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dc.contributor.authorLeopold, Agnieszka Ana
dc.contributor.authorColl Ausió, Mª Teresa
dc.contributor.authorFortuny Sanromá, Agustín
dc.contributor.authorRathore, Narendra Singh
dc.contributor.authorSastre Requena, Ana María
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.identifier.citationLeopold, A.A. [et al.]. Mathematical modeling of cadmium(II) solvent extraction from neutral and acidic chloride media using Cyanex. "Journal of hazardous materials", 29 Juliol 2010, vol. 182, núm. 1-3, p. 903-911.
dc.description.abstractThis paper describes experimental work and the mathematical modeling of solvent extraction of cadmium( II) from neutral and acidic aqueous chloride media with a Cyanex 923 extractant in Exxol D-100. Solvent extraction experiments were carried out to analyze the influence of variations in the composition of the aqueous and organic phases on the efficiency of cadmium(II) extraction. In neutral and acidic chloride conditions, the extraction of cadmium(II) by the organophosphorous extractant Cyanex 923 (L) is based on the solvation mechanism of neutral HnCdCl(2+n) species and the formation of HnCdCl(2+n)Lq complexes in the organic phase, where n=0, 1, 2 and q = 1, 2. The mathematical model of cadmium(II) extraction was derived from the mass balances and chemical equilibria involved in the separation system. The model was computed with the Matlab software. The equilibrium parameters for metal extraction, i.e. the stability constants of the aqueous Cd–Cl complexes, the formation constants of the acidic Cd–Cl species and the metal equilibrium extraction constants, were proposed. The optimized constants were appropriate, as there was good agreement when the model was fitted to the experimental data for each of the experiments.
dc.format.extent9 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Enginyeria química::Química orgànica
dc.subject.otherCyanex 923
dc.subject.otherSolvent extraction
dc.subject.otherMathematical modeling
dc.titleMathematical modeling of cadmium(II) solvent extraction from neutral and acidic chloride media using Cyanex
dc.subject.lemacExtracció (Química)
dc.contributor.groupUniversitat Politècnica de Catalunya. SETRI - Grup de Tècniques de Separació i Tractament de Residus Industrials
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (published version)
local.citation.authorLeopold, A.A.; Coll, M.T.; Fortuny, A.; Rathore, N.; Sastre, A.
local.citation.publicationNameJournal of hazardous materials

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