive components are not contained in constituent components. |
