1,2-二氯叔丁烷制备甲基烯丙基氯的工艺研究  

Process for preparation of methylallyl chloride from 1,2-dichlorotertbutane

作　　者：寇然 金一丰 尹红[4] 王胜利 董楠 KOU Ran;JIN Yi-feng;YIN Hong;WANG Sheng-li;DONG Nan(Zhejiang Lvkean Chemical Co.,Ltd.,Shaoxing 312369,China;Zhejiang Huangma Technology Co.,Ltd.,Shaoxing 312363,China;Shaoxing Key Laboratory of New Materials for Special Surfactants,Shaoxing 312369,China;College of Chemical and Biological Engineering,Zhejiang University,Hangzhou 310014,China;Zhejiang Huangma Shangyi New Material Co.,Ltd.,Shaoxing 312369,China)

机构地区：[1]浙江绿科安化学有限公司,浙江绍兴312369 [2]浙江皇马科技股份有限公司,浙江绍兴312363 [3]绍兴市特种表面活性剂新材料重点实验室,浙江绍兴312369 [4]浙江大学化学工程与生物工程学院,浙江杭州310014 [5]浙江皇马尚宜新材料有限公司,浙江绍兴312369

出　　处：《现代化工》2022年第12期255-258,共4页Modern Chemical Industry

摘　　要：异丁烯氯化法是制备重要有机中间体甲基烯丙基氯的主要方法,有效利用该方法的副产物1,2-二氯叔丁烷可以进一步提升该方法的总收率。设计了一种组合式精馏塔进行反应精馏工艺探索,主要考察了进料氢氧化钠浓度、氢氧化钠与1,2-二氯叔丁烷进料比例、进料速率、进料温度、回流比对1,2-二氯叔丁烷消除反应制备甲基烯丙基氯的影响,得到了较佳制备工艺,甲基烯丙基氯的收率大于99.0%。Isobutene chlorination is the main method to prepare important organic intermediate methylallyl chloride.Total yield of this method can be further improved by effectively using the by-product 1,2-dichlorotert butane.A combined distillation column is designed to explore the reactive rectification process, and investigate the effects of the concentration of sodium hydroxide, the ratio of sodium hydroxide to 1,2-dichlorotertbutane, the feed rate, the feed temperature and the reflux ratio on the elimination reaction of 1,2-dichlorotertbutane for the preparation of methylallyl chloride.A group of better preparation conditions are obtained, under which the yield of methylallyl chloride exceeds 99.0%.

关 键 词：1 2-二氯叔丁烷 甲基烯丙基氯 反应精馏工艺 消除反应 

分 类 号：TQ209[化学工程—有机化工]