| 摘要 |
PURPOSE:To obtain a catalyst having high activity, high selectivity and long life, by constituting a catalyst forming acrylonitrile from C3H6, NH3 and O2 from a catalyst containing Mo, Bi, Pb, Sb, Cr, O or, further, W, Fe in a specific ratio. CONSTITUTION:A catalyst composition is shown by formula (wherein a-h show atomic numbers of each components, when a+b+c is equal to 12, (b) is 0-7, (c) is 0.4-7, (d) is 2-12, e/a is 0.1/22-25/22, (f) is 0-3/22, g/a is above 0-3/22, (h) is an atomic number required in satisfying the valency of each component). This catalyst shows excellent catalytic effect in reaction for forming acrylonitrile by contacting C3H6, NH3 and O2 or an O2-containing gas in a gas phase. That is, even under a condition of high C3H6 reaction efficiency, acrylonitrile can be prepared at high yield and the life of the catalyst is also long. |
