| 醋酸丁酯一步法乙氧基化合成聚乙二醇丁醚醋酸酯 |
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| 引用本文： | 张金昌,安维中,孟岩,赵宏斌,周立明,朱建民. 醋酸丁酯一步法乙氧基化合成聚乙二醇丁醚醋酸酯[J]. 日用化学品科学, 2014, 0(9): 59-64 |
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| 作者姓名： | 张金昌 安维中 孟岩 赵宏斌 周立明 朱建民 |
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| 作者单位： | 辽宁奥克化学股份有限公司;中国海洋大学化学化工学院; |
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| 基金项目： | 2013年江苏省“博士集聚计划”创新人才资助 |
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| 摘 要： | 通过共沉淀法合成出水滑石类的LDH复合氧化物材料,经过三乙胺改性后,发现其在XRD、FT-IR、NH_3-TPD、CO_2-TPD及TEM的表征中与改性前相比有显著差别。研究表明,改性后的催化剂有弱酸和弱碱双活性中心。和改性前相比,使用三乙胺改性后的催化剂在醋酸丁酯的乙氧基化反应中,反应活性明显提高,1EO产物含量显著增大,产品分布变窄。
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| 关 键 词： | 一步法乙氧基化 水滑石 三乙胺改性 |
Synthesis of poly ethylene glycol butyl ether acetate from n-butyl acetate by one-step ethoxylation |
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| Affiliation: | ZHANG Jin-chang, AN Wei-zhong, MENG Yan, ZHAO Hong-bin, ZHOU Li-ming, ZHU Jian-min (1.Liaoning Oxiranchem. Inc., Liaoyang, Liaoning 111003, China; 2. Ocean University of China, College of Chemistry and Chemical Engineering, Qingdao, Shandong 266100, China) |
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| Abstract: | The layered double hydroxide （LDH） material similar to hydrotalcite was synthesized by co-precipitation and modified by triethylamine. The characterization test by different instruments indicated thai obvious difference between the modified and unmodified products was found in test results of XRD, FT-IR, NH3-TPD, CO2-TPD and TEM. Both weak acid center and weak alkali center were identified in the triethylamine modified products. The reaction activity of ethoxylation of butyl acetate catalyzed by triethylamine modified products was raised, the content of product with lEO addition improved and EO distribution narrower compared to that of reaction catalyzed by unmodified hydrotalcite. |
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| Keywords: | one-step ethoxylation hydrotaleite modified by triethylamine |
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