| 新型固载离子液体在碳酸丙烯酯水解反应中的应用 |
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| 引用本文： | 唐斌艳,郭建平,陈林,胡强,毛丽秋. 新型固载离子液体在碳酸丙烯酯水解反应中的应用[J]. 化工进展, 2011, 30(12): 2642 |
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| 作者姓名： | 唐斌艳 郭建平 陈林 胡强 毛丽秋 |
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| 作者单位： | 湖南师范大学化学化工学院，湖南 长沙 410081 |
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| 基金项目： | 湖南省科技计划项目(2006JT2009,2009FJ3052) |
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| 摘 要： | 以L-丙氨酸为原料采用溶胶-凝胶法制备了以SiO2为载体的固载化离子液体催化剂（IL-Ala/SiO2）。用红外光谱（FTIR）、热重（TG）、13C NMR、1H NMR、XRD和TEM等测试技术进行了表征,考察了催化剂在碳酸丙烯酯（PC）水解反应中的催化性能。结果表明,该催化剂在常压下能有效催化碳酸丙烯酯水解生成1,2-丙二醇（PG）。在催化剂含量为9%（质量分数）、温度140℃、反应时间3.5 h的条件下,PC的转化率大于99%,PG的选择性大于99%。经简单分离后催化剂可重复使用5次而活性变化不大。
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| 关 键 词： | L-丙氨酸 离子液体 固载催化剂 碳酸丙烯酯 水解 1,2-丙二醇 |
Application of novel immobilized ionic liquid in the hydrolysis of propylene carbonate |
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| TANG Binyan,GUO Jianping,CHEN Lin,HU Qiang,MAO Liqiu. Application of novel immobilized ionic liquid in the hydrolysis of propylene carbonate[J]. Chemical Industry and Engineering Progress, 2011, 30(12): 2642 |
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| Authors: | TANG Binyan GUO Jianping CHEN Lin HU Qiang MAO Liqiu |
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| Affiliation: | College of Chemistry and Chemical Engineering，Hunan Normal University，Changsha 410081，Hunan，China |
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| Abstract: | Immobilized ionic liquid catalyst(IL-Ala/SiO2)was prepared by sol-gel method with L-alanine as raw material and SiO2 as a supporter.This catalyst was characterized by FTIR,TG,13C NMR,1H NMR,XRD and TEM.Catalytic properties were studied in propylene carbonate(PC) hydrolysis.The results show that immobilized ionic liquid catalyst can efficiently catalyze propylene carbonate hydrolysis to produce 1,2-propylene glycol(PG).Reaction occurred under normal pressure,which could avoid a high pressure condition.The co... |
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| Keywords: | L-alanine ionic liquid immobilized catalyst propylene carbonate hydrolysis propylene glycol |
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