| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing an unsaturated nitrile in a high yield, by conducting ammoxidation reaction by the use of a specific metal oxide catalyst containing molybdenum, bismuth, iron, nickel, potassium, etc. SOLUTION: This method for producing an unsaturated nitrile comprises subjecting an organic compound to ammoxidation reaction at, preferably, 370-500 deg.C by the use of a metal oxide catalyst of the formula: MoaBibFecNidKeAfBgChQiRjOk (SiO2)l A is at least one element selected from the group comprising Mg, Ca, Sr and so on; B is at least one element selected from the group comprising Cd, Al, Ga, Sn, Sb and so on; C is at least one element selected from the group comprising Cu, Ag, In, Ge, Nb and so on; Q is at least one element selected from the group comprising P, B(boron) and Te; R is at least one element selected from the group comprising Li, Na, Rb and Cs; (a) to (l) express each an atomic ratio of each element and satisfy (b)=0.2-1.2, (c)=0.1-15, (d)=38, (e)=0.3-0.8, (f)=0-5, (g)=0-8, (h)=0-2, (i)=0-2, (j)=0-0.3, (k) is a number of oxygen atoms required for satisfying atomic valences of each element, (l)=0-200, (e)/(b)=0.6-5, (e)/[(d)+(f)]=0.06-0.2, when (a)=10}. |
