| 粉煤灰复合固体酸催化合成乳酸正丁酯的研究 |
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| 引用本文： | 古绪鹏,冷玲波. 粉煤灰复合固体酸催化合成乳酸正丁酯的研究[J]. 精细化工中间体, 2006, 36(3): 59-61 |
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| 作者姓名： | 古绪鹏 冷玲波 |
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| 作者单位： | 安徽工业大学,化学与化工学院,安徽,马鞍山,243002 |
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| 基金项目： | 安徽省教育厅自然基金项目(2006kj106B) |
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| 摘 要： | 以乳酸和丁醇为原料,在粉煤灰复合固体酸的催化下,对合成乳酸正丁酯的工艺进行了实验研究,其优惠制备条件为:浸泡硫酸浓度为0.5mol/L,浸泡时间为6h,焙烧温度为550℃,焙烧时间为3h,优化酯化反应条件为:醇酸摩尔比为3∶1,催化剂的用量为乳酸质量的3.0%,反应时间为2h,酯化率可达98.8%。
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| 关 键 词： | 乳酸正丁酯 催化剂 固体酸 粉煤灰 |
| 文章编号： | 1009-9212(2006)03-0059-03 |
| 收稿时间： | 2005-12-02 |
| 修稿时间： | 2005-12-02 |
Synthesis of Butyl Lactate with Fly Ash Composite Solid Acid as Catalyst |
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| GU Xu-peng,LENG Ling-bo. Synthesis of Butyl Lactate with Fly Ash Composite Solid Acid as Catalyst[J]. Fine Chemical Intermediates, 2006, 36(3): 59-61 |
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| Authors: | GU Xu-peng LENG Ling-bo |
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| Abstract: | Butyl lactate was synthesized starting from lactic acid and butanol over a composite solid acid as catalyst.Experimental results indicated that the optimal preparation conditions were obtained as 0.5 mol/L H2SO4,immersing time 6 h and calcination temperature 550℃.Under the optimal conditions such as butyl alcohol-lactic acid molar ratio 3 ∶ 1,percentage amount of catalyst 3.0% and reaction time 2 h,the esterification rate reached 98.8%. |
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| Keywords: | n-butyl lactate catalyst solid acid fly ash |
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