| 对硝基氯苯液相加氢还原的研究 |
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| 引用本文： | 胡卫东,董学亮,徐丹,余学军,宋传君.对硝基氯苯液相加氢还原的研究[J].河南科学,2013(11):1866-1869. |
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| 作者姓名： | 胡卫东 董学亮 徐丹 余学军 宋传君 |
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| 作者单位： | [1]河南省科学院高新技术研究中心,郑州450002 [2]郑州大学化学与分子工程学院,郑州450001 |
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| 摘 要： | 较系统地研究了液相加氢法合成对氯苯胺，着重研究了加氢反应的催化剂、溶剂、脱卤抑制剂及反应的温度、压力等主要工艺参数对反应的影响.对硝基氯苯液相催化加氢还原制备对氯苯胺的反应中选用1％Pd/C为催化剂，工业酒精为溶剂，吗啉为脱卤抑制剂，加氢反应温度80～90℃，压力1 MPa .在此条件下反应2．60 h，对硝基氯苯的转化率为100％，对氯苯胺的实际收率可达95％.催化剂连续使用5次，其性能没有明显下降.
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| 关 键 词： | 催化加氢 对硝基氯苯 对氯苯胺 |
Study on Liquid Phase Hydrogenation of P-chloronitrobenzene |
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| Hu Weidong,Dong Xueliang,Xu Dan,Yu Xuejun,Song Chuanjun.Study on Liquid Phase Hydrogenation of P-chloronitrobenzene[J].Henan Science,2013(11):1866-1869. |
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| Authors: | Hu Weidong Dong Xueliang Xu Dan Yu Xuejun Song Chuanjun |
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| Institution: | 1. High ＆ New Technology Research Center, Henan Academy of Science, Zhengzhou 450002, China; 2. College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China) |
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| Abstract: | Liquid phase hydrogenation of p-chloronitrobenzene to synthesize p-chloroaniline is systematically studied,and we mainly focused on the influence of catalysts,solvent,dehalogenation inhabitant and reaction pressure. Under the optimized condition,i.e. 1% Pd/C as catalyst,industrial spirit as solvent,morpholine as dehalogenation inhabitant,with reaction temperature 80~90℃,reaction pressure 1 MPa and reaction time 2.60 h,the conversion ratio of p-nitrochlorobenzene is 100%,with the yield of p-chloroaniline 95%. The catalyst can serve well after 5 successive uses. |
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| Keywords: | catalytic hydrogenation p-chloronitrobenzene p-chloroaniline |
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