Synthesis of 4-Phenylphthalonitrile by Vapor-Phase Catalytic Ammoxidation of Intermediate 4-Phenyl-<i>o</i>-Tolunitrile: Reaction Kinetics

• 作者: D. B. Tagiyev G. A. Bagirzade M. R. Manafov
• 来源期刊: 催化剂现代研究(英文)
• 学科: 化学
• 关键词: CATALYTIC AMMOXIDATION Partial Pressures 4-Phenylphthalimide VAPOR-PHASE Electron-Donorship Kinetic Measurements
• 年，卷（期）: 2014,（1）
• 页码范围: 6-11
• 页数: 6页
• 分类号: O6

摘要

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.