Vapor鈥揕iquid Equilibrium Measurements of NH3 + H2O + Ionic Liquid ([Dmim]Cl, [Dmim]BF4, and [Dmim]DMP) Systems

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• 作者：Weijia Huang ; Guangming Sun ; Danxing Zheng ; Li Dong ; Xianghong Wu ; Juan Chen
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2013
• 出版时间：May 9, 2013
• 年：2013
• 卷：58
• 期：5
• 页码：1354-1360
• 全文大小：281K
• 年卷期：v.58,no.5(May 9, 2013)
• ISSN：1520-5134

文摘

The isothermal synthesis method is used to investigate the vapor鈥搇iquid equilibrium (VLE) data of the ammonia (NH₃) + water (H₂O) + ionic liquid (IL) ternary system at the temperature of 313.15 K and the pressure of (0 to 0.6) MPa. The 3 ILs are 1,3-dimethylimidazolium tetrafluorobrorate ([Dmim]BF₄), 1,3-dimethylimidazolium chloride ([Dmim]Cl) and 1,3-dimethylimidazolium dimethyl phosphate ([Dmim]DMP), respectively, and the ratio of mass (r_m) of IL/H₂O is 3/4. In addition, the densities of the three binary systems, namely, the H₂O + [Dmim]DMP (r_m = 1/2, 3/4) at 293.15 K, 313.15 K, and 333.15 K, the H₂O + [Dmim]Cl (r_m = 3/4) and H₂O + [Dmim]DMP (r_m = 3/4) at 313.15 K have been measured at atmospheric pressure, respectively. The VLE of the NH₃ + H₂O + [Dmim]DMP ternary system (r_m = 1/2, 3/4) are measured at 293.15 K, 313.15 K, and 333.15 K with the pressures ranging from (0 to 0.6) MPa. Finally, an analytical polynomial equation is used to fit the experimental data.