The Molecular Behaviors of Pyridinium/Imidazolium Based Ionic Liquids and Toluene Binary Systems

Author(s):  
Hong Chen ◽  
Zonghua Wang ◽  
Xianzhen Xu ◽  
Shida Gong ◽  
Yu Zhou
Keyword(s):  

Imidazolium and pyridinium-based ionic liquids (ILs) have attracted increasing attention in the extraction of aromatic VOCs. However, fundamental studies on the mechanism of capturing aromatic VOCs have been less reported....

2019 ◽  
Vol 128 ◽  
pp. 415-423 ◽  
Author(s):  
Xue Wang ◽  
Dawei Shang ◽  
Shaojuan Zeng ◽  
Yuanming Wang ◽  
Xiaochun Zhang ◽  
...  

Molecules ◽  
2020 ◽  
Vol 25 (23) ◽  
pp. 5687
Author(s):  
Marta Królikowska ◽  
Marek Królikowski ◽  
Urszula Domańska

Experimental and theoretical studies on thermodynamic properties of quinolinium-based ionic liquids (ILs) based on bis(trifluoromethylsulfonyl)imide anion (namely N-butyl-quinoloinium bis(trifluoromethylsulfonyl)imide, [BQuin][NTf2], N-hexylquinoloinium bis(trifluoromethyl-sulfonyl)imide, [HQuin][NTf2], and N-octylquinoloinium bis(trifluoromethyl-sulfonyl)imide, [OQuin][NTf2]) with aromatic sulfur compounds and heptane, as a model compound of fuel were examined in order to assess the applicability of the studied ionic liquids for desulfurization of fuels. With this aim, the temperature-composition phase diagrams of 13 binary mixtures composed of organic sulfur compounds (thiophene, benzothiophene, or 2-methylthiophene) or heptane and ionic liquid (IL) were investigated at ambient pressure. A dynamic method was used to determine the (solid–liquid) equilibrium phase diagrams in binary systems over a wide composition range and temperature range from T = 255.15 to 365.15 K up to the fusion temperature of ILs. The immiscibility gap with an upper critical solution temperature (UCST) was observed for each binary system under study. The influence of the alkane chain length of the substituent on the IL cation and of the sulfur compounds (the aromaticity of the solvent) was described. The experimental (solid + liquid) phase equilibrium dataset were successfully correlated using the well-known NRTL equation.


2015 ◽  
Vol 69 (10) ◽  
Author(s):  
Lu Bai ◽  
Shu-Ni Li ◽  
Quan-Guo Zhai ◽  
Yu-Cheng Jiang ◽  
Man-Cheng Hu

AbstractThermophysical properties, such as density (ρ), refractive index (n


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