催化水合法合成乙二醇  

Synthesis of Ethylene Glycol by Catalytic Hydration

作　　者：华强[1] 刘定华[1] 马正飞[1] 刘晓勤[1] 姚虎卿[1] 

机构地区：[1]南京工业大学化工学院,江苏南京210009

出　　处：《石油化工》2003年第4期317-320,共4页Petrochemical Technology

摘　　要：针对目前直接水合法生产乙二醇设备大、能耗高的状况,采用催化水合法合成乙二醇,并探讨了催化剂用量、水/环氧乙烷质量比、反应温度、压力等因素对反应的影响,得到水/环氧乙烷质量比为4/1时的较佳反应条件范围:催化剂质量分数不小于6%;反应温度大于45℃;反应压力大于0 5MPa。在此工艺条件范围内,环氧乙烷的转化率99 8%以上,乙二醇的选择性99%以上。?Synthesis of EG by catalytic hydration was studied,with the aim of substituting it for direct hydration.When the mass ratio of water and ethylene oxide was 4/1,then,under the optimum conditions of mass fraction of catalyst not less than 6%,reaction temperature higher than 45 ℃,and pressure higher than 05 MPa,the conversion of ethylene oxide reached 998%,and selectivity of ethylene glycol 99%.

关 键 词：催化水合法 合成 乙二醇 环氧乙烷 水 

分 类 号：TQ223.162[化学工程—有机化工]