纳米复合钨硅杂多酸催化合成凤梨醛  

Catalytic Synthesis of Allyl Hexanoate by nano-H_4SiW_(12)O_(40)/SiO_2

作　　者：张福捐[1] 王连广[2] 盛淑玲[1] 

机构地区：[1]许昌学院化学系,河南许昌461000 [2]许昌职业技术学院,河南许昌461000

出　　处：《酿酒科技》2010年第1期23-24,共2页Liquor-Making Science & Technology

基　　金：河南省教育厅自然科学基金项目(2007150037)

摘　　要：以纳米复合钨硅杂多酸为催化剂,己酸和丙烯醇为原料,通过酯化反应合成凤梨醛。结果表明,在醇酸物质的量比为1.8∶1,催化剂用量5%,带水剂10mL,反应时间2h的条件下,酯化率可达97.2%。Allyl hexanoate was synthesized by caproic acid and propenol as raw materials through esterification reaction with nano-H4SiW12O40/SiO2 as catalyst. The factors influencing esterification were investigated. The optimum technical parameters were summed up as follows： molratio of alcohol and acid was 1.8：1, the use level of catalyst was 5 %, 10 mL water-taking reagent used, and 2 h esterification. Under the above conditions, the esterifying ratio could reach up to 97.2 %.

关 键 词：凤梨醛 纳米复合钨硅酸 绿色催化剂 催化酯化 

分 类 号：TQ655[化学工程—精细化工]