Citation: Maedeh Enayati, Hossein Faghihian. N-butyl-pyridinium tetrafluoroborate as a highly efficient ionic liquid for removal of dibenzothiophene from organic solutions[J]. Journal of Fuel Chemistry and Technology, ;2015, 43(2): 195-201. shu

N-butyl-pyridinium tetrafluoroborate as a highly efficient ionic liquid for removal of dibenzothiophene from organic solutions

Maedeh Enayati ,
Hossein Faghihian ^,

1.
Department of Chemistry, Shahreza Branch, Islamic Azad University, Shahreza Isfahan 311-86145, Iran

Corresponding author: Hossein Faghihian,
Received Date: 24 September 2014
Available Online: 25 November 2014

In this research, 1-butyl-pyridinium tetrafluoroborate ([C₄Py][BF₄]^-) was prepared by ion exchange method and was characterized by ¹H-NMR, ¹³C-NMR, and FT-IR techniques. The synthesized ionic liquid was used for removal of dibenzothiophene as a typical organosulfur pollutant from organic medium. The effect of different parameters on the extraction efficiency was studied and optimized. At the optimized conditions, 97.68% of dibenzothiophene was extracted from 1 000 mg/L n-hexane solution. The extraction efficiency obtained in this work was higher than the previous reported values. The desulfurization reaction was kinetically followed the second order mechanism. The ionic liquid was reusable and after four regeneration cycles 97% of its original extraction efficiency was retained.
- extraction,
- desulfurization,
- ionic liquids,
- dibenzothiophene
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沈阳化工大学材料科学与工程学院沈阳 110142