本文报导了气相催化合成N·N-二甲基对甲苯胺的方法,其特点是原料价廉易得,设备简单,反应在常压下进行,操作简易,并能连续生产。同时讨论了温度、空速、原料配比对收率的影响。 This paper reports the gas-phase catalytic synthesis of N · N-dimethyl-p-toluidine method, which is characterized by inexpensive raw materials, simple equipment, the reaction at atmospheric pressure, easy to operate, and continuous production. The effects of temperature, space velocity and ratio of raw materials on yield were also discussed.