| 稀土固体超强酸催化合成乙酸苄酯的研究 |
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| 引用本文： | 张小曼. 稀土固体超强酸催化合成乙酸苄酯的研究[J]. 昆明理工大学学报(自然科学版), 2003, 28(5): 174-176 |
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| 作者姓名： | 张小曼 |
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| 作者单位： | 昆明师范高等专科学校,化学系,云南,昆明,650031 |
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| 摘 要： | 采用稀土元素La^3 对固体超强酸SO4^2-／TiO2的改性，制备出稀土固体超强酸催化剂SO4^2-／TiO2／La^3 催化荆，应用于合成乙酸苄酯的反应中，其最佳反应条件为：醇酸摩尔比1．8(乙酸的用量为0．2mol)，催化剂用量为1．2g，反应时间为2．0h，乙酸苄酯的酯化率达98．8％。
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| 关 键 词： | 稀土 固体超强酸 催化合成 乙酸苄酯 酯化率 催化剂 反应时间 催化机理 |
| 文章编号： | 1007-855X(2003)05-0174-03 |
| 修稿时间： | 2003-05-21 |
Study on the Catalytic Synthesis of Rare Earth Solid Superacids into Benzyl Acetate |
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| ZHANG Xiao man. Study on the Catalytic Synthesis of Rare Earth Solid Superacids into Benzyl Acetate[J]. Journal of Kunming University of Science and Technology(Natural Science Edition), 2003, 28(5): 174-176 |
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| Authors: | ZHANG Xiao man |
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| Abstract: | The catalytic agent, rare earth solid superacids SO 2- 4/TiO 2/La 3+ , is produced by chemically modifying solid superacids with lanthanum, which is used in the synthesis of Benzyl Acetate. The optimized reaction conditions are: while molar ratio of benzyl alcohol to acetic acid is 1.8 (when acetic acid is 0.2?mol ), the amount of rare earth solid superacids is 1.2?g , and the reacting time is 2?h .The esterification rate is about 98 8%. |
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| Keywords: | rare earth solid superacids catalyst activity synthesis Benzyl Acetate |
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