CAJ | 학술논문

用浊点法测定溴化N-乙基吡啶离子液体[Epy]Br-NaH2PO4-H2O双水相体系在298.15 K下的双节线，同时测定该双水相体系的液液相平衡数据。采用Merchuk方程、Othmer-Tobias方程和Bancroft、Setschenowtype等方程对体系的双节线数据、液液相平衡数据进行了关联，结果较理想。同时绘制了该双水相体系的相图。得到的相平衡数据为[Epy]Br-NaH2PO4-H2O双水相体系在物质萃取、分离、提纯方面的应用提供了理论依据。
용탁점법측정추화N-을기필정리자액체[Epy]Br-NaH2PO4-H2O쌍수상체계재298.15 K하적쌍절선，동시측정해쌍수상체계적액액상평형수거。채용Merchuk방정、Othmer-Tobias방정화Bancroft、Setschenowtype등방정대체계적쌍절선수거、액액상평형수거진행료관련，결과교이상。동시회제료해쌍수상체계적상도。득도적상평형수거위[Epy]Br-NaH2PO4-H2O쌍수상체계재물질췌취、분리、제순방면적응용제공료이론의거。
Binodal curves of the aqueous Brominated N-ethyl pyridine ([EPy]Br)+ Sodium dihydrogen phosphate (NaH2PO4) systems have been determined experimentally at 298.15 K. And the liquid-liquid equilibrium (LLE) data were obtained by density determination .The Merchuk equation was used to correlate the binodal data of the investigated systems. The Othmer-Tobias, Bancroft and Setschenowtype and several other empirical parameter equations were also used for the correlation of the binodal curve and the tie-line data for the investigated systems. A good accuracy was obtained with the experimental tie-line data with these models. At the same time the binodal experimental Phase diagram of the investigated systems was drawn. These data provide a theoretical basis for the extraction, separation and purification of phase composition when such data are not available.