逐级酸化法制备高纯度脱氢枞酸  

Preparation of high purity dehydroabietic acid by fractional acidification

作　　者：祝远姣[1] 陈小鹏[1] 陈月圆[1] 陈祖芬[1] 钟华[1] 童张法[1] 

机构地区：[1]广西大学化学化工学院,广西南宁530004

出　　处：《现代化工》2007年第9期38-41,共4页Modern Chemical Industry

基　　金：国家自然科学基金资助项目(30560119);广西青年基金资助项目(0640001);广西自然科学基金资助项目(0575003);广西研究生教育创新计划项目(20061059;30817M30);广西大学科研基金资助项目(X061020)

摘　　要：以歧化松香为原料，采用树脂酸逐级酸化分离的方法制备高纯度脱氢枞酸。实验结果表明脱氢枞酸钠盐溶液的最佳质量分数为2％～5％，高纯度脱氢枞酸沉淀析出的pH为3．78～8．60，稀盐酸最佳浓度为0．1mol／L，酸化级数为8级，所得脱氢枞酸最高纯度达99．99％，收率为62．23％。High purity dehydmabietic acid was prepared from disproportionated rosin by means of fractional acidification. The experimental results showed that the purity of dehydmabietic acid prepared could be 99.99% with a yeild of 62.23% when the optimum concentration of rosin acids salt was 2% - 5% （wt） with a pH range of 3.78 - 8.60 for high purity dehydmabletic acid to precipitate, an optimum concentration of hydrochloric acid of 0.1 mol/L, and acidification fractions of 8.

关 键 词：脱氢枞酸 高纯度 制备 逐级酸化法 

分 类 号：TQ420.6[化学工程]