| 分子筛负载TiO2／SO4^2—催化合成乙二醇单乙醚乙酯 |
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| 引用本文： | 赵立芳,何柱生.分子筛负载TiO2／SO4^2—催化合成乙二醇单乙醚乙酯[J].应用化工,2001,30(1):32-33. |
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| 作者姓名： | 赵立芳 何柱生 |
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| 作者单位： | 宝鸡文理学院 化学化工系, |
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| 摘 要： | 采用液相沉积法制备了由分子筛负载TiO2/SO4^2-的固体超强酸催化剂，考察了该催化剂对乙二醇单乙醚与乙酸酯化的反应条件：反应物醇酸摩尔比1：1.3，催化剂用量5％（以乙二醇单乙醚质量为基准），催化剂活化温度550℃，并以此条件合成了乙二醇单惭醚乙酯，产率为84.6％。
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| 关 键 词： | 乙二醇单乙醚乙酯 固体超强酸 二氧化钛 催化剂 分子筛 催化合成 |
| 文章编号： | 1007-4325(2001)01-0032-02 |
| 修稿时间： | 2000年11月29 |
Synthesis of ethylene
glycol monoethyl ether acetate by TiO2/SO2-4 to be
carried by molecular sieves |
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| ZHAO Li-fang.Synthesis of ethylene
glycol monoethyl ether acetate by TiO2/SO2-4 to be
carried by molecular sieves[J].Applied chemical industry,2001,30(1):32-33. |
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| Authors: | ZHAO Li-fang |
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| Abstract: | The solid superacid TiO2/SO2-4 to be carried by molecular sieveswas made by the liquid-phase precipitation, its catalytic activity is investigated to esterifaction of ethylene glycol monoethyl ether and acetic acid. The optimum conditions of the esterifaction by orthoyonal experiments were studied. The result showed that the most active temperature of catalyst is 550 ℃, its weight is 5% (based on quality of ethylene glycol monoethyl ether), the mole ratio of alcohol to acid is 1∶1.3. At last ethylene glycol monoethyl ether acetate were synthesized on these conditions, the ester yield is up to 84.6%. |
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