Synthesis of epichlorohydrin from 1,3-dichloropropanol using solid base

作     者：Yangcheng Lu Tianyang Li Rui Wang Guangsheng Luo 

作者机构：State Key Laboratory of Chemical Engineering Department of Chemical EngineeringTsinghua UniversityBeijing 100084China 

基　　金：Supported by the National Natural Science Foundation of China(21176136,21422603) the National Science and Technology Support Program of China(2011BAC06B01) 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2017年第25卷第3期

页      码：301-305页

摘      要：In this work, the synthesis of epichlorohydrin(ECH) from 1,3-dichloropropanol(DCP) by using solid sodium hydroxide(NaOH) is carefully investigated. Inert organic solvent, 1-octanol, is introduced to ensure reaction intensity under control. The reaction performances with respect to apparent kinetics and selectivity are determined to explore optimized reaction conditions and confirm potentials for enhancing productivity in one batch. The dissolution and liquid phase reaction mechanism and instant reaction assumption are proposed and verified through process analysis. A process design towards free additional water is schematically figured out to manipulate solid NaOH, by-product,and unreacted starting materials to realize a nearly closed circuit. This process allows high selectivity over 97% and complete DCP conversion at 323.2 K within a reaction time less than 20 min. Other advantages include near-zero wastewater emission, economically possible NaOH regeneration from NaCl, and robust operating condition window.

主 题 词：环氧氯丙烷 醇合成 固体 反应条件 NaOH 工艺设计 废水排放 表观动力学 

学科分类：0710[理学-生物科学类] 0830[工学-生物工程类] 081702[081702] 081705[081705] 0817[工学-轻工类] 08[工学] 080502[080502] 0805[工学-能源动力学] 0703[理学-化学类] 

核心收录：

D　O　I：10.1016/j.cjche.2016.08.019

馆 藏 号：203226991...