| 摘要 |
PURPOSE:To control the by-production of acrolein or methacrolein by using a catalyst composition for ammo-oxidation in which alkali metals, rare earth metals, etc., are incorporated into basic components of molybdenum, bismuth, cesium, iron, and zinc. CONSTITUTION:A catalyst composition for ammo-oxidation is used which has an atomic ratio shown by the general formula Mo12Bi(a)Ce(b)Fe(c) Zn(d)X(e)Y(f)Z (g)A(h)O(i) (X is Ni, Co, etc.; Y is Na, K, etc.; Z is Ge, Sn, etc.; A is Ru, Rh, etc.; and (a)=0.1-10, (b)=0.1-10, (c)=0.1-12, (d)=0.1-12, (e)=0.1-12, (f)=0.01-5, (g)=0-4, (h)=0.2, and (i) is the number of oxygen atom necessary for satisfying the valency requirements of other existing elements). The catalyst is effective in the production of acrylonitrile, etc., by the reaction of propylene, etc., oxygen molecules, and ammonia, controlling the by-production of acrolein, etc., and preventing clogging and scale. |
