Vapor-phase Nitration of Benzene to Nitrobenzene over Supported Sulfuric Acid Catalyst

作     者：Jing Lin CHEN Wei Guo CHENG Hong Feng LIU Qing Song LIN Lian Hai LU 

作者机构：State Key Laboratory of Fine ChemicalsDalian University of TechnologyDalian 116012 

出 版 物：《Chinese Chemical Letters》 (中国化学快报(英文版))

年 卷 期：2002年第13卷第4期

页      面：311-314页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：Technology Committee of China is gratefully acknowledged 

主　　题：Nitration (vapor-phase) sulfuric acid (supported catalyst) nitrobenzene 

摘      要：Vapor-phase nitration of benzene over solid acid catalyst is expected to be a clean process with no sulfuric acid waste. We investigated this process over solid acidic catalysts utilizing diluted nitric acid (60-70%) as nitrating agent, and found that supported sulfuric acid catalyst exhibited a very high catalytic activity. Under the conditions of reaction temperature 160-170℃, space velocity (SV) 1200 h-1, the yield and the space-time yield (STY) of nitrobenzene (NB) based on HNO3 were more than 98% and 0.75 kg穔gcat-1穐-1 over 10% H2SO4/SiO2 (by weight) catalyst respectively.