甘油法连续化生产二氯丙醇的工艺研究  

Study on the Continuous Technology for Production of Dichloropropanol by Glycerol

作　　者：王良广 唐计光 尹超 徐伟伟 郜婷婷 WANG Liang-guang;TANG Ji-guang;YIN Chao;XU Wei-wei;GAO Ting-ting(Graphene polymer composites R&D Center,Shandong Lutai Holding Group Co.,Ltd.Jining 272000,China)

机构地区：[1]山东鲁泰控股集团有限公司石墨烯高分子复合材料研发中心,山东济宁272000

出　　处：《山东工业技术》2023年第3期92-96,共5页Journal of Shandong Industrial Technology

摘　　要：针对当前甘油制备二氯丙醇存在的催化剂活性低、生产成本高、能耗高、选择性差等问题,本研究开发了一种高效、高选择性的新型甘油氯化催化剂以及甘油连续化制备二氯丙醇的工艺技术。通过优化工艺参数,确定最优的甘油氯化温度为120℃~140℃、压力为常压、甘油和氯化氢摩尔比为1:3、盐酸水的加入量为2 L/kg(以甘油为基准)。对于70%~99%含量的甘油,均可作为制备二氯丙醇的原料,二氯丙醇的生成速率最高为0.537 kg/(kg·h),1,3-二氯丙醇的选择性最高为97.2%。For the problems including low catalyst activity,high cost,high energy consumption and poor selectivity in the preparation of dichloropropanol from glycerol,a new type of glycerol chlorination catalyst with high efficiency and high selectivity was developed,and the continuous preparation of dichloropropanol from glycerol was studied.Glycerin chlorination temperature was 120℃-140℃,pressure was normal pressure,the optimal molar ratio of glycerol and hydrogen chloride was 1:3,and the addition of hydrochloric acid water was 2 L/kg based on glycerol by optimizing the process parameters.It can be used as raw material to prepare dichloropropanol for the content of 70%-99%glycerol.The highest production rate of dichloropropanol is 0.537 kg/(kg·h),and the highest selectivity of 1,3-dichloropropanol is 97.2%.

关 键 词：甘油 二氯丙醇 氯化 连续化 工艺技术 

分 类 号：TQ223.3[化学工程—有机化工]