On the possible use of di-(2-ethylhexyl) phosphoric acid/zinc as a recommended system for liquid-liquid extraction: the effect of impurities on kinetics

Hančil, V.; Slater, M.J.; Yu, Wenzhi

doi:10.1016/0304-386x(90)90052-4

Cited by 20 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The system has also become of interest as a test system for the characterization of extraction equipment (Sainz-Diaz et al, 1996;Slater, 1987;Hancil et al, 1990). Despite the advantages of extraction columns, mixer settler units are used in almost all commercial applications of metal extraction.…”

Section: Introductionmentioning

confidence: 99%

Mass transfer based on chemical potential theory: ZnSO₄/H₂SO₄/D2EHPA

Klocker¹,

Bart²,

Marr³

et al. 1997

AIChE Journal

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Mass transfer based on chemical potential theory: ZnSO₄/H₂SO₄/D2EHPA

Klocker¹,

Bart²,

Marr³

et al. 1997

AIChE Journal

View full text Add to dashboard Cite

show abstract

“…This solvent met all requirements but was too expensive for use in reactive extraction. Other investigations, which used heptane as solvent, were carried out by Slater, Bradford, Hancil, Prague (Hancil et al, 1990;Wachter, 1996), and Klocker et al (1997). Because of the flammability of the solvent heptane, explosion-proof apparatuses are required.…”

Section: Introductionmentioning

confidence: 99%

Extraction Equilibria of Zinc with Bis(2-ethylhexyl)phosphoric Acid

Mörters

Bart

1999

J. Chem. Eng. Data

View full text Add to dashboard Cite

Equilibria of aqueous solutions of ZnSO4 + H2SO4 with bis(2-ethylhexyl)phosphoric acid in isododecane (pentamethylheptane), a system which is proposed as an EFCE (European Federation of Chemical Engineering) test system for reactive extraction, and of aqueous solutions of ZnCl2 + HCl with bis(2-ethylhexyl)phosphoric acid in isododecane were investigated. Equilibrium concentrations and physical properties (density, viscosity, interfacial tension) are given at 298 K. The experimental data could be described well with a model that assumes the formation of one organic complex and regards the hydrogen sulfate equilibrium in the aqueous phase. The Pitzer equation was used for the aqueous phase, and the theory of Hildebrand and Scott was used to describe nonidealities in the organic phase. For quick estimations, shortcut formula for physical properties and the activities are given.

show abstract

Investigation of mass transfer on single droplets for the reactive extraction of zinc with D2EHPA

2011

View full text Add to dashboard Cite

Investigations of mass transfer behavior with the standard test system of the European Federation of Chemical Engineering (EFCE) for the reactive extraction zinc + D2EHPA (di(2‐ethylhexyl) phosphoric acid) were carried out. Experiments were performed with single droplets in a mass transfer cell on lab‐scale. In the experiments, contact time for the mass transfer between droplets and continuous phase, concentrations of zinc, D2EHPA and sulfuric acid, diameter of droplets and hole‐diameter of sieve trays were varied. These experimental results show a systematic investigation of single droplet mass transfer behavior for the standard test system of the EFCE for the reactive extraction of zinc with D2EHPA. In the mass transfer model reported here, all transient effects are considered with an instability parameter, which was determined through experiments in a mass transfer cell. The simulation results with obtained instability parameters are in a good agreement with the experimental results. © 2011 American Institute of Chemical Engineers AIChE J, 2012

show abstract

On the possible use of di-(2-ethylhexyl) phosphoric acid/zinc as a recommended system for liquid-liquid extraction: the effect of impurities on kinetics

Cited by 20 publications

References 17 publications

Mass transfer based on chemical potential theory: ZnSO₄/H₂SO₄/D2EHPA

Mass transfer based on chemical potential theory: ZnSO₄/H₂SO₄/D2EHPA

Extraction Equilibria of Zinc with Bis(2-ethylhexyl)phosphoric Acid

Investigation of mass transfer on single droplets for the reactive extraction of zinc with D2EHPA

Contact Info

Product

Resources

About

On the possible use of di-(2-ethylhexyl) phosphoric acid/zinc as a recommended system for liquid-liquid extraction: the effect of impurities on kinetics

Cited by 20 publications

References 17 publications

Mass transfer based on chemical potential theory: ZnSO4/H2SO4/D2EHPA

Mass transfer based on chemical potential theory: ZnSO4/H2SO4/D2EHPA

Extraction Equilibria of Zinc with Bis(2-ethylhexyl)phosphoric Acid

Investigation of mass transfer on single droplets for the reactive extraction of zinc with D2EHPA

Contact Info

Product

Resources

About

Mass transfer based on chemical potential theory: ZnSO₄/H₂SO₄/D2EHPA

Mass transfer based on chemical potential theory: ZnSO₄/H₂SO₄/D2EHPA