| 相转移催化H2O2环氧化环己烯合成环氧环己烷 |
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| 引用本文： | 王振兴,章亚东,唐平贵.相转移催化H2O2环氧化环己烯合成环氧环己烷[J].精细化工,2006,23(10):1023-1026. |
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| 作者姓名： | 王振兴 章亚东 唐平贵 |
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| 作者单位： | 郑州大学,化工学院,河南,郑州,450002;郑州大学,化工学院,河南,郑州,450002;郑州大学,化工学院,河南,郑州,450002 |
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| 摘 要： | 对反应控制相转移催化剂制备方法进行了改进,催化剂产率可达94%,并用红外光谱(IR)和元素分析对催化剂进行了表征;将催化剂用于以w(H2O2)=34.5%为氧化剂,以质量分数76.7%的工业粗环己烯为原料合成环氧环己烷;探讨了反应时间、反应温度、环己烯与H2O2的摩尔比、催化剂用量、溶剂用量等因素对反应的影响。获得的较佳合成条件(以0.08 mol H2O2计)为:反应温度40℃,反应时间90 m in,催化剂用量0.6 g,n(C6H10)∶n(H2O2)=2.5∶1,溶剂1,2-二氯乙烷70 mL。该条件下环氧环己烷平均选择性为96.1%,环氧环己烷的平均收率达91.7%。将回收的催化剂用于反应,环氧环己烷的平均选择性和平均收率分别为95.3%和90.9%。
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| 关 键 词： | 环己烯 环氧化 环氧环己烷 相转移催化剂 |
| 文章编号： | 1003-5214（2006）10-1023-04 |
| 收稿时间： | 2006-01-11 |
| 修稿时间： | 2006-01-112006-05-17 |
Cyclohexene Oxide Synthesized by Epoxidation of Cyclohexene and Hydrogen Peroxide with Phase Transfer Catalyst |
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| WANG Zhen-xing,ZHANG Ya-dong,TANG Ping-gui.Cyclohexene Oxide Synthesized by Epoxidation of Cyclohexene and Hydrogen Peroxide with Phase Transfer Catalyst[J].Fine Chemicals,2006,23(10):1023-1026. |
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| Authors: | WANG Zhen-xing ZHANG Ya-dong TANG Ping-gui |
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| Affiliation: | College of Chemical Engineering, Zhengzhou University, Zhengzhou 450002, Henan, China |
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| Abstract: | A phase transfer catalyst(PTC) was prepared with improved method and characterized by IR spectrum and elementary analysis.Cyclohexene oxide was synthesized by epoxidation of raw cyclohexene(w(C_6H_(10))=76.7%) and industrial hydrogen peroxide(w(H_2O_2)=34.5%) as an oxidant with the PTC.The proper synthesis conditions were reaction temperature 40 ℃,reaction time 90 min,n(C_6H_(10))∶n(H_2O_2)=2.5∶1(based on 0.08 mol H_2O_2),catalyst 0.6 g and solvent 1,2-dichloroethane 70 mL.The average selectivity and yield of cyclohexene oxide were 96.1% and 91.7%,respectively.With the reused catalyst,the average selectivity and yield of cyclohexene oxide could attain 95.3% and 90.9%,respectively. |
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| Keywords: | cyclohexene epoxidation cyclohexene oxide phase transfer catalyst |
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