羧基功能化离子液体催化二苯并噻吩氧化脱硫

张薇; 丁永萍; 宫敬; 宋溪明

羧基功能化离子液体催化二苯并噻吩氧化脱硫

辽宁大学化学院绿色合成与先进材料制备化学辽宁省重点实验室, 辽宁沈阳 110036

基金项目: 辽宁省教育厅自然科学基金(2009S042);辽宁大学科学基金(2008LDQN09)。

详细信息

通讯作者:
宋溪明, Tel: (024)62202378; E-mail:songlab@lnu.edu.cn。

中图分类号: O643
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出版历程
- 收稿日期: 2011-06-19
- 修回日期: 2011-09-02
- 刊出日期: 2012-05-31

Oxidative desulfurization of dibenzothiophene catalyzed by carboxyl-functionalized ionic liquid [cmmim]BF₄

Liaoning Provincial Key Laboratory for Green Synthesis and Preparactive Chemistry of Advanced Materials, College of Chemistry, Liaoning University, Shenyang 110036, China

Funds: 辽宁省教育厅自然科学基金(2009S042);辽宁大学科学基金(2008LDQN09)。

摘要

摘要: 以羧基功能化离子液体1-甲基-3-羧甲基咪唑四氟硼酸盐([cmmim]BF₄)为催化剂和萃取剂,过氧化氢为氧化剂,催化氧化二苯并噻吩(DBT)。结果表明,当反应温度为60 ℃,O/S摩尔比为6,反应时间80 min时,DBT的转化率可以达到100%。离子液体回收重复使用四次,催化活性无明显下降。
- 羧基功能化 /
- 离子液体 /
- 氧化脱硫 /
- 二苯并噻吩
Abstract: A carboxyl-functionalized ionic liquid, 1-methyl-3-methylcarboxylate imidazolium tetrafluoroborate ([cmmim]BF₄), was applied as the catalyst and extractant in the oxidative desulfurization system for the removal of dibenzothiophene (DBT) in the presence of H₂O₂ in model oil. Several parameters including the amount of hydrogen peroxide, temperature and reaction time were investigated. The catalyst used shows a good activity with a DBT conversion of 100% at 60 ℃, O/S mol ratio 6 and the reaction time of 80 min. The activity of ionic liquid BF₄ decreases little after recycling for 4 times.
- carboxyl-functionalized /
- ionic liquid /
- oxidative desulfurization /
- dibenzothiophene

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参考文献(18)

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