摘要
以对硝基甲苯为原料，经氧化，催化氢化合成对氨基本甲酸．考察了反应温度、催化剂的用量及酸度等因素对合成反应的影响，给出了适宜的工艺条件．平均总收率８８％氧化酸度５３％，催化剂用量３％，反应时间４ｈ，反应温度９０％．
p-aminobenzoic acid was synthesized by oxidation and hydrogenation of p-nitrotoluene.The ef- fect of temperature,the amount of catalyst and the concentration of the acid on the reaction were foundstudied.The suitable processing conditions, acidity for oxidation,53%; the ratio of catalyst to feed stock,3%; the retention time for reaction, 4h; reaction temperature, 90℃. Amount yield of avergae 88%.
出处
《石油化工高等学校学报》
CAS
1996年第4期37-38,共2页
Journal of Petrochemical Universities
关键词
对氨基苯甲酸
催化加氢
氧化
催化剂
p-Aminobenzoic acid
Oxidation
Hydrogenation
Pd/C catalyst
