Measurement of Salt Effect of LiCl on Vapor-Liquid Equilibria for Ethyl Acetate + Ethanol, Ethanol + 1-Propanol, and Ethyl Acetate + Ethanol + 1-Propanol by Headspace Gas Chromatography

2003 ◽  
Vol 29 (4) ◽  
pp. 551-556
Author(s):  
Hideaki Takamatsu ◽  
Shuzo Ohe
Keyword(s):  
Gas Chromatography ◽  
Ethyl Acetate ◽  
Salt Effect ◽  
Headspace Gas Chromatography ◽  
Headspace Gas ◽  
Vapor Liquid Equilibria ◽  
Ethanol Ethanol ◽  
Vapor Liquid

Vapor–liquid equilibria of {n-heptane+toluene+[emim][DCA]} system by headspace gas chromatography

2015 ◽  
Vol 387 ◽  
pp. 209-216 ◽  
Author(s):  
Pablo Navarro ◽  
Marcos Larriba ◽  
Julián García ◽  
Emilio J. González ◽  
Francisco Rodríguez
Keyword(s):  
Gas Chromatography ◽  
Headspace Gas Chromatography ◽  
Headspace Gas ◽  
Vapor Liquid Equilibria ◽  
Vapor Liquid

Vapor-Liquid Equilibria for the Ternary System Ethyl Acetate-Acetonitrile-1-Octyl-3-Methylimidazolium Tetrafluoroborate

2013 ◽  
Vol 791-793 ◽  
pp. 141-144
Author(s):  
Xiu Min Shi ◽  
Min Wang
Keyword(s):  
Ionic Liquid ◽  
Ternary System ◽  
Ethyl Acetate ◽  
Mole Fraction ◽  
Salt Effect ◽  
Extractive Distillation ◽  
Relative Volatility ◽  
Azeotropic Point ◽  
Vapor Liquid Equilibria ◽  
Vapor Liquid

In order to research the possibility of separating the azeotrope of ethyl acetate + acetonitrile with ionic liquid as the extractant. Isobaric vapor-liquid equilibria for the ternary system ethyl acetate + acetonitrile + 1-octyl-3-methylimidazolium tetrafluoroborate ([OMIBF4) were measured at 101.32 kPa using a recirculation still. The results showed that the VLE of the ternary system was different from that of the binary system. The ionic liquid (IL) studied showed a slight crossover salt effect, which changed the relative volatility of ethyl acetate to acetonitrile and eliminated the azeotropic point when the mole fraction of IL in the liquid phase was greater than 0.05. Therefore, [OMIBF4 can be used as the extractant of extractive distillation for ethyl acetate + acetonitrile system, the suitable mole fraction of [OMIBF4 is about 10%.

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