| 用磁性SO_4~(2-)/Fe~(2+)Fe_2~(3+)O_4-ZrO_2固体超强酸催化合成柠檬酸三丁酯初探 |
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| 引用本文： | 行春丽,成战胜.用磁性SO_4~(2-)/Fe~(2+)Fe_2~(3+)O_4-ZrO_2固体超强酸催化合成柠檬酸三丁酯初探[J].精细石油化工,2004(3):4-6. |
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| 作者姓名： | 行春丽 成战胜 |
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| 作者单位： | 焦作大学生化与环境工程系，焦作大学生化与环境工程系 焦作 454003，焦作 454003 |
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| 基金项目： | 政府基金项目(2000-26)。 |
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| 摘 要： | 用磁性材料与对固体超强酸组合,制备出磁性SO42-/Fe2+Fe23+O4-ZrO2固体超强酸催化剂,并用于柠檬酸三丁酯的合成反应进行了活性测试和催化剂回收实验。得到最佳反应条件为:丁醇／柠檬酸(摩尔比)=3.7:1,反应温度为150℃,反应时问5 h,w(催化剂)=1.2％,柠檬酸的转化率达96％。可利用外加磁场将催化剂从产物中迅速分离,回收率达83.2％,并且催化剂能重复使用。
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| 关 键 词： | 磁性固体超强酸 催化 柠檬酸三丁酯 |
A PRELIMINARY STUDY ON MAGNETIC SOLID SUPERACID SO_4~2-/Fe~(2+)Fe_2~(3+)O_4-ZrO_2 FOR CATALYTIC SYNTHESIS OF TRIBUTYL CITRATE |
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| Xing Chunli and Cheng Zhansheng.A PRELIMINARY STUDY ON MAGNETIC SOLID SUPERACID SO_4~2-/Fe~(2+)Fe_2~(3+)O_4-ZrO_2 FOR CATALYTIC SYNTHESIS OF TRIBUTYL CITRATE[J].Speciality Petrochemicals,2004(3):4-6. |
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| Authors: | Xing Chunli and Cheng Zhansheng |
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| Abstract: | Magnetic solid superacid SO42-/Fe2+Fe2+O4-ZrO2 was prepared by magnetic modification on solid superacids, and then it was used as catalyst in the tributyl citrate TBC synthesis. The experimental results showed that the appropriate synthetic conditions for TBC were as follows: reaction temperature 150℃, reaction time 5 h, molar ratio of n-butanol to citric acid = 3. 7 : 1, and w(catalyzer) = 1. 2% of total initial materials. Conversion of citric acid amounts to 96%. The catalyst could be isolated from reaction materials by external magnetic field, its recovery amounts to 83. 2%, and could be reused. |
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| Keywords: | magnetic solid superacid catalysis tributyl citrate |
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