第 45 卷第 1 期 | | Vol. 45 No. 1 | 2015 年 2 月 | Feb 2015 |
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所属栏目:功能材料
4,4′-二氨基二苯甲烷合成的正交试验法研究 |
赵建兵1,王世兵2*
(1. 黑龙江林业职业技术学院 材料工程系,黑龙江 牡丹江 157011;2. 黄淮学院 化学化工系,河南 驻马店 463000) |
摘 要:以苯胺、甲醛为原料在盐酸催化下合成4,4′-二氨基二苯甲烷。利用正交实验法考察了反应物投料比、转位温度、转位时间对4,4′-二氨基二苯甲烷收率的影响。确定了优化条件为:n(苯胺)∶n(甲醛)=4∶1,转位温度85℃,转位时间30 min。优化条件下所得目标产物收率为90.42%。 |
关键词:苯胺;甲醛;4,4′-二氨基二苯甲烷;正交实验设计法 |
中图分类号:TQ246 文献标识码:A 文章编号:1009-9212(2015)01-0065-04 |
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Study on the Synthesis of MDA by Orthogonal Test |
ZHAO Jian-bing1, WANG Shi-bing2
(1. Department of Materials Engineering, Heilongjiang Forestry Vocation-Technical College, Mudanjiang 157011, China; 2. Department of Chemistry and Chemical Engineering, Huanghuai University, Zhumadian 463000, China) |
Abstract:4,4′-Methylenedianiline was synthesized from the reaction of aniline with formaldehyde using hydrochloric acid as catalyst, and was characterized using infrared spectroscopy and melting-point instrument. The optimal reactants ratio, transformation temperature and reaction time were investigated using orthogonal test. the experimental results showed that the percent conversion of this reaction can be up to 90.4% at an aniline/formaldehyde molar ratio of 4:1, transposition temperature of 85℃ and reaction time of 30 min. |
Key words:aniline; formaldehyde; 4,4′-ethylenedianiline; orthogonal experimental design method |
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作者简介:赵建兵(1977-),男,山西运城人,讲师,硕士,从事精细化工及林产化学研究(Email:zhaojianbing300@163.com)。
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联 系 人:王世兵,讲师,博士,从事高分子化学研究方向(Email:18781531@qq.com)。
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收稿日期:2014-11-22
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