化工学报 ›› 2013, Vol. 64 ›› Issue (10): 3647-3651.DOI: 10.3969/j.issn.0438-1157.2013.10.022

• 分离工程 • 上一篇    下一篇

[Cnmim]Br/FeCl3型离子液体萃取脱除二苯并噻吩

张娟, 李俊盼, 任腾杰, 胡颜荟, 赵地顺   

  1. 河北科技大学化学与制药工程学院, 河北 石家庄 050018
  • 收稿日期:2013-02-19 修回日期:2013-05-03 出版日期:2013-10-05 发布日期:2013-10-05
  • 通讯作者: 张娟(1974-),女,博士,副教授
  • 作者简介:张娟(1974-),女,博士,副教授。
  • 基金资助:

    国家自然科学基金项目(21106032)

Extraction desulfurization of dibenzothiophene with [C3—8mim]Br/FeCl3 ionic liquids

ZHANG Juan, LI Junpan, REN Tengjie, HU Yanhui, ZHAO Dishun   

  1. School of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, Hebei, China
  • Received:2013-02-19 Revised:2013-05-03 Online:2013-10-05 Published:2013-10-05
  • Supported by:

    supported by the National Natural Science Foundation of China(21106032).

摘要: 合成了6种咪唑型离子液体[C3—8mim]Br/FeCl3,采用红外光谱和拉曼光谱对其进行表征,并考察了离子液体对二苯并噻吩的萃取脱除效果。结果发现,[C3mim]Br/FeCl3的萃取脱硫效果最佳,升高温度和增大剂油比均有利于脱硫率的提高,剂油比1:1(体积比)时,萃取时间达到12 min就可使脱硫率高达92%。且萃取反应完成后,离子液体不做处理继续重复使用,重复使用5次,脱硫率可以达到60%。

关键词: [Cnmim]Br/FeCl3离子液体, 二苯并噻吩, 萃取, 脱硫率

Abstract: Six sorts of [C3—8mim]Br/FeCl3 ionic liquids were synthesized,and characterized with FT-IR and Raman spectroscopy.The extraction performance of ionic liquids during the removal of dibenzothiophene(DBT)was investigated.The extraction of DBT with [C3mim]Br/FeCl3 was the best. An increase of volume ratio of ionic liquid to oil and a higher temperature benefited the desulfurization performance.The removal ratio of DBT was up to 92% in 12 min and with volume ratio of ionic liquid to oil 1:1.Reacted ionic liquid without treatment was used again for 5 times,and the removal ratio of DBT decreased gradually to 60%.

Key words: [Cnmim]Br/FeCl3 ionic liquids, dibenzothiophene, extraction, desulfurization ratio

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