| N-甲基吡咯烷酮硫酸氢盐催化合成己二酸二异辛酯 |
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| 引用本文： | 邓斌,张晓军,徐安武.N-甲基吡咯烷酮硫酸氢盐催化合成己二酸二异辛酯[J].化工文摘,2009(2). |
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| 作者姓名： | 邓斌 张晓军 徐安武 |
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| 作者单位： | 湘南学院化学与生命科学系;中国科技大学合肥微尺度物质科学国家实验室; |
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| 基金项目： | 湖南省自然科学基金资助项目(07JJ3017);;湖南省教育厅优秀青年科研基金项目(06B089) |
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| 摘 要： | 以新型离子液体N-甲基吡咯烷酮硫酸氢盐(Hnmp]HSO4)为催化剂,己二酸和异辛醇为原料,环己烷为带水剂,对己二酸二异辛酯的酯化反应进行了研究,重点考察了醇酸摩尔比、催化剂用量、带水剂加入量、反应时间等因素对己二酸二异辛酯酯化率的影响。实验结果表明,N-甲基吡咯烷酮硫酸氢盐对合成己二酸二异辛酯有着良好的催化活性,当己二酸用量为0.1mol时,醇酸摩尔比为2.6:1,催化剂用量为己二酸物质的量的1.2%,带水剂环己烷为10mL,回流温度下反应时间120min,在此条件下,反应的酯化率可达99%以上,且催化剂重复使用6次仍保持较高活性。
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| 关 键 词： | 己二酸二异辛酯 离子液体 N-甲基吡咯烷酮硫酸氢盐 催化合成 |
Catalytic Synthesis of Diisooctyl Adipate by N-methyl Pyrrolidone Hydrosulfate |
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| Authors: | Deng Bin Zhang Xiaojun Xu Anwu |
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| Affiliation: | 1 Department of Chemistry and Life Science Xiangnan University Chenzhou 423000;2 Hefei National Labora-tory for Physical Sciences at Microscale University of Science and Technology of China Hefei 230026 |
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| Abstract: | The esterification of 2-ethylhexanol and adipic acid with N-methyl pyrrolidone hydrosulfate as catalyst and cyclohexane as water-carring agent was studied. The effects of different factors such as molar ratio of alcohol to acid, the dosage of catalyst, adding amount of water-carrying agent and reaction time were investigated. The results showed that N-methyl pyrrolidone hydrosulfate exhibited excellent catalytic activity for diisooctyl adipate synthesis. When the amount of adipic acid was 0.1mol, mole ratio... |
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| Keywords: | diisooctyl adipate ionic liquid N-methyl pyrrolidone hydrosulfate catalytic synthesis |
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