P-SBA-15催化合成油酸丁酯  

Catalytic Synthesis of Butyl Oleate on P-SBA-15 Catalyst

作　　者：武宝萍[1] 许前会[1] 赵越强[1] 

机构地区：[1]淮海工学院化工学院,连云港222005

出　　处：《精细石油化工进展》2008年第7期37-39,共3页Advances in Fine Petrochemicals

摘　　要：采用后合成法,将磷酸负载在介孔分子筛 SBA-15的表面,制备出活性较高的固体酸催化剂 P-SBA-15,将该催化剂用于合成油酸丁酯。重点考察了磷酸的负载量、反应温度、酸醇摩尔比、催化剂的加入量、反应时间对酯化反应性能的影响。得到最佳反应条件为:磷酸的负载量占介孔分子筛 SBA-15用量的6%、反应温度130℃、酸醇摩尔比1:2、催化剂用量占总料量的1.5%,反应时间5 h,油酸转化率最高达61.3%,并发现介孔分子筛催化剂 P-SBA-15具有良好的稳定性。Solid acid catalyst P - SBA - 15 with high activity was synthesized by supporting phosphoric acid on mesoporous molecular sieve by post - synthesis method. The effects of the amount of phosphoric acid sup- ported, reaction temperature, molar ratio of acid to alcohol, dosage of catalyst added, reaction time on the ra- tio of esterification were examined with an emphasis. The optimum reaction conditions were as follows：dosage of phosphoric acid supported 6% （ based on the amount of mesoporous molecular sieve SBA - 15, reaction temperature 130 ℃ ,molar ratio of oleaic acid to butanol 1： 2,dosage of catalyst 1.5% （ based on the total mass of stocks） ,reaction time 5 hours. The conversion of oleic acid could be up to 61.3% and it was found that meso- porous molecular sieve P - SBA - 15 had good stability.

关 键 词：油酸丁酯 酯化反应 介孔分子筛 SBA-15 

分 类 号：TQ225.24[化学工程—有机化工]