Corrigendum to “Aqueous phase diagrams containing t-aconitic acid+(1-pentanol or +isobutyl acetate or +methyl isobutyl ketone) at 303.15 K” [Fluid Phase Equilibria 168 (2000) 217–227]

Effect of Diluents on Extraction Equilibrium of trans-Aconitic Acid

“…Also, for the present case, distribution coefficient (K D ) calculated by eq 2, and range of its values for TAA in different diluents are estimated and reported in Table 3. Barnes et al 43 have reported the distribution coefficient for the ternary system water + t-aconitic acid/methyl isobutyl ketone in the range from 0.54 to 0.57, which is nearly comparable with the present work in the case of MIBK, with little deviation due to difference in experimental temperature. Partition coefficient (P) and dimerization constant (D) values were also evaluated using eq 3 through standard curve fitting and shown in Table 3.…”

“…Regna and Bruins 34 have studied the recovery of TAA from sugar cane molasses using solvent extraction with different diluents [methyl ethyl ketone (MEK), methyl isobutyl ketone, isopropyl ether, benzene, and heptane] and obtained 96.8% assay with MEK. Barnes et al 43 have studied the phase diagrams of ternary systems, water + taconitic acid/1-pentanol/isobutyl acetate/methyl isobutyl ketone. From the experimental results, it was found that all aqueous AA systems have one liquid−liquid equilibria region, and MIK is the better solvent among those studied for the extraction of AA from its aqueous solutions.…”

“…From the experimental results, it was found that all aqueous AA systems have one liquid−liquid equilibria region, and MIK is the better solvent among those studied for the extraction of AA from its aqueous solutions. Furthermore, Barnes et al 43 have also concluded that extraction properties of AA are far of the ideal ones that makes the recovery costly and less economic process. Besides this, they have also shown that the extraction of AA with single solvents is not likely to be practical, and that the addition of extractants to the inert solvents to promote extraction is necessary.…”