Interfacial kinetics of iron(III) sulfate-sulfuric acid/β-alkenyl-8-hydroxyquinoline-xylene extraction system

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Abstract

The results of a study of the interfacial kinetics for the extraction of iron(III) in sulfuric acid with β-alkenyl-8-hydroxyquinoline are presented. Use of a liquid jet recycle reactor (LJRR) to obtain the interfacial rate data permits appropriate analysis when mass transfer and interfacial reaction contribute to the overall rate. Ionic speciation in the bulk aqueous phase is modeled to obtain the concentrations of Fe3+ and H+. The postulated mechanism giving rise to the rate expression includes the adsorption of HR and the protonation of HR. It also assumes that the rate-determining step is the formation of FeR2+ in the interfacial region. The postulated model is supported by physicochemical evidence, such as interfacial tension data, and statistical evaluation of the model.

Original languageEnglish (US)
Pages (from-to)96-102
Number of pages7
JournalIndustrial and Engineering Chemistry Fundamentals
Volume25
Issue number1
DOIs
StatePublished - Jan 1 1986

ASJC Scopus subject areas

  • Engineering(all)

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