کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
202950 460629 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental and theoretical study on liquid–liquid equilibrium of 1-butanol + water + NaNO3 at 25 and 35 °C
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Experimental and theoretical study on liquid–liquid equilibrium of 1-butanol + water + NaNO3 at 25 and 35 °C
چکیده انگلیسی

In this work liquid–liquid equilibria (LLE) in the system containing 1-butanol–water–sodium nitrate at temperatures of 25 and 35 °C has been investigated experimentally and theoretically. The extended UNIQUAC model has previously been used for correlation of liquid–liquid equilibrium in aqueous salt systems containing alcohols. In that model the excess Gibbs energy consists of two terms, the original UNIQUAC term and Debye–Hückel term which considers the alcohol as a non-electrolyte solute. In this work, a modified extended UNIQUAC model is used by taking into account mixed solvent theories. The model consists of three terms, the original UNIQUAC term, a Pitzer–Debye–Hückel term and a Born term. The model has been found to give a satisfactory description of LLE data obtained in this work, with an average absolute deviation of less than 0.5 in calculated mass percent compared to experimental data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fluid Phase Equilibria - Volume 299, Issue 1, 15 December 2010, Pages 122–126
نویسندگان
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