Fast Oxidative Removal of Refractory Aromatic Sulfur Compounds by a Magnetic Ionic Liquid. Issue 1 (21st November 2013)

• Record Type: Journal Article
• Authors: Jiang, Wei; Zhu, Wenshuai; Li, Huaming; Xue, Jun; Xiong, Jun; Chang, Yonghui; Liu, Hui; Zhao, Zhen
• Is Part Of: Chemical engineering & technology. Volume 37:Issue 1(2014:Jan.)
• Page Start: 36
• Page End: 42
• Publication Date: 2013-11-21
• Subjects: Chemical engineering -- Periodicals; Chemical processes -- Periodicals; 660.05
• DOI: 10.1002/ceat.201300376
• Languages: English
• ISSNs: 0930-7516

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Magnetic ionic liquids (MIL) are extensively used in extraction and catalytic processes. Here, a series of MIL, i.e., 1‐<italic>n</italic>‐butyric acid‐3‐methylimidazolium chloride/<italic>x</italic>FeCl₃ ([C₃H₆COOHmim]Cl/<italic>x</italic>FeCl₃; <italic>x</italic> = 0.5, 1, 1.5, 2), were synthesized and characterized by infrared spectroscopy, visible absorption spectrometry, and electrospray ionization mass spectrometry. The MIL [C₃H₆COOHmim]Cl/2FeCl₃ was found to be highly active for the extraction and catalytic oxidative desulfurization of a model oil under mild conditions. Of note, the removal of benzothiophene, which has been regarded as a refractory aromatic sulfur compound, could be achieved at up to 100 % in 10 min. After reaction, the MIL could be easily separated from the model oil by applying an external magnetic field, due to its paramagnetic properties.</p> </abstract>