Oxidative Desulfurization of Dibenzothiophene Catalyzed by Polyoxometalate-Based Ionic Liquid

Abstract:

A polyoxometalate-based ionic liquid, 1-(4-sulfonic acid) methylimidazolium phosphotungstate ([MIMBS]₃PW₁₂O₄₀), was synthesized and characterized by Fourier transform infrared spectrum, nuclear magnetic resonance, electrospray ionization mass spectrum and thermogravimetric analyzer. [MIMBS]₃PW₁₂O₄₀ exhibited high activity for the extractive catalytic oxidative desulfurization process, together with H₂O₂ and CH₃CN/H₂O. The sulfur removal of DBT could reach 99.9% under wild conditions, and the catalyst could be used three times with only a slight decline in activity.

• Periodical: Advanced Materials Research (Volumes 1033-1034)
• Pages: 65-69
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1033-1034.65
• Online since: October 2014
• Authors: Min Wang, Qin Wu, Han Sheng Li*, Yun Zhao, Qing Ze Jiao
• Keywords: Catalytic, Extraction, Oxidative Desulfurization, Polyoxometalate-Based Ionic Liquid

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