松香甘油酯的合成  

Synthesis of light-colored glycerol ester of rosin

作　　者：厚朋禄 刘仕伟[1] 于世涛[1] 

机构地区：[1]青岛科技大学化工学院,山东青岛266042

出　　处：《化工科技》2018年第1期7-10,共4页Science & Technology in Chemical Industry

基　　金："十三五"国家重点研发计划项目(2016YFD0600804)

摘　　要：在减压体系下以高效无毒、绿色环保且廉价的羧酸盐和碱性盐类化合物为催化剂催化松香和甘油酯化反应合成松香甘油酯。考察了催化剂种类和用量、n(松香)∶n(甘油)、反应时间和反应温度对酯化反应的影响,得出较佳的反应条件为n(松香)∶n(甘油)=1∶0.77、m(松香)=15.0g、m(催化剂B)∶m(松香)=1∶50、反应时间10h、反应温度230℃。在上述条件下,所得产物松香甘油酯的酸值为9.84mg KOH/g、软化点为96.5℃、色号为8~9(铁钴法)。The glycerol ester of rosin was investigated using rosin and glycerin in the presence of efficient nontoxic,environment-friendly and cheap carboxylic acid salt and alkali salts under the pressure relief system.The effects of the variety of catalyst,catalyst amount,n（rosin）∶n（glycerin）,reaction time and reaction temperature on the catalytic performances were investigated.It was found that B was an efficient catalyst for the polymerization,finally the optimum conditions for the esterification were obtained as follows：rosin 15.0 g,m（catalyst B）∶m（rosin）=1∶50,zinc stearate 0.30 g,n（rosin）∶n（glycerin）=1∶0.77,reaction time 10 hand reaction temperature 230℃.Under the above conditions,the acid value of the glycerol ester of rosin is 9.84 mg KOH/g,the drop melting point of glycerol ester of rosin is 96.5℃ and the color of glycerol ester of rosin is 8～9（Fe-Co scale）.

关 键 词：羧酸盐 松香甘油酯 酸值 软化点 色号 

分 类 号：TQ351.47[化学工程]