锡类催化剂催化合成癸二酸二异辛酯  

SYNTHESIS OF BIS(2-ETHYLHEXYL)SEBACATE OVER SN CATALYSTS

作　　者：马楷[1] 赵玉贞[1] 刘月皞[1] 李霞[1] 梅莉[1] 

机构地区：[1]中国石化润滑油有限公司重庆分公司,重庆400039

出　　处：《精细石油化工》2015年第6期47-50,共4页Speciality Petrochemicals

摘　　要：以锡类化合物催化癸二酸和异辛醇为原料合成了癸二酸二异辛酯,以GM-1为催化剂考察了反应条件对酯化反应的影响。在反应温度190℃,原料配比n(癸二酸)∶n(异辛醇)=1∶2.4,w(催化剂)=0.05%,反应时间7h条件下,酯化反应转化率99.5%以上,高温脱醇过程中粗酯的性能稳定。粗酯直接过滤即可得到产品,处理方法简单,不需要蒸馏,不产生液废和固废,催化剂可以重复使用。Bis（2-ethylhexyl） sebacata was synthesized with the esterification of sebacic acid and iso-octyl alcohol over Sn catalysts. Results showed that the GM-1 has the highest catalytic activity, and under the GM-1 catalyst, the reaction technology were investigated. The esterification reaction conversion rate could be above 99.5% when reaction temperature was 190 ℃, molar ratio of sebacic acid to iso-octyl alcohol was 1 ： 2.4, re（cat） ： re（reactants）：0.05%/1 and reaction time was 7 h. The cata- lyst can be recycled and bis（2-ethylhexyl） sebacata has excellent stability in high temperature condition. After filtrating, bis（2-ethylhexyl） sebacata can be used directly, without distiIlation procedure. No pollutants like waste water and slag were produced.

关 键 词：癸二酸二异辛酯 酯化 癸二酸 异辛醇 耐寒增塑剂 

分 类 号：TQ235.242[化学工程—有机化工]