Kinetic studies for the esterification of acetic acid with epichlorohydrin over an anion exchange resin catalyst
Kinetic studies for the esterification of acetic acid with epichlorohydrin over an anion exchange resin catalyst
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DOI：
10.2478/s11532-008-0046-z
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发表时间：
2008-08
影响因子：
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通讯作者：
E. Muresan;S. Oprea;V. Hulea;Theodor Măluṭan;M. Vâţă
中科院分区：
文献类型：
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作者：
E. Muresan;S. Oprea;V. Hulea;Theodor Măluṭan;M. Vâţă
研究了Purolite A-520 E强碱性阴离子交换树脂催化乙酸与环氧氯丙烷酯化反应的动力学。考察了搅拌速度、粒径、反应温度、催化剂用量、反应物摩尔比等因素对反应的影响。结果发现，整体反应速率是内在动力学控制。测定了反应对催化剂、乙酸和环氧氯丙烷的偏级数。提出了反应机理。根据色谱数据，并考虑到反应的部分级数，一个更详细的动力学模型建议。
The kinetics of the esterification reaction between acetic acid and epichlorohydrin catalysed by Purolite A-520E strong basic anion exchange resin was studied. The effects of certain parameters such as stirring speed, particle diameter, temperature, catalyst amount and molar ratio between reactants were experimentally determined. It was found that the overall reaction rate is intrinsically kinetically controlled. The partial orders of reaction with respect to catalyst, acetic acid and epichlorohydrin were determined. A reaction mechanism is proposed. Based on chromatographic data and taking into account the partial orders of reaction, a more detailed kinetic model is suggested.