| 松香合成(-)枞酸的异构反应动力学研究 |
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| 引用本文： | 刘红军,周永红,冯国东,郭晓昕. 松香合成(-)枞酸的异构反应动力学研究[J]. 化学通报, 2009, 72(7) |
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| 作者姓名： | 刘红军 周永红 冯国东 郭晓昕 |
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| 作者单位： | 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,南京,210042;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,南京,210042;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,南京,210042;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,南京,210042 |
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| 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Inca=-1.657×10-2t+3.352,反应速率常数1.657×10-2t-1;新枞酸为Inca=-1.385×10-2t+2.793,反应速率常数1.385×10->t-1.
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| 关 键 词： | (-)枞酸 松香 异构反应动力学 阳离子交换树脂 |
Kinetics of Synthesis (-)Abietic acid Based on Rosin |
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| Liu Hongjun,Zhou Yonghong,Feng Guodong,Guo Xiaoxin. Kinetics of Synthesis (-)Abietic acid Based on Rosin[J]. Chemistry, 2009, 72(7) |
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| Authors: | Liu Hongjun Zhou Yonghong Feng Guodong Guo Xiaoxin |
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| Affiliation: | Institute of Chemical Industry of Forest Products;Chinese Academy of Forestry;Key and Open Laboratory on Forest Chemical Engineering;State Forestry Administration;Nanjing 210042 |
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| Abstract: | 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... |
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