Mixed Oxides with Rutile Type Structure Active in Ammoxidation to Acrylonitrile

摘要

The reactivities of the V/Sb/O catalytic system, characterized by the rutile type structure SbVO_4, and of iso-structural Sn/Sb/O, Fe/Sb/O and Ti/Sb/O samples were tested with respect to propane and propylene ammoxidation, in order to understand the particular characteristics of each single system. Owing to the activation property of vanadium, three ternary samples (Sn/V/Sb/O, Fe/V/Sb/O and Ti/V/Sb/O) were prepared and characterized with respect to propane ammoxidation, in order to mix the properties of each binary system with V/Sb/O and to synthetize a new catalyst active and selective in the direct functionalization of the paraffin.