| 固体超强酸SO_4~(2-)/TiO_2-WO_3催化合成乙酸正戊酯 |
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| 引用本文： | 董镜华,杨水金.固体超强酸SO_4~(2-)/TiO_2-WO_3催化合成乙酸正戊酯[J].化学推进剂与高分子材料,2003,19(5):18-19. |
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| 作者姓名： | 董镜华 杨水金 |
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| 作者单位： | 湖北师范学院化学与环境工程系 黄石435002
(董镜华)，湖北师范学院化学与环境工程系 黄石435002(杨水金) |
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| 基金项目： | 湖北省教育厅重点科研基金 (No .2 0 0 2A0 0 0 0 8)资助项目 |
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| 摘 要： | 以新型固体超强酸SO2 -4/TiO2 WO3 为催化剂 ,用乙酸和正戊醇反应合成乙酸正戊酯。探讨了醇酸物质的量比、催化剂用量、反应时间等因素对酯收率的影响。实验表明 :固体超强酸SO2 -4/TiO2 WO3 具有较好的催化活性 ,醇酸物质的量比为 1.35∶1,催化剂用量为反应物料总质量的 1.0 % ,反应时间为 2 .0h ,反应温度 10 4～ 116℃ ,收率达 6 5 .0 %
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| 关 键 词： | 有机化学 SO2-4/TiO2-WO3 催化剂 制备 乙酸正戊酯 酯化反应 |
Catalytic Synthesis of n-Amyl Acetate with Solid Superacid SO_4~(2-)/TiO_2-WO_3 |
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| Dong Jinghua,Yang Shuijin.Catalytic Synthesis of n-Amyl Acetate with Solid Superacid SO_4~(2-)/TiO_2-WO_3[J].Chemical Propellants & Polymeric Materials,2003,19(5):18-19. |
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| Authors: | Dong Jinghua Yang Shuijin |
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| Abstract: | The n-amyl acetate was synthesized from the reaction of acetic acid and n-amyl alcohol with a new type of solid superacid SO 2- 4/TiO 2-WO 3 as catalyst.The influence of the molar ratio of n-amyl alcohol and acetic acid , the quantity of the catalyst , the reaction time etc on the ester yield was discussed .The experiments showed that the solid superacid SO 2- 4/TiO 2-WO 3 has a better catalytic activity, the molar ratio of n-amyl alcohol and acetic acid is 1.35∶1,the quantity of catalyst is equal to 1.0% by mass of the total feed stocks , the reaction temperature is 104～116?℃, the reaction time is 2.0?h , and the yield reaches 65.0%. |
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| Keywords: | organic chemistry SO 2- 4/TiO 2-WO 3 catalyst preparation n-amyl acetate esterification |
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