| 锰矿粉氧化1-萘胺合成1,4-萘醌 |
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| 引用本文： | 张天永,杜晶,李彬,王晓.锰矿粉氧化1-萘胺合成1,4-萘醌[J].精细化工,2013,30(3):348-352. |
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| 作者姓名： | 张天永 杜晶 李彬 王晓 |
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| 作者单位： | 天津大学化工学院精细化工系,天津大学化工学院精细化工系,天津大学化工学院精细化工系,天津大学化工学院精细化工系 |
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| 基金项目： | 国家自然科学基金（21103121）；教育部博士点基金（20110032120011） |
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| 摘 要： | 在硫酸介质中1-萘胺先形成硫酸铵盐,再经锰矿粉氧化合成1,4-萘醌。考察了反应温度、反应时间、原料摩尔比、反应介质、硫酸质量分数等因素对产品收率的影响。得到较优的反应条件为:1-萘胺1.8 g、n(1-萘胺)∶n(MnO2)=1∶7、w(H2SO4)=40%的硫酸61 g、反应温度80℃、反应时间3 h。在该条件下,1,4-萘醌的收率59.8%。该法具有操作简单、反应时间短和产物易分离等优点。
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| 关 键 词： | 1-萘胺 MnO2 氧化 1 4-萘醌 精细化工中间体 |
| 收稿时间： | 2012/12/18 0:00:00 |
| 修稿时间： | 2013/1/15 0:00:00 |
Synthesis of 1, 4 - Naphthoquinone by Oxidation of 1-Naphthylamine Using Manganese Ore Powder as Oxidant |
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| ZHANG Tian-yong,DU Jing,Li Bin and Wang Xiao.Synthesis of 1, 4 - Naphthoquinone by Oxidation of 1-Naphthylamine Using Manganese Ore Powder as Oxidant[J].Fine Chemicals,2013,30(3):348-352. |
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| Authors: | ZHANG Tian-yong DU Jing Li Bin and Wang Xiao |
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| Affiliation: | Department of Fine Chemicals, School of Chemical Engineering and Technology, Tianjin University,Department of Fine Chemicals, School of Chemical Engineering and Technology, Tianjin University,Department of Fine Chemicals, School of Chemical Engineering and Technology, Tianjin University |
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| Abstract: | 1,4-Naphthoquinone was prepared by oxidation of 1-naphthylamine with manganese ore powder as oxidant in sulfuric acid, which first reacted with 1-naphthylamine to form the related ammonium sulfate. The effects of reaction temperature, oxidation time, reactant molar ratio, types of acids, concentration of sulfuric acid on the product yield were investigated in detail. The optimal reaction conditions were as follow: 1-naphthylamine 1.8 g, n(1-naphthylamine) : n(MnO2) = 1:7, mass fraction 40% sulfuric acid 61 g, reaction temperature 80°C, reaction time 3 h. The yield of 1,4-naphthoquinone was above 59.8% in this condition. This new developed process has the advantages of convenient operation, easy separation of the product and short productive period. |
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| Keywords: | 1-naphthylamine MnO2 oxidation 1 4-naphthoquinone fine chemical intermediates |
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