强酸型离子交换膜催化合成草酸二异戊酯  

Synthesis of Diisopentyl Oxalate Catalyzed by Strong Acidic Ion Exchange Membrane

作　　者：李治[1] 钱孟平[1] 

机构地区：[1]华东理工大学化学系,上海200237

出　　处：《精细石油化工进展》2003年第2期12-14,共3页Advances in Fine Petrochemicals

摘　　要：以HF - 10 1强酸型离子交换膜为催化剂 ,由草酸与异戊醇为原料合成了草酸二异戊酯。考察醇酸摩尔比、反应时间、催化剂用量对酯化率的影响 ,最佳合成条件为 :醇酸摩尔比 3∶1,反应时间 3.5h ,催化剂用量 2 .0g ,反应温度为回流温度。在此条件下 ,酯化率达 90 .6 % ;催化剂重复使用 7次 ,酯化率仍达 81.17%。Diisopentyl oxalate was synthesized by the esterification of oxalic acid and isopentyl alcohol in the presence of HF-101 strong acidic ion exchange membrane. The effects of reaction time,amount of the catalyst, and molar ratio of alcohol/acid on the esterification were investigated.The esterification yield was up to 90.6% under the optimum condition. The esterification yield was still up to 81.1% after the catalyst was reused 7 times.

关 键 词：强酸型离子交换膜 催化合成 草酸二异戊酯 柴油 十六烷值改进剂 

分 类 号：TE624.8[石油与天然气工程—油气加工工程]