杂多酸催化松香裂解反应研究  

Cracking Reaction of Rosin Over the HPA Catalysts

作　　者：郝强[1] 哈成勇[1] 刘治猛[2] 

机构地区：[1]中国科学院广州化学研究所,广州510650 [2]东莞理工学院,东莞511700

出　　处：《广州化学》1999年第4期19-25,共7页Guangzhou Chemistry

基　　金：广东省科委重点科技攻关项目

摘　　要：对杂多酸 (HPA)催化松香裂解反应及反应条件进行了研究 ,并对裂解产生的挥发油进行了气相色谱分析。研究内容包括反应温度、反应时间、催化剂种类及用量对反应结果的影响。结果表明 :在杂多酸催化剂用量大于 0 .0 5%、反应温度高于 1 80℃的条件下 ,杂多酸可将松香裂解为深色油状物 ,同时生成水和挥发性油。杂多酸的种类、用量以及反应温度的改变不影响裂解产生的挥发油的组分构成 ,但影响某些组分的相对比例。The cracking reaction of rosin catalyzed by heteropolyacids was studied.The factors affecting the reaction were discussed in detail.The main results are as follows:The cracked products of rosin were black liquid oil except for some water and primrose yellow essential oil,and the chemical constituents of the cracked essential oil were analyzed by GC;The amount of the catalysts should be over 0.05% weight of the rosin and the reaction temperature should be over 180℃;The change of temperature and HPA catalysts could not affect the constituents of the cracking products,but affect the relative percentage of some constituents in the essential oil;The cracking reaction should comprise the rupture of C-C bond and C-H bond.

关 键 词：杂多酸 松香 裂解反应 催化剂 产物 色质联用 

分 类 号：TQ351.47[化学工程] O643.36[理学—物理化学]