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Physical Chemistry Research، جلد ۱۰، شماره ۳، صفحات ۴۱۱-۴۲۰
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عنوان انگلیسی Liquid-liquid Equilibrium Data of Aqueous Mixtures of Butyric Acid with 2-Methylcyclohexanol at Different Temperatures and 102.1 kPa
چکیده انگلیسی مقاله In current study, ternary phase equilibria of (water + n-butyric acid + 2-methylcyclohexanol) were considered. Experimental tie-line data were measured at T = 298.2, 308.5 and 318.2 K and 102.1 kPa. Type I LLE behavior was observed for the studied mixtures. Karl-Fischer and acid-base titrations were applied to analyze separated phases. The Hand and Othmer-Tobias equations were used to test the validity of obtained tie-line data. Regression coefficients of both equations were bigger than 0.99. Calculated separation factors (14.6 to 32.6) and distribution coefficients (1.5 to 4.8) proved that the studied solvent is very efficient for extraction of n-butyric acid from water. Thermodynamic modeling was performed by NRTL equation and root mean square deviations (3.54 to 4.11 %) were calculated to investigate the quality of modeling.
کلیدواژه‌های انگلیسی مقاله Liquid-liquid equilibria,n-Butyric acid,Hand,Othmer-Tobias,NRTL model
نویسندگان مقاله Rasoul Shemshadi |
Department of Chemical Engineering, Faculty of Chamran, Guilan Branch, Technical and Vocational University (TVU), Tehran, Iran

نشانی اینترنتی https://www.physchemres.org/article_144938_139ed97fd112cca7def5ed07e199a2a6.pdf
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