松香树脂酸异构化反应研究  

Study on isomerization reaction of rosin acids

作　　者：高艺美[1,2] 廖晨伊[1] 韦小杰[1] 陆爱香[1] 罗显思[1] 陈小鹏[1] 

机构地区：[1]广西大学化学化工学院,广西南宁530004 [2]原阳县第一高级中学,河南原阳453500

出　　处：《化学研究与应用》2009年第11期1533-1538,共6页Chemical Research and Application

基　　金：国家自然科学基金资助项目(30560119);广西青年科学基金资助项目(0832008)

摘　　要：以松香为原料、盐酸为催化剂、95%乙醇为重结晶溶剂进行超声波强化松香树脂酸异构化反应研究。通过正交优化实验考察了反应温度、反应时间、超声波频率、搅拌转速、盐酸用量对枞酸单离收率和纯度的影响,确定最佳异构化反应条件为:超声频率47.2 kHz,反应温度55℃,盐酸用量0.06 mL盐酸.(g松香)-1,反应时间40 min,搅拌转速300 r.min-1,枞酸单离收率为31.76%,纯度为97.32%。采用气相色谱仪和圆盘旋光仪对枞酸产品进行了分析鉴定,实验值与文献值吻合。Isomerization reaction of rosin acids was studied in combination with ultrasonic wave,during which,rosin was used as raw materials,HCl as catalyst and ethanol as solvent.The effects of reaction temperature,reaction time,ultrasound frequency,agitating velocity and HCl amount on the yield and purity of abietic acid were investigated by orthogonal experiment.The optimal conditions of isomerization had been obtained as follows： ultrasound frequency was 47.2 kHz,reaction temperature was 55℃,HCl amount was 0.06mL HCI. （g^-1rosin） , reaction time was 40 rain, agitating velocity was 300 r · min^-1. The yield of abietic acid was31.76%, and the purity was 97.32%. The products were analyzed and identified with gas Chromatography and disc polarimeter, the experimental values were in good agreement with the values of literatures.

关 键 词：松香树脂酸 异构 枞酸 正交实验 

分 类 号：O621.253[理学—有机化学]