| 固体超强酸催化合成乙醇酸甲酯 |
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| 引用本文： | 陈栋梁,李庆,储伟,于作龙. 固体超强酸催化合成乙醇酸甲酯[J]. 天然气化工, 2000, 25(5): 5-7 |
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| 作者姓名： | 陈栋梁 李庆 储伟 于作龙 |
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| 作者单位： | 中国科学院成都有机化学研究所,四川成都,610041 |
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| 摘 要： | 对SO42 -/ZrO2 催化剂催化乙醇酸与甲醇合成乙醇酸甲酯的反应条件进行了优化 ,确定了在催化剂与乙醇酸为 1 g/mol下 ,反应时间为 6h ,醇酸摩比为 4:1的最佳反应条件 ,并且乙醇酸甲酯的收率达到 85 7%。过高的醇酸摩比和过长的反应时间不利于乙醇酸甲酯的合成。经过 8次的寿命实验表明 ,SO42 -/ZrO2 仍具有较好的催化活性。
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| 关 键 词： | 固体超强酸 乙醇酸甲酯 催化合成 |
| 修稿时间： | 2000-01-04 |
Synthesis of methyl glycolate with solid superacid as catalyst |
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| CHEN Dong-liang,LI Qing,CHU Wei,YU Zuo-long. Synthesis of methyl glycolate with solid superacid as catalyst[J]. Natural Gas Chemical Industry, 2000, 25(5): 5-7 |
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| Authors: | CHEN Dong-liang LI Qing CHU Wei YU Zuo-long |
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| Abstract: | Reaction conditions of synthesis of methyl glycolate with hydroxyacetic acid and methanol catlyzed by solid superacid catalyst(SO 4 2- /ZrO 2)was studied.Optimum esterification condition was obtained as follows:under the ratio(1g/mol)of SO 4 2- /ZrO 2 to hydroxyacetic acid,reaction time was 6h,the molar ratio of methanol to hydroxyacetic acid was 4∶1,and the yield of methyl glycolate could reach 85 7%.It was very disadvantageous to synthesis of methyl glycolate under the conditions of very high molar ratio of methanol to hydroxyacetic acid and very long reaction time.The experimental showed that SO 4 2- /ZrO 2 still had fairly good catalytic activity for methyl glycolate synthesis by eight times life test. |
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| Keywords: | solid superacid catalyst methyl glycolate catalytic synthesis |
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