Ｐｔ／Ｃ催化剂催化硝基苯加氢制对氨基苯酚工艺过程剖析

本文介绍了硝基苯催化加氢制对氨基苯酚的研究概况；探讨了在加氢工艺路线中的若干技术关键，如温度、氢分压、ｐＨ值及加氢深度等；评述了添加助剂提高对氨基苯酚收率的方法，并对其优缺点进行了讨论。

Technological analysis on the process for preparation of p-aminophenol over Pt/C

Researches in the processes for preparation of p-aminophenol through catalytic hydrogenation of nitrobenzene were reviewed.Influence of some key parameters,such as temperature,parcial pressure of hydrogen,pH value and hydrogenation degree,was discussed.The advantages and disadvantages of adding promotor to improve the yield of aminophenol were also discussed.