| SiO_2负载全氟磺酸树脂催化合成对硝基苯甲酸乙酯 |
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| 引用本文： | 罗士平,张明辉,郭俊,裘兆蓉.SiO_2负载全氟磺酸树脂催化合成对硝基苯甲酸乙酯[J].化学世界,2010,51(5). |
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| 作者姓名： | 罗士平 张明辉 郭俊 裘兆蓉 |
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| 作者单位： | 江苏工业学院江苏省精细石油化工重点实验室,江苏,常州,213164 |
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| 摘 要： | 将回收的全氟磺酸离子交换膜制成全氟磺酸树脂溶液,利用溶胶-凝胶法得到全氟磺酸树脂/二氧化硅复合催化剂,并用FT IR,DSC-TG,BET等对其进行表征。将该催化剂用于合成对硝基苯甲酸乙酯,当物料比为n(对硝基苯甲酸)∶n(乙醇)=1∶6,催化剂用量为反应物料的10%(质量分数),反应温度为78~82°C,反应时间2.5 h时,对硝基苯甲酸乙酯收率可达85.2%。
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| 关 键 词： | 全氟磺酸离子交换膜 对硝基苯甲酸乙酯 酯化 |
Synthesis of Ethyl p-Nitrobenzoate Catalyzed by Perfluorosulfonic Acid Resin/Silica Composite |
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| LUO Shi-ping,ZHANG Ming-hui,GUO Jun,QIU Zhao-rong.Synthesis of Ethyl p-Nitrobenzoate Catalyzed by Perfluorosulfonic Acid Resin/Silica Composite[J].Chemical World,2010,51(5). |
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| Authors: | LUO Shi-ping ZHANG Ming-hui GUO Jun QIU Zhao-rong |
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| Abstract: | The used perfluorosulfonic acid ion-exchange membrane was recycled by turning into a solution of perfluorosulfonic acid resin.The perfluorosulfonic acid resin/silica composite catalyst was prepared by a sol-gel method,and was characterized by FT IR,DSC-TG,BET measurements.The composite catalyst obtained was used in esterification of p-nitrobenzoic acid.The results showed that at n(p-nitrobenzoic acid)∶n(alcohol)=1∶6, w(catalyst)=10% of feed stock and reaction time of 2.5 h,ethyl pnitrobenzoate could be obtained with a yield of 85.2%. |
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| Keywords: | perfluorosulfonic acid ion-exchange membrane ethyl p-nitrobenzoate esterification |
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