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

Chun Kuo Lee; Lawrence L. Tavlarldes

doi:10.1021/i100021a014

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

Chun Kuo Lee, Lawrence L. Tavlarldes

Department of Biomedical & Chemical Engineering

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

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 language	English (US)
Pages (from-to)	96-102
Number of pages	7
Journal	Industrial and Engineering Chemistry Fundamentals
Volume	25
Issue number	1
DOIs	https://doi.org/10.1021/i100021a014
State	Published - 1986

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General Engineering

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

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.",

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year = "1986",

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AU - Lee, Chun Kuo

AU - Tavlarldes, Lawrence L.

PY - 1986

Y1 - 1986

N2 - 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.

AB - 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.

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

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