| 强酸性阳离子交换树脂催化合成丙二酸二乙酯 |
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| 引用本文： | 武鹄,何节玉.强酸性阳离子交换树脂催化合成丙二酸二乙酯[J].湖南理工学院学报,2005,18(3):59-61. |
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| 作者姓名： | 武鹄 何节玉 |
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| 作者单位： | 湖南理工学院化学化工系 湖南岳阳414000
(武鹄)，湖南理工学院化学化工系 湖南岳阳414000(何节玉) |
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| 基金项目： | 湖南理工学院基金项目(2002C015) |
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| 摘 要： | 首次以强酸性阳离子交换树脂为催化剂,以装有无水硫酸镁的索氏提取器为脱水装置,催化合成了丙二酸二乙酯,该催化剂催化活性高,易分离,不腐蚀设备,无废酸排放,催化剂易再生,是一种环境友好催化剂。考察了影响反应的条件,获得优化试验条件如下:丙二酸0.2mol,无水乙醇0.6mol,催化剂1.5g,无水MgSO48g,反应时间5h,转化率达95.5%。
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| 关 键 词： | 强酸性阳离子交换树脂 索氏提取器 催化酯化 丙二酸二乙酯 |
| 文章编号： | 0672-5298（2005）03-0059-03 |
| 收稿时间： | 2005-05-09 |
| 修稿时间： | 2005年5月9日 |
Catalytic synthesis of diethyl malonate over cation exchange resin |
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| WU Gu, HE Jie-yu.Catalytic synthesis of diethyl malonate over cation exchange resin[J].Journal of Hunan Institute of Science and Technology,2005,18(3):59-61. |
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| Authors: | WU Gu HE Jie-yu |
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| Abstract: | With anhydrous magnesium sulfate packed in Soxhlet extractor as de hydrant,and cation exchange resin as catalyst,diethyl malonate was first synthe sized by esterification of malonic acid with ethyl alcohol.The catalyst had hig h activity,no corrosion to the facilities,reaction product separated easily and no waste acid discharged.It was an environmentlly friendly catalyst.The reacti on conditions of esterification were studied.The optimum condition was obtained as follows: malonic acid 0.2mol,ethyl alcohol 0.6mol,catalyst 1.5g,reaction ti me5h,anhydrous magnesium sulfate 8g.The conversion was 95.5% under the optimum conditions. |
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| Keywords: | Soxhlet extractor cation exchange resin catalytic esterification diethyl malonate |
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