作　　者： ; ; ; ;

机构地区： 湖南大学环境科学与工程学院

出　　处： 《精细石油化工进展》 2004年第11期20-22,共3页

摘　　要： 采用充分干燥的丙烯酸钠盐为原料和减压抽滤的后处理方法,对传统丙烯酸缩水甘油酯合成工艺进行改进。探讨了丙烯酸钠纯度、含水量、催化剂及阻聚剂品种、反应条件、减压抽滤时蒸馏压力等因素对丙烯酸缩水甘油酯收率的影响。结果表明,当丙烯酸钠纯度99％以上,含水量小于0.5％,十六烷基三甲基溴化铵为催化剂,对苯二酚为阻聚剂,环氧氯丙烷与丙烯酸钠摩尔比为4.5:1,反应温度100-105℃,反应时间2.5 h,减压蒸馏压力0.097 MPa时,丙烯酸缩水甘油酯收率达92％以上。 Glycidyl acrylate was synthesized using dry sodium acrylate, epoxy chloropropane as raw material, then refined under vacuum condition. The effects of reaction conditions on the yield of glycidyl acrylate were examined. The result showed that the yield of glycidyl acrylate could be over 92% when the purity of sodium acrylate was 99 % , the water content was less than 0.5%, cetyl trimethyl ammonium bromide was used as catalyst, hydroquinone was used as polymerization inhibitor, the molar ratio of epoxy chloride to sodium acrylate was 4 .5:1 at 100 -105 ℃ for reaction time of 2.5 hours with the product extracted under vacuum pressure of 0.097 MPa.

关 键 词： 丙烯酸钠 合成工艺 阻聚剂 收率 甘油酯 缩水 抽滤 改进 干燥 原料

领　　域： [石油与天然气工程] [化学工程]