2 0 2009 li zha 1 journal Original Li, Q.[Qunsheng] Zhang, J.[Jiguo] Lei, Z.[Zhigang] Zhu, J.[Jianjun] Xing, F.[Fengying] J. Chem. Eng. Data 2009 2009-02-25 Isobaric Vapor-Liquid Equilibrium for Ethyl Acetate + Ethanol + 1-Ethyl-3-methylimidazolium Tetrafluoroborate Isobaric vapor-liquid equilibrium (VLE) data for ethyl acetate (1) + ethanol (2) containing ionic liquid (IL) 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM]+[BF4]-) (3) at atmospheric pressure (101.32 kPa) were measured with a modified Othmer still. It was observed that the VLE data containing the IL were obviously different from that of the IL-free system. The IL investigated showed a notable salting-out effect, which enhanced the relative volatility of ethyl acetate to ethanol and gave rise to the elimination of the azeotropic point at a specific IL mole fraction. It was found that the salting-out effect followed the order of x3 ) 0.30 greater than x3 ) 0.20 greater than x3 ) 0.07. The measured ternary data were correlated using the NRTL model. 10.1021/je800175s 54 194-197 1 1-ethyl-3-methylimidazolium tetrafluoroborate C6H11BF4N2 1 Synthesized by others 1 Dried by vacuum heating 1 98 2 HPLC 1 .5 1 Karl Fischer titration 2 ethyl ethanoate C4H8O2 1 Commercial source 1 None used 1 99.8 3 Gas chromatography 3 ethanol C2H6O 1 Commercial source 1 None used 1 99.8 3 Gas chromatography 3 1 2 1 Principal objective of the work JAB TRC 2/12/2009 1 Boiling temperature at pressure P, K Ebulliometric method (Recirculating still) Liquid Direct value, X 1 Author Liquid Gas Pressure, kPa 101.32 5 Author .1 1 Mole fraction 2 Liquid 1 Author 1 0 0 1 351.46 5 1 .1 1 .049 2 1 350.13 5 1 .1 1 .107 3 1 348.85 5 1 .1 1 .195 3 1 347.04 5 1 .1 1 .323 3 1 346.13 5 1 .1 1 .418 3 1 345.46 5 1 .1 1 .517 3 1 345.06 5 1 .1 1 .61 3 1 345 5 1 .1 1 .709 3 1 345.36 5 1 .1 1 .805 3 1 345.94 5 1 .1 1 .913 3 1 347.55 5 1 .1 1 .962 3 1 348.86 5 1 .1 1 1 4 1 350.25 5 1 .1 3 1 2 1 Principal objective of the work JAB TRC 2/12/2009 1 Mole fraction Chromatography 2 Gas Direct value, X 1 Author Gas Liquid Pressure, kPa 101.32 5 Author .1 1 Mole fraction 2 Liquid 1 Author 1 0 0 1 0 0 1 .002 1 .049 2 1 .106 3 1 .002 1 .107 3 1 .192 3 1 .002 1 .195 3 1 .299 3 1 .002 1 .323 3 1 .389 3 1 .002 1 .418 3 1 .468 3 1 .002 1 .517 3 1 .53 3 1 .002 1 .61 3 1 .592 3 1 .002 1 .709 3 1 .654 3 1 .002 1 .805 3 1 .73 3 1 .002 1 .913 3 1 .836 3 1 .002 1 .962 3 1 .924 3 1 .002 1 1 4 1 1 4 1 .002 3 1 2 1 1 1 Principal objective of the work JAB TRC 2/12/2009 1 Mole fraction Chromatography 2 Gas Direct value, X 1 Author Gas Liquid Pressure, kPa 101.32 5 Author .1 1 Mole fraction 1 Liquid 1 Author 2 Mole fraction 2 Liquid 1 Author 1 .007198 4 2 .102 3 1 .191 3 1 .002 1 .007176 4 2 .195 3 1 .315 3 1 .002 1 .007178 4 2 .309 3 1 .431 3 1 .002 1 .007232 4 2 .415 3 1 .51 3 1 .002 1 .007176 4 2 .51 3 1 .57 3 1 .002 1 .007157 4 2 .607 3 1 .641 3 1 .002 1 .007235 4 2 .653 3 1 .674 3 1 .002 1 .007174 4 2 .696 3 1 .714 3 1 .002 1 .007144 4 2 .732 3 1 .744 3 1 .002 1 .007099 4 2 .764 3 1 .771 3 1 .002 1 .00719 4 2 .893 3 1 .881 3 1 .002 1 .00718 4 2 .95 3 1 .941 3 1 .002 1 .02011 5 2 .092 2 1 .18 3 1 .002 1 .020135 5 2 .192 3 1 .324 3 1 .002 1 .020244 5 2 .291 3 1 .444 3 1 .002 1 .020262 5 2 .41 3 1 .545 3 1 .002 1 .02026 5 2 .517 3 1 .631 3 1 .002 1 .020125 5 2 .619 3 1 .704 3 1 .002 1 .019938 5 2 .65 3 1 .725 3 1 .002 1 .020577 5 2 .681 3 1 .749 3 1 .002 1 .020126 5 2 .717 3 1 .775 3 1 .002 1 .020012 5 2 .903 3 1 .915 3 1 .002 1 .020094 5 2 .948 3 1 .953 3 1 .002 1 .029862 5 2 .098 2 1 .207 3 1 .002 1 .029748 5 2 .213 3 1 .369 3 1 .002 1 .029497 5 2 .326 3 1 .495 3 1 .002 1 .028982 5 2 .412 3 1 .577 3 1 .002 1 .028516 5 2 .53 3 1 .673 3 1 .002 1 .028198 5 2 .613 3 1 .737 3 1 .002 1 .028193 5 2 .628 3 1 .747 3 1 .002 1 .028065 5 2 .705 3 1 .8 3 1 .002 1 .028003 5 2 .774 3 1 .844 3 1 .002 1 .0276 5 2 .872 3 1 .911 3 1 .002 1 .02751 5 2 .91 3 1 .937 3 1 .002 3 1 2 1 1 1 Principal objective of the work JAB TRC 2/12/2009 1 Boiling temperature at pressure P, K Ebulliometric method (Recirculating still) Liquid Direct value, X 1 Author Liquid Gas Pressure, kPa 101.32 5 Author .1 1 Mole fraction 1 Liquid 1 Author 2 Mole fraction 2 Liquid 1 Author 1 .007198 4 2 .102 3 1 350.25 5 1 .1 1 .007176 4 2 .195 3 1 348.6 5 1 .1 1 .007178 4 2 .309 3 1 347.35 5 1 .1 1 .007232 4 2 .415 3 1 346.55 5 1 .1 1 .007176 4 2 .51 3 1 346.3 5 1 .1 1 .007157 4 2 .607 3 1 346.36 5 1 .1 1 .007235 4 2 .653 3 1 346.44 5 1 .1 1 .007174 4 2 .696 3 1 346.5 5 1 .1 1 .007144 4 2 .732 3 1 346.94 5 1 .1 1 .007099 4 2 .764 3 1 347.8 5 1 .1 1 .00719 4 2 .893 3 1 349.24 5 1 .1 1 .00718 4 2 .95 3 1 350.15 5 1 .1 1 .02011 5 2 .092 2 1 353.45 5 1 .1 1 .020135 5 2 .192 3 1 351.05 5 1 .1 1 .020244 5 2 .291 3 1 349.73 5 1 .1 1 .020262 5 2 .41 3 1 348.35 5 1 .1 1 .02026 5 2 .517 3 1 347.65 5 1 .1 1 .020125 5 2 .619 3 1 347.27 5 1 .1 1 .019938 5 2 .65 3 1 347.55 5 1 .1 1 .020577 5 2 .681 3 1 348.25 5 1 .1 1 .020126 5 2 .717 3 1 349.5 5 1 .1 1 .020012 5 2 .903 3 1 353 5 1 .1 1 .020094 5 2 .948 3 1 354.46 5 1 .1 1 .029862 5 2 .098 2 1 357.54 5 1 .1 1 .029748 5 2 .213 3 1 354.84 5 1 .1 1 .029497 5 2 .326 3 1 353.1 5 1 .1 1 .028982 5 2 .412 3 1 350.75 5 1 .1 1 .028516 5 2 .53 3 1 349.95 5 1 .1 1 .028198 5 2 .613 3 1 349.66 5 1 .1 1 .028193 5 2 .628 3 1 350.15 5 1 .1 1 .028065 5 2 .705 3 1 351.75 5 1 .1 1 .028003 5 2 .774 3 1 354.54 5 1 .1 1 .0276 5 2 .872 3 1 355.55 5 1 .1 1 .02751 5 2 .91 3 1 356.15 5 1 .1