Methylacrylate and di-rc-butylamine are used as raw materials. After double bond protection, catalytic aminolysis, catalytic pyrolysis and subsequent vacuum distillation, DBAA product was obtained successfully. On the basis of the N, N-dietylacrylamide (DEAA) ,the effect of reaction temperature, reaction time, ratio of raw materials on reaction result. The results showed that for catalytic aminolysis reaction catalyst dosage was 2.5% ,reaction time was 5 h,reaction temperature was 140℃,the mole ratio of di-n-butylamine and methoxypropionate was 1. 15:1 ,the conversion rate was 96. 5% ,the yield was 91. 9% ; for catalytic pyrolysis reaction time was 4 h,solvent was about 82% ,the yield of DEAA was greater than 77% ,the total yield was greater than 70%.%以二正丁胺和丙烯酸甲酯为主要原料,经双键保护、催化胺解、催化热裂解、减压精馏等过程制得N,N-二丁基丙烯酰胺(DBAA).考察了反应温度、反应时间、原材料配比对反应结果的影响.结果表明,对于催化胺解过程:催化剂用量2.5％,反应时间5h,反应温度140 ℃,二正丁胺与甲氧基丙酸甲酯的摩尔比为1.15∶1,甲氧基丙酸甲酯的转化率为96.5％,产品收率为91.9％；催化裂解过程,反应时间为4h,溶剂用量为82％左右,N,N-二丁基丙烯酰胺的收率≥77％,产品总收率≥70％.
展开▼
