Process for producing unsaturated aliphatic dinitriles

摘要

Unsaturated aliphatic dinitriles such as fumaronitrile and maleonitrile can be produced in high yields by ammoxidation of C4 straight-chain hydrocarbons in the presence of a catalyst containing as active components: [A] at least one kind of oxides of vanadium and tungsten, and [B] (1) at least one kind of oxides of antimony, phosphorus and boron, and/or (2) at least one kind of oxides of chromium, nickel, aluminum and silicon.