[1]郭莉,张林涛,潘切,等.活性炭负载磷钨酸季铵盐催化末端烯烃环氧化研究[J].长江大学学报(自科版),2017,14(17):6-11.
 Guo Li,Zhang Lintao,Pan Qie,et al.Study on Catalyst Terminal Olefin Epoxidation of Activated Carbon Supported [Π-C5H5N(CH2)15CH3]3[PW12O40][J].Journal of Yangtze University(Natural Science Edition),2017,14(17):6-11.
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活性炭负载磷钨酸季铵盐催化末端烯烃环氧化研究
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《长江大学学报》(自科版)[ISSN:1673-1409/CN:42-1741/N]

卷:
14
期数:
2017年第17期
页码:
6-11
栏目:
《化学工程与技术》
出版日期:
2017-09-10

文章信息/Info

Title:
Study on Catalyst Terminal Olefin Epoxidation of Activated Carbon Supported [Π-C5H5N(CH2)15CH3]3[PW12O40]
文章编号:
1673 1409 (2017)17 0006 06
作者:
郭莉 张林涛 潘切 鄢吉朝
长江大学化学与环境工程学院, 湖北荆州424023
Author(s):
Guo Li Zhang Lintao Pan Qie
Yangtze University, Jingzhou, 434023
关键词:
磷钨酸季铵盐活性炭1-十六烯环氧化
Keywords:
phosphotungstic acid quaternary ammonium salt terminal olefins epoxidation
分类号:
O643.32
文献标志码:
A
摘要:
考察了杂多酸季铵盐对1-十六烯的催化环氧化活性。研究了以磷钨酸季铵盐为催化剂、H2O2 为氧化剂、乙酸乙酯为溶剂条件下1-十六烯环氧化制备环氧十六烷的工艺条件,探讨了多相催化剂对催化活性的影响。结果表明,磷钨酸季铵盐负载在活性炭表面后,催化活性得到很大的提高。利用该催化剂催化1-十六烯环氧化,当负载量为30%、反应时间6h、反应温度为60℃时,选择性几乎为100%,转换率达到56%。最后用FTIR和SEM 对合成的活性炭负载磷钨酸季铵盐催化剂进行了表征,磷钨酸季铵盐负载在活性炭上后其活性结构没有发生明显的变化,催化剂负载量为30%时,磷钨酸季铵盐均匀地负载在活性炭表面。
Abstract:
In this paper, the catalytic epoxidation activity of quaternary ammonium salts of heteropolyacids to 1-hexadecene is investigated. The process conditions for the preparation of epoxidecane by 1-hexadecene epoxidation with quaternary ammonium salt of phosphotungstic acid as catalyst and H2O2 as oxidant and ethyl acetate as solvent are studied . The effects of heterogeneous catalysts on the catalytic activity are investigated. The results show that the catalytic activity is greatly improved. After the [Π-C5H5N(CH2)15CH3]3[PW12O40] is supported by activated carbon, the epoxidation of 1-hexadecane is studied, when the load is 30wt%, reaction time is6h, the reaction temperature is 60℃, the selectivity is the almost of 100% ,the conversion rate is 56%. The catalysts are characterized by FTIR and SEM. The active structure of phosphotungstic acid quaternary ammonium salt is without obvious changes on the active carbon, when the catalysts is ar 30%, the phosphotungstic acid quaternary ammonium salt is evenly appeared on the surface of the active carbon.

参考文献/References:

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备注/Memo

备注/Memo:
[作者简介] 郭莉(1967-), 女, 讲师, 现主要从事有机化学实验及分析检测方面的教学与研究工作; 274817779@qq.com。
更新日期/Last Update: 2017-10-18