| 微通道反应器内氯苯硝化反应研究 |
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| 引用本文： | 余武斌,高建荣,李郁锦,贾建洪,韩非. 微通道反应器内氯苯硝化反应研究[J]. 精细化工, 2010, 27(1) |
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| 作者姓名： | 余武斌 高建荣 李郁锦 贾建洪 韩非 |
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| 作者单位： | 浙江工业大学,绿色化学合成技术国家重点实验室培育基地,浙江,杭州,310032 |
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| 基金项目： | 浙江省自然科学基金资助项目(Y407306)~~ |
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| 摘 要： | 在微通道反应器内对氯苯硝化反应进行了研究,考察了氯苯与硝酸的摩尔比、体积流速、反应温度等对单程转化率及选择性的影响。实验选择了较优工艺参数组合:n(氯苯)∶n(硝酸)=1∶1.3,n(硝酸)∶n(硫酸)=1∶3,氯苯体积流速0.5 mL/min,反应温度80℃,氯苯单程转化率达74.8%,n(邻硝基氯苯)∶n(对硝基氯苯)=0.56∶1,时空转化率(STC)达4.07×109mol/(m3.h)。微通道反应器内,时空转化率是常规反应器的3.08×104倍。
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| 关 键 词： | 微通道反应器 硝基氯苯 硝化反应 时空转化率 精细化工中间体 |
Study on the Nitration of Chlorobenzene in Microreactor |
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| YU Wu-bin,GAO Jian-rong,LI Yu-jin,JIA Jian-hong,HAN Fei. Study on the Nitration of Chlorobenzene in Microreactor[J]. Fine Chemicals, 2010, 27(1) |
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| Authors: | YU Wu-bin GAO Jian-rong LI Yu-jin JIA Jian-hong HAN Fei |
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| Affiliation: | State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology/a>;Zhejiang University of Technology/a>;Hangzhou 310032/a>;Zhejiang/a>;China |
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| Abstract: | The nitration of chlorobenzene was investigated in a microchannel reactor.The effects of the ratio of chlorobenzene to nitric acid,current capacity,and the reaction temperature on the single-pass conversion and selectivity were evaluated.The optimum process parameters were selected as follows: molar ratio of nitric acid to chlorobenzene 1.3:1,molar ratio of nitric acid to sulfuric acid 1:3,current capacity of chlorobenzene 0.5 mL·min~(-1),reaction temperature 80 ℃.The single-pass conversion of chlorobenzene reached 74.8%.The ratio of o-nitrocholobenzene to p-nitrocholobenzene was about 0.56.The space-time conversion (STC) in the microreactor was about 3.08×10~4 times higher than that in the conventional reactor. |
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| Keywords: | microchannel reactor nitrochlorobenzene nitration space-time conversion rate fine chemical intermediates |
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