公开(公告)号：US20160068498A1

公开(公告)日：2016-03-10

申请号：US14786122

申请日：2014-04-15

Applicant: HEXION INC.

Inventor： Paul HAESAKKERS ,  Mark KAPELLEN ,  Joachim LIENKE ,  Sandra RENS VAN DER LEE ,  Jimmy Antonius VAN RIJN

IPC: C07D301/32

CPC classification number: C07D301/32 ,  C07D303/08

Abstract: The invention relates to a process for purification of epichlorohydrin containing 1,2-epoxy-5-hexene impurity, by (a) epoxidizing allyl chloride contaminated with 1,5-hexadiene into epichlorohydrin, (b) removing any unreacted allyl chloride, (c) adding a halogen to the crude epichlorohydrin obtained after the removal of unreacted allyl chloride and allowing the halogen to react with 1,2-epoxy-5-hexene and other olefinically unsaturated components, if any, in the crude epichlorohydrin, and (d) rectifying the product of step (c) to obtain epichlorohydrin, wherein the amount of halogen added in step (c) is at a molar ratio of at least 0.5:1 to less than 1:1 calculated on the amount of said 1,2-epoxy-5-hexene and said other olefinically unsaturated components in the crude epichlorohydrin, and allowing the halogen to react until it is fully converted.

Abstract translation: 本发明涉及通过（a）将被1,5-己二烯污染的烯丙基氯环氧化成表氯醇，（b）除去任何未反应的烯丙基氯，（c）的1,2-环氧-5-己烯杂质的表氯醇的纯化方法 在去除未反应的烯丙基氯并使卤素与1,2-环氧-5-己烯和其它烯属不饱和组分（如果有的话）在粗表氯醇中反应得到的粗表氯醇中加入卤素，和（d） 对步骤（c）的产物进行精馏以得到表氯醇，其中在步骤（c）中加入的卤素的量以所述1,2-二氯乙烷的量计算为至少0.5:1至小于1:1的摩尔比， 环氧-5-己烯和所述其它烯属不饱和组分，并允许卤素反应直至完全转化。