Investigation of Nitration Processes of iso-Octanol with Mixed Acid in a Microreactor  

微通道反应器内异辛醇混酸硝化过程行为(英文)

作　　者：沈佳妮 赵玉潮 陈光文 袁权 

机构地区：[1]Dalian National Laboratory for Clean Energy,Dalian Institute of Chemical Physics,Chinese Academy of Sciences [2]Graduate University,Chinese Academy of Sciences

出　　处：《Chinese Journal of Chemical Engineering》2009年第3期412-418,共7页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China (20490208);the National High Technology Research and Development Program of China (2007AA030206);the Open Fund of State Key Laboratory of Explosion Science and Technology,BIT (KFJJ06-1)

摘　　要：In this paper, the nitration characteristic of alcohols with mixed acid for the synthesis of energetic mate-rials in a stainless steel microreactor was investigated experimentally. The nitration of iso-octanol with HNO3-H2SO4 mixed acid was chosen as a typical model reaction which involved fast and strong exothermic liquid-liquid heterogeneous reaction process. The influences of mixed acid composition, flow rate, organic/aqueous flow ratio and reaction temperature have been investigated. The results indicated that the reaction could be con-ducted safely and stably in the microreactor at 25-40°C, which are enhanced compared to 15°C or below for safe operating conditions in the conventional reactors. Moreover, the 98.2% conversion of iso-octanol could be obtained and no by-products were detected in all cases.In this paper, the nitration characteristic of alcohols with mixed acid for the synthesis of energetic mate-rials in a stainless steel microreactor was investigated experimentally. The nitration of iso-octanol with HNO3-H2SO4 mixed acid was chosen as a typical model reaction which involved fast and strong exothermic liquid-liquid heterogeneous reaction process. The influences of mixed acid composition, flow rate, organic/aqueous flow ratio and reaction temperature have been investigated. The results indicated that the reaction could be con-ducted safely and stably in the microreactor at 25-40°C, which are enhanced compared to 15°C or below for safe operating conditions in the conventional reactors. Moreover, the 98.2% conversion of iso-octanol could be obtained and no by-products were detected in all cases.

关 键 词：NITRATION 2-ethylhexyl nitrate MICROCHANNEL MICROMIXER microfluidic 

分 类 号：O621.25[理学—有机化学]