| 固体超强酸催化合成对羟基苯甲酸乙酯的研究 |
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| 引用本文： | 秦正龙,孟庆华.固体超强酸催化合成对羟基苯甲酸乙酯的研究[J].精细化工,1997,14(6):23-25. |
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| 作者姓名： | 秦正龙 孟庆华 |
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| 作者单位： | 徐州师范大学化学系 |
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| 摘 要： | 以固体超强酸ＳＯ４２－／ＴｉＯ２为催化剂，４Ａ分子筛作脱水剂，合成了对羟基苯甲酸乙酯。应用该方法，酯化反应产率高达８４％，同时对影响产率的诸因素进行了考察，其最佳反应条件为：醇酸摩尔比４∶１，催化剂用量９％，反应时间３ｈ，反应温度１１５～１３５℃。
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| 关 键 词： | 固体超强酸，催化剂，合成，对羟基苯甲酸乙酯 |
Research on Synthesis of Ethyl-p-Hydroxyl- Benzoate with Solid Super Strong Acid as Catalyst |
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| Abstract: | Ethyl p hydroxyl benzoate was synthesized with SO_4~(2-)/TiO 2 as catalyst and 4A molecular sieve as dehydration.Factors influencing yield were discussed.The optimum reaction conditions are alcohol/acid mole ratio 4∶1,catalyst amount 9%,reaction time 3h and temperature 115～135℃.The yield under the optimum conditions was up to 84%. |
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| Keywords: | solid super strong acid catalytic agent synthesis ethyl p hydroxyl benzoate |
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