| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a nitrile useful as an industrial raw material from an alkaline in high selectivity and in high yield at a comparatively low temperature. SOLUTION: When the nitrile is produced by carrying out a catalytic vapor phase oxidation of an alkane in the coexistence of oxygen and ammonia, a cattiest represented by the formula; Moa Vb Sbc Xx On [X is one or more kinds of metallic elements selected from Ti, Zr, Nb, Ta, Cr, W, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Zn, In, Sn, Pb, Bi, Ce, and an alkaline earth metal; when (a) is 1, 0.02<=(b)<=0.99, 0.001<=(c)<=0.9, 0<=(x)<=0.89 and 0.001<=(c)/(d)<=0.80; (n) is a value decided by the oxidation state of other elements], having a crystalline structure of a specified unit cell parameter, and further having a multicomponent oxide which has a specific, main and powdery X-ray diffraction peak. |
