A. Martin et al., THE ROLE OF AMMONIUM-IONS DURING TOLUENE AMMOXIDATION ON ALPHA-(NH4)(2)[(VO)(3)(P2O7)(2)] USED AS CATALYST, Applied catalysis. A, General, 139(1-2), 1996, pp. 11-16
Isotopic transient experiments in vacuum of the ammoxidation of toluen
e were carried out, applying the temporal-analysis-of-products reactor
(TAP) using alpha-((NH4)-N-14)(2)[(VO)(3)(P2O7)(2)] as catalyst and (
NH3)-N-15-containing ammoxidation feed gas. The study revealed the par
ticipation of ammonium ions in the N-insertion step during benzonitril
e formation. The benzonitrile formed during the ammoxidation pulses is
composed of the N-14- and N-15-product, The share of the N-15-benzoni
trile increased with pulse number.