Vapor–Liquid Equilibrium Measurements of NH3 + H2O + Ionic Liquid ([Dmim]Cl, [Dmim]BF4, and [Dmim]DMP) Systems
Vapor–Liquid Equilibrium Measurements of NH3 + H2O + Ionic Liquid ([Dmim]Cl, [Dmim]BF4, and [Dmim]DMP) Systems
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DOI：
10.1021/je400109a
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发表时间：
2013-04
影响因子：
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通讯作者：
Weijia Huang;Guangming Sun;D. Zheng;L. Dong;Xianghong Wu;Juan Chen
中科院分区：
文献类型：
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作者：
Weijia Huang;Guangming Sun;D. Zheng;L. Dong;Xianghong Wu;Juan Chen
采用等温合成法研究了氨（NH3）+水（H2O）+离子液体（IL）三元体系在温度313.15 K、压力（0 ~ 0.6）MPa下的汽液平衡数据。3种离子液体分别为四氟硼酸1，3-二甲基咪唑鎓（[Dmim] BF 4）、氯化1，3-二甲基咪唑鎓（[Dmim]Cl）和磷酸1，3-二甲基咪唑鎓（[Dmim] Cl），离子液体与水的质量比（rm）为3/4。此外，还测量了常压下H_2O + [Dmim] Cl（rm = 3/4）和H_2O +[Dmim]Cl（rm = 3/4）三个二元体系的密度，分别为293.15K、313.15K和333.15K。测定了NH_3 + H_2O + [Dmim]三元体系（rm = 1/2，3/4）在293.15K，313.15K和333.15K下的汽液平衡，压力范围为0 ~ 0.6MPa。最后用解析多项式方程拟合实验数据。
The isothermal synthesis method is used to investigate the vapor–liquid 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 (rm) of IL/H2O is 3/4. In addition, the densities of the three binary systems, namely, the H2O + [Dmim]DMP (rm = 1/2, 3/4) at 293.15 K, 313.15 K, and 333.15 K, the H2O + [Dmim]Cl (rm = 3/4) and H2O + [Dmim]DMP (rm = 3/4) at 313.15 K have been measured at atmospheric pressure, respectively. The VLE of the NH3 + H2O + [Dmim]DMP ternary system (rm = 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.