文献类型：期刊文献

中文题名：松香合成(-)枞酸的异构反应动力学研究

英文题名：Kinetics of Synthesis (-)Abietic acid Based on Rosin

作者：刘红军[1] 周永红[1] 冯国东[1] 郭晓昕[1]

第一作者：刘红军

机构：[1]中国林业科学研究院林产化学工业研究所国家林业局林产化学工程重点开放实验室

年份：2009

期号：7

起止页码：649-654

中文期刊名：化学通报

外文期刊名：Chemistry

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：(-)枞酸;松香;异构反应动力学;阳离子交换树脂

外文关键词：（-）Abietic acid, Rosin, Heterogeneous reaction kinetics, Cation exchange resin

分类号：O643.1;TQ351.471

摘要：天然(-)枞酸的含量占中国脂松香的40%左右,通过绿色制备工艺得到的(-)枞酸产物纯度达到99%以上,其得率在80%以上。使用GC-MS测定了松香树脂酸在大孔强酸性阳离子交换树脂催化下,异构重排反应生成(-)枞酸的反应动力学,结果符合一级反应方程,动力学方程:长叶松酸为lnca=-1.657×10-2t+3.352,反应速率常数1.657×10-2t-1;新枞酸为lnca=-1.385×10-2t+2.793,反应速率常数1.385×10-2t-1。
The preparation of （-） abietic acids by using Chinese gum rosins as starting material through an environmental acceptance method with high purity and yield are reported. （-） Abietic acids were synthesized via the heterogeneous and rearrangement of rosin acids by catalysis of cation exchange resin. The kinetics of the reaction was analyzed with GC-MS. The results show that the kinetics of the heterogeneous and rearrangement of rosin acids are coincided with first order reaction equation,which can be described as lnca = - 1.657 × 10^-2 t ＋ 3.352 with k = 1.657 × 10^-2 t ^- 1 for plustric acid and lnca = - 1.385 × 10^-2 t ＋ 2.793 with k = 1.385 × 10^-2 t^-1 for neoabietic acid,respectively.