鹽效應在乙酸正丁酯－正丁醇－水三成份混合溶劑液液平衡系統之影響

Influences of salt effects on n-Butyl acetate－n-Butanol－Water Ternary mixed solvent Liquid-Liquid Equilibria System

葉柏誼(bo-yi.ye)

指導教授 ： 段葉芳

國立臺北科技大學/工程學院/化學工程所/碩士(2006年)

摘要

本研究主要目的在於探討鹽效應在乙酸正丁酯－正丁醇－水三成份系統之液液平衡。在實驗方面，在 298.15K 下，以乙酸正丁酯－正丁醇－水系統，分別在飽和氯化銨與溴化銨濃度下，進行液液平衡實驗。由實驗結果可以觀察到液液平衡相圖中兩相之不互溶區明顯地變大。 在模擬實驗方面，本研究利用TTK-Wilson活性係數模式作理論模擬。可發現以TTK-Wilson 活性係數模式作理論模擬結果與實驗的結果相符合，其平均偏差小於0.6％。

關鍵字

氯化銨 ； 溴化銨 ； 液液平衡 ； TTK-Wilson

並列摘要

The objective of this study is to investigate salt effects on liquid-liquid equilibria (LLE) of ternary mixed solvent systems. In the experimental part, the Liquid-Liquid Equilibria (LLE) has been achieved under the condition of which containing saturate NH4Cl or NH4Br at 298.15K. It was observed that the salt effect enlarges the area of the two-phase region in the LLE phase diagram.
In the experimental part of simulation, this study is to use a TTK-Wilson activity coefficient model.It was found that Liquid-Liquid Equilibria (LLE) experiments were in good agreement as the result of simulation using TTK-Wilson activity coefficient model.

並列關鍵字

Ammonium chloride ； Ammonium bromide, ； liquid-liquid equilibria (LLE) ； TTK-Wilson

參考文獻

科技大學化工系碩士學位論文,張薰文,2004.

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6. Long, F. A., and Mcdevit, M. F., “ Activity Coefficients of Nonelectrolyte

Solutions in Aqueous Salt Solutions,“ Chem. Rev., 51, 119 (1952)