ABSTRACT This study aimes to investigate the extraction of a carboxylic acid and a hydroxycarboxylic acid from aqueous solutions using a high-molecular-weight aliphatic amine, tridodecylamine (TDA) dissolved in three different diluents (isobutyl methyl ketone, isopropyl methyl ketone, 4-heptanone) each. Formic and tartaric acids were used as model acids in this study. The experiments were carried out at 298.15 K. Comparison of the results were made through the distribution coefficient, loading factor, separation factor, and the percentage of extraction yield. The results demonstrated that combination of TDA and isopropyl methyl ketone had thegreatest synergistic effects on separation of tartaric acid, which reveals that this solvent system is more appropriate to hydrocarboxylic acid than to carboxylic acid.    

Separation of carboxylic and hydroxycarboxylic acids from aqueous solutions by reactive extraction

239th National Meeting (2010)

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