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%.
作者
寇然
金一丰
尹红
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)
出处
《现代化工》
CAS
CSCD
北大核心
2022年第12期255-258,共4页
Modern Chemical Industry
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
1
2-dichlorotertbutane
methylallyl chloride
reactive rectification process
elimination reaction
作者简介
寇然(1992-),男,博士,高级工程师,研究方向为表面活性剂及中间体的合成研究和产业化,2559553600@qq.com;通讯联系人:金一丰(1973-),男,硕士,教授级高级工程师,研究方向为表面活性剂及中间体的合成研究和产业化,jyf-710@163.com。
