3-甲胺基-1,2-丙二醇生产新工艺  

New Technology For The Production Of 3-Methylamino-1,2-Propandiol

作　　者：张中法 郭学阳 丁爱梅 郭祥荣 黄慧 吕彩玲 张庆国 张志刚 张广宁 周娟娟 魏丽华[2] 

机构地区：[1]潍坊中业化学有限公司,山东潍坊261031 [2]潍坊学院,山东潍坊261041

出　　处：《贵州化工》2010年第2期21-23,共3页Guizhou Chemical Industry

摘　　要：环氧氯丙烷在复合酸性双组分催化剂作用下经过水解、蒸馏等过程制得纯度99.5%(G/G)以上的中间体3-氯-1,2-丙二醇(氯代甘油),然后与一甲胺在碱性催化剂存在下进行胺化反应,反应液经过脱除去一甲胺,除去水,过滤除盐,真空刮板薄膜蒸发等过程得到含量99.5%(气相色谱分析)、无色透明的3-甲胺基-1,2-丙二醇。该工艺已在100t/a装置上运行近一年。Through the process of hydroylytic reation and distillation etc. and under the exsisting of compound double acid catalysts, 3 - ehloro - 1,2 - propanediol which purity is above 99.5% （GC） can be earned from chloropropylene , then using 3 - chloro - 1,2 - propanediol react with monomethylamine solution while exsiting akalic catalyst to carry amination to produce 3 - methylamino - 1,2 - propanediol which is colorless liduid and 99.5% （GC） content by the course of eliminating monomethylamine, eliminating water, eliminating salt by filter, making use of scraper - type thin - film evaporator. The technology has carried out in 100t/a industrial scale for nearly one year.

关 键 词：3-甲胺基-1 2-丙二醇 3-氯-1 2-丙二醇 胺化 真空刮板薄膜蒸发 

分 类 号：TQ223.162[化学工程—有机化工]