Isobaric Vapor−Liquid Equilibria for the Binary System 3-Methylpentane + Ethanol and for the Ternary System 2-Methyl-2-propanol + Ethanol + 3-Methylpentane at 101.3 kPa

2000 ◽  
Vol 45 (5) ◽  
pp. 882-886 ◽  
Author(s):  
Carmen Gabaldón ◽  
Vicente Martínez-Soria ◽  
Paula Marzal ◽  
Juan B. Montón
Keyword(s):  
Binary System ◽  
Ternary System ◽  
System 2 ◽  
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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