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

›› 2009, Vol. 17 ›› Issue (3): 412-418.

• CATALYSIS, KINETICS AND REACTORS • Previous Articles Next Articles

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

SHEN Jiani^1,2, ZHAO Yuchao¹, CHEN Guangwen¹, YUAN Quan¹

1. Dalian National Laboratory for Clean Energy,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023, China;
2. Graduate University, Chinese Academy of Sciences, Beijing 100049, China

Received:2009-01-23 Revised:2009-04-13 Online:2009-06-28 Published:2009-06-28
Supported by:
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)

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

沈佳妮^1,2, 赵玉潮¹, 陈光文¹, 袁权¹

1. Dalian National Laboratory for Clean Energy,Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Dalian 116023, China;
2. Graduate University, Chinese Academy of Sciences, Beijing 100049, China

通讯作者: CHEN Guangwen,E-mail:gwchen@dicp.ac.cn
基金资助:
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)

Abstract

Abstract: In this paper, the nitration characteristic of alcohols with mixed acid for the synthesis of energetic materials 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 conducted safely and stably in the microreactor at 25-40℃, which are enhanced compared to 15℃ 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.

Key words: nitration, 2-ethylhexyl nitrate, microchannel, micromixer, microfluidic

摘要： In this paper, the nitration characteristic of alcohols with mixed acid for the synthesis of energetic materials 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 conducted safely and stably in the microreactor at 25-40℃, which are enhanced compared to 15℃ 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

SHEN Jiani, ZHAO Yuchao, CHEN Guangwen, YUAN Quan. Investigation of Nitration Processes of iso-Octanol with Mixed Acid in a Microreactor[J]. , 2009, 17(3): 412-418.

沈佳妮, 赵玉潮, 陈光文, 袁权. Investigation of Nitration Processes of iso-Octanol with Mixed Acid in a Microreactor[J]. , 2009, 17(3): 412-418.

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

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

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