lactic acid extraction from aqueous solutions with 2-ethyl-1-hexanol by using experimental liquid-liquid equilibrium data at t=298.2k and atmospheric pressure
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abstract
liquid-liquid equilibrium data for the (water + lactic acid + 2-ethy-1-hexanol) ternary system in t=298.2k and p=1atm were determined and tie- lines related to equilibrium data has been drawn in the phases diagram . the reliability of the experimental tie-line data for this system was as confirmed by using the hand and othmer –tobias correlations. the tie-line data were correlated by means of the uniquac equation for this ternary system , the average root mean square deviation between the observed and calculated mass fractions was 0.66%. a comparison of the extracting capabilities of this solvent by 1-octanol was made with respect to distribution coefficients and separation factors bases. the results show that extraction of lactic acid from aqueous solutions by 2-ethyl-1-hexanol is possible and 2-ethyl-1-hexanol is more appropriate than the other octanol isomer.
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Journal title:
iranian chemical communicationجلد ۵، شماره Issue ۱. pp. ۱-۱۱۴، صفحات ۷-۱۵
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