TITLE:
Synthesis of 4-Phenylphthalonitrile by Vapor-Phase Catalytic Ammoxidation of Intermediate 4-Phenyl-o-Tolunitrile: Reaction Kinetics
AUTHORS:
G. A. Bagirzade, D. B. Tagiyev, M. R. Manafov
KEYWORDS:
Catalytic Ammoxidation; Partial Pressures; 4-Phenylphthalimide; Vapor-Phase; Electron-Donorship; Kinetic Measurements
JOURNAL NAME:
Modern Research in Catalysis,
Vol.3 No.1,
January
7,
2014
ABSTRACT: Kinetic regularities
of 4-phenyl-o-tolunitrile
ammoxidation on V-Sb-Bi-Zr/γ-Al2O3 oxide catalyst in the temperature interval 633 - 673 K have been studied. It
has been established that rates of conversion of 4-phenyl-o-tolu- nitrile into the aimed 4-phenylphthalonitrile and CO2 are described by half-order equation on concentration of substratum
and to be independent of the oxygen and ammonia partial pressures. It has been
revealed that formation of 4-phenylphthalimide from byproducts is due to
hydrolysis of 4-phenylphthalonitrile; carbon dioxide is produced by oxidation
of 4-phenyl-o-tolunitrile and
decarboxylation of 4-phenylphthalimide, and 4-phenylben- zonitrile is produced
from 4-phenyl-o-tolunitrile and
4-phenylphthalimide.