| 一步法烷基化制备均三甲基苯胺工艺研究 |
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| 引用本文： | 陈虎魁,金徽,陈立宇,张秀成.一步法烷基化制备均三甲基苯胺工艺研究[J].宝鸡文理学院学报(自然科学版),2011,31(2):36-39. |
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| 作者姓名： | 陈虎魁 金徽 陈立宇 张秀成 |
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| 作者单位： | 1. 宝鸡文理学院 化学化工系，陕西宝鸡,721013
2. 西北大学化工学院,陕西西安,710069 |
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| 基金项目： | 宝鸡文理学院科研计划项目资助(ZK1015) |
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| 摘 要： | 目的考察反应温度、压力、进料组成、液空时速对邻甲苯胺烷基化制备均三甲基苯胺反应的影响,并推测反应机理。方法以邻甲苯胺和甲醇为原料,在催化剂(V2O5或者V2O5-Cr2O3复合体)作用下通过烷基化反应,一步生成均三甲基苯胺。结果与结论以V2O5-Cr2O3复合体为催化剂活性成分,在350℃左右,邻甲苯胺∶甲醇=1∶3.0～1∶3.5(mol/mol),液空时速为0.3～0.4 h-1时,均三甲基苯胺有较高的收率(>31%)和选择性(>34%),并对其反应机理进行了分析。
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| 关 键 词： | 均三甲基苯胺 邻甲苯胺 甲醇 烷基化 |
Process research on the synthesis of 2,4,6-trimethylaniline by alkylation of o-toluidine with one-step method |
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| CHEN Hu-kui,JIN Hui,CHEN Li-yu,ZHANG Xiu-cheng.Process research on the synthesis of 2,4,6-trimethylaniline by alkylation of o-toluidine with one-step method[J].Journal of Baoji College of Arts and Science(Natural Science Edition),2011,31(2):36-39. |
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| Authors: | CHEN Hu-kui JIN Hui CHEN Li-yu ZHANG Xiu-cheng |
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| Institution: | CHEN Hu-kui1,JIN Hui2,CHEN Li-yu2,ZHANG Xiu-cheng2(1.Dept.Chem.& Chem.Eng.,Baoji University of Arts and Science,Baoji 721007,Shaanxi,China,2.Department of Chemical Engineering,Northwest University,Xi'an 710069,China) |
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| Abstract: | Aim To investigate the effect of temperature,pressure,ratio of raw materials and space velocity on the synthesis of 2,4,6-trimethylaniline by alkylation reaction of o-toluidine with methanol and study the reaction mechanism.Methods With o-toluidine and methanol as raw materials,2,4,6-trimethylaniline was synthesized by alkylation in the presence of catalyst V2O5 or V2O5-Cr2O3 complexes as active components.Results and Conclusion With V2O5-Cr2O3 complexes as active components,2,4,6-trimethylaniline had a hig... |
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| Keywords: | 2 4 6-trimethylaniline o-toluidine methanol alkylation |
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