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

Authors

hossein ghanadzadeh

department of chemical engineering, university of guilan ali ghanadzadeh

department of chemistry, faculty of science, university of guilan behnam hosseini nia

education adel eftekhari

education

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 communication

جلد ۵، شماره Issue ۱. pp. ۱-۱۱۴، صفحات ۷-۱۵

Keywords
[ ' l l e d a t a ' , ' l a c t i c a c i d ' , 2 , ' e t h y l ' , 1 , ' h e x a n o l ' , ' u n i q u a c m o d e l ' ]

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