| 用分子筛催化异构化α-蒎烯和β-蒎烯及其混合体系的研究 |
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| 引用本文： | 李桂珍,刘雄民,马丽,李伟光. 用分子筛催化异构化α-蒎烯和β-蒎烯及其混合体系的研究[J]. 应用化工, 2007, 36(2): 120-123 |
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| 作者姓名： | 李桂珍 刘雄民 马丽 李伟光 |
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| 作者单位： | 广西大学,化学化工学院,广西,南宁,530004 |
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| 基金项目： | 广西自然科学基金;广西大学校科研和教改项目 |
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| 摘 要： | 以HY型分子筛为催化剂,开展了α-蒎烯、β-蒎烯及其混合体系的异构化反应研究,考察了α-蒎烯和β-蒎烯含量、催化剂用量、反应温度对异构化反应的影响。结果表明,催化剂在350℃下焙烧2h,当其用量为2.5g/100mL原料,反应在140℃下保持4h时,松节油有更好的异构化效果,转化率达96.13%,异构化产物中莰烯的含量为40.80%,苧烯为24.24%;并且发现了原料中的氧化物对异构化反应产生不利影响。
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| 关 键 词： | HY型分子筛 α-蒎烯 β-蒎烯 松节油 异构化 |
| 文章编号： | 1671-3206(2007)02-0120-04 |
| 修稿时间： | 2006-11-15 |
Study on isomerization of α-pinene and β-pinene and their mixed system catalyzed by molecular sieves |
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| LI Gui-zhen,LIU Xiong-min,MA Li,LI Wei-guang. Study on isomerization of α-pinene and β-pinene and their mixed system catalyzed by molecular sieves[J]. Applied chemical industry, 2007, 36(2): 120-123 |
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| Authors: | LI Gui-zhen LIU Xiong-min MA Li LI Wei-guang |
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| Affiliation: | College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China |
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| Abstract: | The isomerization reaction of α-pinene,βpinene and their mixed system catalyzed by HY molecular sieves was studied.The effects of the content of α-pinene and β-pinene,amount of catalyst and reaction temperature on the isomerization reaction were discussed.The result showed that the catalyst was roasted at 350 ℃ for 2 h,when the ratio of it to raw materials was 2.5 g/100 mL,and the reaction was kept at 140 ℃ for 4 h,turpentine had the higher conversion rate which reached 96.13%.In the products,the content of camphene and limonene was 40.80% and 24.24% respectively,but the oxide in raw materials had bad effect on isomerization reaction. |
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| Keywords: | HY molecular sieves α-pinene β-pinene turpentine isomerization |
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