多聚甲醛制备2-异丙基-2-异戊基-1,3-丙二醇  

Preparation of 2-isopropyl-2-isopentyl-1,3-propyldiol with paraformaldehyde system

作　　者：宋维玮[1] 谭忠[1] 周奇龙[1] 

机构地区：[1]中国石油化工股份有限公司北京化工研究院聚丙烯研究室,北京100013

出　　处：《应用化工》2013年第8期1435-1437,1440,共4页Applied Chemical Industry

摘　　要：使用多聚甲醛作原料制备了2-异丙基-2-异戊基-1,3-丙二醇(PPPO)。考察了催化剂、反应温度、反应时间对PPPO收率的影响。结果表明,最佳工艺条件为n(己醛)∶n(单体甲醛)=1∶3.1,20℃滴加30%氢氧化钠溶液,2 h加完,40℃反应8 h。在此条件下,PPPO收率为83.4%。2-Isopropyl-2-isopentyl-1,3-propyldiol was prepared using paraformaldehyde.The effect of catalyst,reaction temperature and reaction time on the productivity was studied.The results showed that the optimizing synthesis condition was obtained as follows∶ the mole ratio of hexanal to paraformaldehyde is 1∶ 3.1,the feeding temperature of adding 30% NaOH solution is 20 ℃,and 40 ℃ react for 8 h,the productivity is 83.4%.

关 键 词：1 3-二醚 Ziggler-Natta催化剂 2-异丙基-2-异戊基-1 3-丙二醇 多聚甲醛 CANNIZZARO反应 

分 类 号：TQ314.2[化学工程—高聚物工业] O623.413[理学—有机化学]