甲酯法合成N,N-二甲基-N'-月桂酰基-1,3-丙二胺的工艺研究  

Study on Methyl Ester Route Process of N,N-Dimethyl-N’-Lauryl-1,3-propanediamine

作　　者：李庆和 苏永胜 LI Qinghe;SU Yongsheng(Wilmar Surfactant Materials(Lianyungang)Co.,LTD.,Lian Yun Gang,Jiang Su,222066;Jiangsu(Wilmar)Surfactant Engineering Technology Research Center,Lian Yun Gang,Jiang Su,222066)

机构地区：[1]丰益表面活性材料(连云港)有限公司,江苏连云港222066 [2]江苏省(丰益)表面活性材料工程技术研究中心,江苏连云港222066

出　　处：《中国洗涤用品工业》2022年第7期54-58,共5页China Cleaning Industry

摘　　要：采用月桂酸甲酯和N,N-二甲基1,3-丙二胺为原料合成N,N-二甲基-N'-月桂酰基-1,3-丙二胺,通过筛选确定十二烷基苯磺酸锌为催化剂,实验结果表明该催化剂具有良好的催化性能。通过单因素优化确定反应的最佳工艺条件,反应温度200℃,催化剂用量3%,摩尔比1.8,反应时间10 h。将粗产品进行分子蒸馏后得到目标产品。N,N-dimethyl-N'-lauroyl-1,3-propanediamine was synthesized from methyl laurate and N,N-dimethyl-1,3-propanediamine.Zinc dodecylbenzene sulfonate was selected as the catalyst.The experimental results showed that the catalyst had good catalytic performance.The optimum reaction conditions were determined by single factor optimization.The optimum reaction temperature was 200℃,the amount of catalyst is 3%,the molar ratio is 1.8,and the reaction time is 10 h.The crude product was purified by molecular distillation,and the yield is over 95%.

关 键 词：N N-二甲基-N'-月桂酰基-1 3-丙二胺 N N-二甲基1 3-丙二胺 月桂酸甲酯 十二烷基苯磺酸锌 催化 合成 

分 类 号：TQ423[化学工程]