摘要
以间苯二胺为原料,硫酸为催化剂,高压水解制得间氨基苯酚.考察了反应温度、反应时间、硫酸质量分数及硫酸与间苯二胺的摩尔比对反应的影响.实验结果表明,当反应温度200℃,反应时间6 h,硫酸质量分数为22%,硫酸与间苯二胺的摩尔比为1.98∶1时,间苯二胺的转化率为81.19%,间氨基苯酚的收率为56.34%,选择性为69.38%,副产物间苯二酚的收率为24.13%.
M-aminophenol（MAP） was prepared from m-phenylenediamine through the catalysis of sulfuric acid at obturational situantion. The effect of reaction temperature, time, moler ratio and the concentration of sulfuric acid was explored through kinetic experiment, and the result showed that the concentration of acid 22%, reaction temperature 200 ℃, the mole ratio of m - phenylenediamine to acid 1 ： 1.98, reaction time 6 h was the best reation condition. Under these conditions the conversion of m-phenylenediamine acid could reach up to 81.19%, and the yield and selectivity of MAP was 56.34% and 69.38%, respectively, and the yield of by-product resorcinol was 24.13%.
出处
《天津理工大学学报》
2009年第1期45-48,共4页
Journal of Tianjin University of Technology
基金
天津市自然科学基金(033700411)
关键词
间氨基苯酚
间苯二胺水解
合成
m-aminophenol
hydrolysis of m-phenylenediamine
synthesis
