| 间-二硝基苯精制的理论与实践 |
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| 引用本文： | 祁国珍,王贤教.间-二硝基苯精制的理论与实践[J].华东理工大学学报(自然科学版),1987(3). |
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| 作者姓名： | 祁国珍 王贤教 |
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| 作者单位： | 华东化工学院精细化工系
(祁国珍)，华东化工学院精细化工系(王贤教) |
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| 摘 要： | 对芳环上硝基进行亲核置换的反应性作了理论分析,提出了在季铵盐相转移催化剂存在下,使用稀的氢氧化钠溶液精制间-二硝基苯的新方法。收率达97.25%。比亚硫酸钠法提高4%。两法的产品经气相色谱及红外光谱分析,证明质量相同。反应生成的邻硝基苯酚可以回收。废液色浅,COD_(Cr)值下降10倍。
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| 关 键 词： | 硝基化合物 亲核反应 硝基苯酚 硝基苯 净化 相转移催化 间-二硝基苯 |
On the lheory and practice of the purification of m-dinitrobenzene |
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| Qi Guozhen,Wang Xianjiao.On the lheory and practice of the purification of m-dinitrobenzene[J].Journal of East China University of Science and Technology,1987(3). |
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| Authors: | Qi Guozhen Wang Xianjiao |
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| Institution: | Qi Guozhen;Wang Xianjiao Department of fine Chemicals |
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| Abstract: | The new method, using PTC of quaternary ammonium salt in dilute sodium hydro-
xide solution, was used to purify the m-dinitrobenzene. It was put forward from the
nucleophilic reactivity of the NO_2-group of the aromatic ring. The yield of the product
was 97.25% and increased 4% more than by Na_2SO_3 method. The quality of the pro
duct was found satisfactory and is confirmed both by the gas chromatography analysis
and Infra-Red spectrum. o-nitrophenol in the reaction can be recovered. The waste
water is light in color and COD_(Cr) values is lowered by ten times. |
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| Keywords: | nitro compounds nucleophile reactions nitrophenol nitrobenzene purification phase transfer catalysis m-dinitrobenzene |
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