| 稀土固体超强酸Gd3+-SO2-4/ZrO2催化合成乙酸正丁醋 |
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| 引用本文： | 胡春燕,李双全.稀土固体超强酸Gd3+-SO2-4/ZrO2催化合成乙酸正丁醋[J].湿法冶金,2011(4):344-347. |
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| 作者姓名： | 胡春燕 李双全 |
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| 作者单位： | 江西农业大学理学院;华东理工大学研究生院; |
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| 摘 要： | 采用乙酸、正丁醇为原料,以固体超强酸Gd3+-SO24-/ZrO2作为催化剂,催化合成乙酸正丁酯。用固体超强酸Gd3+-SO42-/ZrO2和SO24-/ZrO2进行催化活性对比试验,考察浸渍硫酸浓度、浸渍时间、焙烧温度对催化剂活性的影响以及原料酸醇比、反应时间、催化剂用量对酯化率的影响,从而确定固体超强酸的最佳制备条件。试验结果表明:在反应温度105～110℃,催化剂用量1.5g,n(正丁醇)∶n(乙酸)=2.5∶1,反应时间2.5h条件下,酯化率可达98.86%;催化剂重复使用效果明显;加Gd3+的固体超强酸的催化活性明显增强。
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| 关 键 词： | 固体超强酸 乙酸正丁醋 醋化 催化剂 |
Synthesis of n-Butyl Acetate by Rare Earth Solid Superacid Gd~(3+)-SO_4~(2-)/ZrO_2 Catalyst |
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| HU Chun-yan,LI Shuang-quan.Synthesis of n-Butyl Acetate by Rare Earth Solid Superacid Gd~(3+)-SO_4~(2-)/ZrO_2 Catalyst[J].Hydrometallurgy of China,2011(4):344-347. |
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| Authors: | HU Chun-yan LI Shuang-quan |
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| Affiliation: | HU Chun-yan1,LI Shuang-quan2(1.Department of Science,Jiangxi Agricultural University,Nanchang 330045,China,2.Graduate School,East China University of Science and Technology,Shanghai 200237 China) |
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| Abstract: | The n-butyl acetate was obtained by the reaction of acetic acid with n-butyl alcohol,and using the rare earth solid superacid Gd3+-SO2-4/ZrO2 as catalyst.The esterification reaction was preformed to confirm the optimal conditions of preparation.Compared experiments were made using the rare earth solid superacid Gd3+-SO2-4/ZrO2 catalyst,and investigated the influences of concentrate of H2SO4,dipped time,roasted temperature on the catalytic activity,also investigated the inluences of ratio of n-butyl alcohol ... |
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| Keywords: | rare earth solid superacid n-butyl acetate esterification catalyst |
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