| 甲酸-H_2O_2物系氧化苯乙烯制苯甲酸 |
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| 引用本文： | 孙琪,王丽润,崔岩.甲酸-H_2O_2物系氧化苯乙烯制苯甲酸[J].辽宁师范大学学报(自然科学版),2011,34(2). |
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| 作者姓名： | 孙琪 王丽润 崔岩 |
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| 作者单位： | 辽宁师范大学化学化工学院,辽宁大连,116029 |
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| 基金项目： | 辽宁省高校创新团队项目(2008T106) |
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| 摘 要： | 在无催化剂的条件下,采用不同物系进行了苯乙烯氧化反应制得苯甲酸的研究.考察了物系种类、H2O2用量、反应温度、反应时间、反应物的加入方式等因素对该反应的影响.结果表明:在甲酸-H2O2物系中,苯乙烯被氧化生成苯甲酸.在此物系中,随甲酸用量的增加,反应时间的延长,反应温度的升高,苯乙烯的转化率升高,苯甲酸的选择性先增加后减小;加料顺序和酸的种类也影响苯乙烯氧化的转化率和选择性.氧化苯乙烯制苯甲酸反应的优化条件为:甲酸-H2O2物系,采用先加入苯乙烯和甲酸再滴加H2O2的加料方式,过氧化氢38.4 mmol,苯乙烯6.4 mmol,甲酸38.4 mmol,反应温度80℃,反应时间5 h.在此条件下,苯乙烯的转化率为100%,苯甲酸的选择性达到91.4%.
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| 关 键 词： | 甲酸 过氧化氢 苯乙烯 苯甲酸 氧化反应 |
Oxidation of styrene by formic acid-H_2O_2 system |
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| SUN Qi,WANG Li-run,CUI Yan.Oxidation of styrene by formic acid-H_2O_2 system[J].Journal of Liaoning Normal University(Natural Science Edition),2011,34(2). |
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| Authors: | SUN Qi WANG Li-run CUI Yan |
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| Institution: | SUN Qi,WANG Li-run,CUI Yan(School of Chemistry and Chemical Engineering,Liaoning Normal University,Dalian 116029,China) |
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| Abstract: | Oxidation of styrene was studied using different systems in the absence of catalyst.Effects of the composition of the system,formic acid-H2O2 mole ratio,reaction temperature,reaction time and operating procedures on oxidation of styrene were investigated.The results indicated that the oxidation production of styrene was benzoic acid in formic acid-H2O2 system.With the increase in H2O2 dosage,reaction time and reaction temperature,the conversion of styrene increased and the selectivity to benzoic acid increa... |
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| Keywords: | formic acid hydrogenperoxide styrene benzoic acid oxidation |
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