This paper introduces a new technology for directly reducting nitrobenzene to p-aminophenol by using zinc powder. The reaction mechanism, technological process and economic balance are analyzed.

• 利用锌粉在氯化铵体系中直接还原硝基苯,制得苯胲中间体,在硫酸介质中选择性重排生产对氨基苯酚。试验表明该工艺简单,成本低,节省能耗,产品质量合格,三废污染小,具有一定社会与经济效益。