固体酸催化剂SnCl_4/C催化合成草酸二丁酯  

Catalytic Synthesis of Dibutyl Oxalate with Solid Acid SnCl_4/C

作　　者：蔡新安[1] 倪艳翔 章慧芳[1] 黎康华 李军[1] 杨晓波[1] 

机构地区：[1]景德镇高等专科学校生化系,景德镇333000

出　　处：《精细石油化工进展》2008年第12期27-29,共3页Advances in Fine Petrochemicals

基　　金：景德镇高等专科学校科研基金重点资助项目(08004)

摘　　要：以 SnCl_4/C 为催化剂,草酸和正丁醇为原料,通过直接酯化合成了草酸二丁酯。考察了酯化反应的主要条件对产物收率的影响,得出了最佳反应条件:醇酸摩尔比3.5:1、催化剂用量为总投料质量的2%、反应时间60 min。在此条件下,收率可达96.6%。Dibutyl oxalate was synthesized by directly esterification of oxalic acid and n-butanol using SnCl_4/C as catalyst.The effects of main factors of reaction on the product,yield were investigated and the opti- mal conditions were obtained as follows:molar ratio of alcohol to acid 3.5:1,mass ratio of catalyst 2% (based on the total mass of reactants),and reaction time 60 rain.Under the optimal conditions,the yield of dibutyl oxalate was 96.6%.

关 键 词：草酸二丁酯 固体酸催化剂 酯化反应 

分 类 号：TQ225.24[化学工程—有机化工]