Reactive extraction of phenol from aqueous solution using tri-octylamine dissolved in alkanes and alcohols

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dc.contributor.authorUslu, Hasan
dc.contributor.authorDatta, Dipaloy
dc.contributor.authorBamufleh, Hisham S.
dc.date.accessioned2024-03-13T10:35:04Z
dc.date.available2024-03-13T10:35:04Z
dc.date.issued2015
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractExtraction of phenol (0.053 mol. kg(-1)) from wastewater is performed with trioctylamine (TOA: 0.023-0.091 mol. kg-1) dissolved in four solvents (decane, octane, decan-1-ol, and octan-1-ol) at a constant temperature of 298 K. The effect of TOA concentration and type of diluent on the removal efficiency of phenol have been derived. Results show that the neutral phenol molecule is effectively extracted by TOA into the organic phase at higher concentration of TOA than lower one. The equilibrium extraction results are presented in terms of distribution coefficient (D), degree of extraction (%E) and loading ratio (Z). Maximum value of D (= 12.25) with %E = 92.45% is observed at the highest concentration of TOA (0.091 mol kg-1) with octan-1-ol. A mathematical expression for the determination of D at equilibrium is presented by applying the mass action law. This model equation is used to graphically determine the equilibrium constant (K-E) and the stoichiometric coefficient (eta) of extraction. Also, the individual equilibrium constants (K11,K21 and K-12) for the phenol TOA complexes formed are estimated from the regression of the experimental results. The highest value of complexation constant (K-E = 23) is found with TOA in octan-1-ol. Phenol molecules are extracted by TOA + decane or octane with simultaneous formation of 1:1 and 2:1 solvates, and by TOA + decan-1-ol or octan-l-ol by making 1:1 and 1:2 complexes in the organic phase. The extraction power of TOA in terms of D decreases in the order of octan-1-ol >decan-1-ol >octane >decane. 2015 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.molliq.2015.10.004
dc.identifier.endpage435en_US
dc.identifier.issn0167-7322
dc.identifier.issn1873-3166
dc.identifier.scopus2-s2.0-84943756352en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage430en_US
dc.identifier.urihttps://doi.org/10.1016/j.molliq.2015.10.004
dc.identifier.urihttps://hdl.handle.net/20.500.12662/4233
dc.identifier.volume212en_US
dc.identifier.wosWOS:000367630000050en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal Of Molecular Liquidsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectTrioctyl amineen_US
dc.subjectReactive extractionen_US
dc.subjectPhenolen_US
dc.subjectAlcoholen_US
dc.subjectAlkanesen_US
dc.titleReactive extraction of phenol from aqueous solution using tri-octylamine dissolved in alkanes and alcoholsen_US
dc.typeArticleen_US

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