| abstract |
Unsaturated aliphatic dinitriles such as fumaronitrile and maleonitrile can be produced in high yields by ammoxidation of C 4 straight-chain hydrocarbons in the presence of a catalyst containing as active components: n [A] at least one kind of oxides of vanadium and tungsten, and n [B] n (1) at least one kind of oxides of antimony, phosphorus and boron, and/or n (2) at least one kind of oxides of chromium, nickel, aluminum and silicon. |