| 第 32 卷第 6 期 |  | Vol. 32 No. 6 | | 2002 年 12 月 | Dec 2002 |
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所属栏目：其它
稀土复合固体酸SO_4~(2-)/TiO_2/La~(3+)催化合成马来酸二辛酯 |
| 华平; 李建华; 施磊(南通工学院化工系; 226007) |
| 摘 要：研究了固体超强酸SO2 - 4/TiO2 /La3+用于合成马来酸二辛酯。并与硫酸对甲苯磺酸的催化效果比较。考察了Ti/La物质量比、硫酸浓度、焙烧温度对催化剂活性和反应时间对酯化反应的影响。结果表明 :当Ti/La物质量比为 6∶1、浸渍液硫酸浓度为 1 8mol/L、在5 5 0℃下焙烧时具有最高的催化活性 ,用于马来酸酐和正辛醇的酯化反应可得无色透明的酯化产物 ,3h内酯化率达 96 9%。 |
| 关键词：固体超强酸; 催化剂; 马来酸二辛酯 |
| 中图分类号： 文献标识码： 文章编号：1009-9212(2002)06-0029-03 |
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| Synthesis of Dioctyl Meleate by Solid Super Acid SO_4~(2-)/TiO_2/La~(3+) Catalyst |
| HUA Ping; et at. （Departement of Chemical Engineering; Nantong Institute of Technology; Nantong; 226007; China） |
| Abstract：Solid super acid catalyst SO 2- 4/TiO 2/La 3+ was prepared and used in synthesizing dioctyl maleate, in comparison with sulfur acid and p-toluene sulfonic acid. The effects of prepared conditions such as the sulfur acid concentration, the temperature and time of bakring on catalytic activity and reaction time on esterifi-calion. The results shew that the catalyst had splendid catalytic activity for the synthesis of dioctyl maleale, immersing 10 hours in 1.8 mol/L. sulfur acid solution, baking 3 ... |
| Key words：solid super acid; dioclyl melate; esteralificalion |
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收稿日期：2002-04-04
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