微波辐射固体酸催化合成邻苯二甲酸二异辛酯  

Synthesis of Di(2 ethylhexyl)phthalate Catalyzed by Solid Acid under Microwave Irradiation

作　　者：苑克国[1] 樊兴君[1] 李楠[1] 谭干祖[1] 

机构地区：[1]中国科学院兰州化学物理研究所

出　　处：《精细化工》1998年第4期31-35,共5页Fine Chemicals

摘　　要：以活性炭担载对甲苯磺酸作催化剂，采用微波辐射技术，苯酐和异辛醇直接酯化合成邻苯二甲酸二异辛酯。最佳反应条件为：苯酐和异辛醇的配比为０．１５ｇ∶０．６４ｍｌ，催化剂０６ｇ，微波功率５２５Ｗ，微波辐射时间５５ｓ，转化率９１５％。催化剂易分离，且可重复使用。The synthesis of di(2 ethylhexyl)phthalate was performed by esterification of 2 ethylhexyl alcohol and phthalic anhydride in catalysis of p toluenesulfonic acid loaded on active carbon under microwave irradiation. The optimum reaction conditions were as follow:the ratio of phthalic anhydride to 2 ethylhexyl alcohol was 0.15g∶0.64ml,catalyst,microwave power,and microwave irradiation time were 0.6g,525W,and 55s respectively.The conversion rate of phthalic anhydride in the synthesis of DOP was up to 91.5%,the catalyst could be easily separated from reaction product,and used repeatedly.

关 键 词：微波辐射 固体酸 催化剂 增塑剂 DOP 

分 类 号：TQ414.1[化学工程]