| 摘要 |
A fluidized bed catalyst for producing acrylonitrile capable of maintaining a high yield of acrylonitrile over a long time, and a process for producing acrylonitrile using the catalyst are provided. A fluidized bed catalyst for producing acrylonitrile having a composition represented by a following general formula:
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒMo a Bi b Fe c W d Ni e Mg f A g B h C i D j E k F l G m O n (SiO 2 ) p
In the formula, A represents Ce and La, B represents Ca, Sr, Ba, Mn, Co, Cu, Zn and Cd, C represents Y, Pr, Nd, Sm, Al, Cr, Ga and In, D represents Ti, Zr, V, Nb, Ta, Ge, Sn, Pb and Sb, E represents Ru, Rh, Pd, Re, Os, Ir, Pt and Ag, F represents P, B and Te, G represents Li, Na, K, Rb, Cs and Tl, SiO 2 represents silica, when a = 10, b = 0.1 to 1.5, c = 0.5 to 3, d = 0.1 to 1.5, e = 0.1 to 8, f = 0.1 to 5, g = 0.1 to 1.5, h = 0 to 8, 1 = 0 to 3 j = 0 to 3, k = 0 to 3, 1 = 0 to 3, m = 0.01 to 2, p = 10 to 200 and n is the atomic ratio of oxygen required to satisfy the valence of each of the elements excluding silicon, and (ax2 + d×2)/(b×3 + c×3 + ex2 + f×2 + g×3 + h×2 + i×3 + m×1)= 0.90 to 1.00). |
