| 凹凸棒黏土固载AlCl3的制备、表征及其催化水杨酸乙酰化活性 |
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| 引用本文： | 吴洁,蒋金龙,薛银飞. 凹凸棒黏土固载AlCl3的制备、表征及其催化水杨酸乙酰化活性[J]. 应用化学, 2011, 28(7): 791-797. DOI: 10.3724/SP.J.1095.2011.00545 |
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| 作者姓名： | 吴洁 蒋金龙 薛银飞 |
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| 作者单位： | (1.江苏省凹土资源利用重点实验室,淮阴工学院生命科学与化学工程学院 淮安 223003；2.淮安市科技局 淮安) |
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| 基金项目： | 江苏省科技厅工业支撑计划资助项目 |
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| 摘 要： | 以凹凸棒黏土（ATP）为载体，采用回流吸附法制备了AlCl3负载型固体酸催化剂AlCl3/ATP，并将其用于催化阿司匹林合成反应。 利用红外光谱、X射线粉末衍射、比表面（BET）、能谱(EDS) 和Hammett指示剂等测试技术对催化剂结构、组成和酸强度进行了表征。 以催化合成阿司匹林收率为考察指标，对影响其催化性能的凹土酸处理浓度、热活化温度、催化剂用量和AlCl3负载量进行优化，并比较了载体和负载前后催化剂的催化性能。 结果表明， ATP经10 mol/L盐酸室温酸化12 h，300 ℃热活化2 h后对AlCl3的负载量达1.18 mmol/g，当AlCl3/ATP用量为水杨酸质量的5%时，其催化阿司匹林合成反应收率达92.5%，高于未负载的AlCl3催化剂及载体本身，且该催化剂重复使用多次仍可保持相当的活性。
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| 关 键 词： | 凹凸棒黏土 负载 AlCl3 阿司匹林 催化活性 |
| 收稿时间： | 2010-09-15 |
Preparation and Characterization of Attapulgite Supported AlCl3 Catalyst and Its Catalytic Properties |
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| WU Jie,JIANG Jinlong,XUE Yinfei. Preparation and Characterization of Attapulgite Supported AlCl3 Catalyst and Its Catalytic Properties[J]. Chinese Journal of Applied Chemistry, 2011, 28(7): 791-797. DOI: 10.3724/SP.J.1095.2011.00545 |
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| Authors: | WU Jie JIANG Jinlong XUE Yinfei |
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| Affiliation: | (1.Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province,;Department of Life Science and Chemical Engineering,Huaiyin Institute of Technology,Huaian 223003;2.Huaian Science and Technology Bureau,Huaian) |
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| Abstract: | Immobilized AlCl3 catalyst(AlCl3/ATP) was prepared through solvent refluxing and adsorption method with attapulgite as the support and then used in the synthesis of aspirin.The catalyst was characterized by Fourier transform infrared spectroscopy(FT-IR),X-ray diffraction(XRD),specific surface area(BET),X-ray energy dispersive spectrometry(EDS) and Hammett indicators.Factors influencing the catalytic properties such as concentration of hydrochloric acid,heat-treated temperature,AlCl3 loading and amount of ca... |
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| Keywords: | attapulgite loading AlCl3 aspirin catalytic properties |
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