| 稀土固体超强酸SO_4~(2-)/TiO_2/La~(3+)催化合成马来酸二丁酯 |
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| 引用本文： | 赵汝琪.稀土固体超强酸SO_4~(2-)/TiO_2/La~(3+)催化合成马来酸二丁酯[J].精细化工,2000,17(3). |
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| 作者姓名： | 赵汝琪 |
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| 作者单位： | 河北师范大学,化学系,河北,石家庄,050016 |
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| 基金项目： | 河北省自然科学基金!( 2 95 10 8) |
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| 摘 要： | 以固体超强酸SO4 2 -/TiO2 /La3 + 为催化剂 ,马来酸和正丁醇为原料合成马来酸二丁酯 ,考察了影响反应的因素。结果表明 :n (醇 )∶n (酸 ) =4 0∶1 ;催化剂用量为 1 0g (马来酸为 0 1mol的情况下 ) ;带水剂甲苯为 1 5mL ;反应时间为 3 0h是最适宜的反应条件 ,酯化率达 97 4 %。
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| 关 键 词： | 马来酸二丁酯 稀土固体超强酸 催化 |
The Catalytic Synthesis of Dibutyl Maleate by SO42-/TiO2/La3+ Rare-earth Solid Superacid |
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| ZHAO Ru-qi.The Catalytic Synthesis of Dibutyl Maleate by SO42-/TiO2/La3+ Rare-earth Solid Superacid[J].Fine Chemicals,2000,17(3). |
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| Authors: | ZHAO Ru-qi |
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| Abstract: | The synthesis of dibutyl maleate with n butanol and maleic acid as reactants and rare earth solid superacid SO 4 2- /TiO 2/La 3+ as catalyst was studied.The influence factors of reaction were investigated.The results showed that the appropriate conditions were as follows:mass of catalyst 1 0 g (based on 0.1 mole maleic acid),n(n butanol)∶n(maleic acid)=4 0∶1,reaction time 3 0 h,water carrying reagent (toluene) 15 mL.The yield of dibutyl maleate was about 97 4%. |
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| Keywords: | dibutyl maleate rare earth solid superacid catalysis |
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