| 固体超强酸TiO_2/SO_4~(2-)催化合成水杨酸乙酯 |
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| 引用本文： | 郭海福,梁永福,孙智明,赵薇.固体超强酸TiO_2/SO_4~(2-)催化合成水杨酸乙酯[J].精细石油化工,1997(3). |
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| 作者姓名： | 郭海福 梁永福 孙智明 赵薇 |
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| 作者单位： | 内蒙古工业大学化工系!呼和浩特，010062，内蒙古工业大学化工系!呼和浩特，010062，内蒙古工业大学化工系!呼和浩特，010062，内蒙古大学化学系 |
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| 摘 要： | 研究了以固体超强酸 Ti O2 /SO2 - 4 为催化剂 ,水杨酸和乙醇为原料合成水杨酸乙酯 ,并考察了醇酸比、催化剂用量、反应时间、反应温度对酯产率的影响。结果表明 ,在水杨酸用量为 0 .1 mol的情况下用固体超强酸Ti O2 /SO2 - 4 为催化剂 ,催化剂用量为 1 .0 g,乙醇与水杨酸的摩尔比为 3∶ 1或 4∶ 1 ,反应时间为 5h,反应温度 95～ 1 0 0℃是最适宜的反应条件 ,酯产率达 89%。
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| 关 键 词： | 固体超强酸TiO2/SO2-4 水杨酸乙酯 酯化 水杨酸 乙醇 |
SYNTHESIS OF ETHYL SALICYLATE BY TiO_2/SO_4~( 2-) SOLID SUPER STRONG ACID |
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| Guo Haifu,Liang Yongfu and Sun Zhiming.SYNTHESIS OF ETHYL SALICYLATE BY TiO_2/SO_4~( 2-) SOLID SUPER STRONG ACID[J].Speciality Petrochemicals,1997(3). |
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| Authors: | Guo Haifu Liang Yongfu and Sun Zhiming |
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| Abstract: | The synthesis of ethyl salicytate with alcohol and salicylic acid as reactants and solid super acid TiO 2/SO 2- 4 as catalysts has been studied.The influent conditions of reactants on the yield of estes,such as the molar ratio of alcohol to salicylic acid,the amount of catalyst used,the reaction time and the reaction temperature,are investigated.The result shows that the appropriate conditions should be: Weight of catalyst:1.0 grammer(weight of salicylic acid if 0.1 molar); molar ratio of alcohol to salicylic acid:3∶1 or 4∶1; reaction time: 5 hours; reaction temperature: 95～100 ℃; The yield of ethyl sallcylate is about 89%. |
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| Keywords: | solid super acid TiO 2/SO 2- 4 esteiification ethgl salicylate salicylic acid alcohol |
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