Reactive Extraction of Butyric Acid from Water Using Trioctyl Amine in 1-Decanol and Green Natural Oils

• DOI: 10.1021/acs.jced.1c00122
• Publication Date: 2021-06-15T18:20:59Z
• Authors: Sourav Mukherjee; Deepika Negi; Makkitaya Swarna ...; Basudeb Munshi
• Keywords: Diluent; Soybean oil; Sunflower oil

In this work, butyric acid (BA) was extracted using trioctyl amine (TOA). Various temperature-dependent (298.15–318.15 K) process parameters were estimated and analyzed. To reduce the harmful effects of TOA to avoid detrimental toxic diluents on microorganisms, green nontoxic diluents, sunflower soybean oils, tested. physical extraction, KDdil partition coefficient, P, decreased in order 1-decanol > oil oil, whereas dimerization constant, D, showed opposite trend. chemical extraction efficiencies 85–90% for 1-decanol, 82–88% 75–86% oil. terms distribution a better diluent than followed by The high coefficients obtained oils found be encouraging their use biorefinery industries. (KDchem)/(KDphy) greater 1.0 all studied cases. best coefficient model identified. complexation reaction stoichiometry equilibrium constant differential evolution technique. complex molality, [HAmSn]org, different soybean. Different thermodynamic determined Variations acid–extractant, free acid, dimer molalities at state discussed. Analysis based enthalpy change due mass transfer, (ΔH)mass tr, indicated easiest mixing phases most difficult KE(m:n), had highest value lowest temperature (298.15 with an increase values