丁二酸二甲酯加氢制备γ-丁内酯  

CATALYTIC HYDROGENATION OF DIMETHYL SUCCINATE TO γ-BUTYROLACTONE

作　　者：刘建武[1] 张跃[1] 严生虎[1] 刘建辉[1] 沈介发[1] 

机构地区：[1]江苏工业学院精细化工研究所,江苏常州213164

出　　处：《精细石油化工》2010年第2期12-15,共4页Speciality Petrochemicals

摘　　要：实验以丁二酸二甲酯为原料、甲醇为溶剂,在复合铜基催化剂Cu-ZnO-ZrO_2/Al_2O_3作用下,催化加氢制备γ-丁内酯。考察了反应温度、压力、氢酯摩尔比、液时空速和溶剂质量比等因素对加氢反应的影响。结果表明:在反应温度为200℃、压力为3.0 MPa、n(H_2):n(C_6H_(10)O_4)=150、丁二酸二甲酯液时空速为0.5 h、溶剂质量比为4:1的条件下,丁二酸二甲酯的转化率达到100%,γ-丁内酯的选择性达90%。In the micro fixed-bed reactor, preparation of γ-butyrolactone was carried out by catalytic hydrogenation of dimethyl succinate using composite copper-based catalyst Cu-ZnO- ZrO2/Al2O3. Effects of reaction temperature, pressure, molar ratio of hydrogen to dimethyl succinate and liquid hourly space velocity on the hydrogenation reactions were investigated. The optimal conditions were found as follows： reaction temperature 200 ℃, reaction pressure 3.0 MPa, molar ratio of hydrogen to dimethyl succinate of 150 ： 1, liquid hourly space velocity of dimethyl succinate 0.5 h ^-1 , mass ratio of solvent to solute of 4 ： 1. Under these conditions, the conversion of dimethyl succinate reached 100%, molar selectivity of γ-butyrolactone reached 90%.

关 键 词：铜基催化剂催化加氢 Γ-丁内酯 

分 类 号：TQ426.94[化学工程] TQ225.249