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Solvent Extraction and Ion Exchange Volume 38, 2020 - Issue 1: Solvent Extraction Equipment Developments
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Original Articles

Simulation of Solvent Extraction Flowsheets by a Global Model Combining Physicochemical and Engineering Approaches—Application to Cobalt(II) Extraction by D2EHPA

Alexandre ChagnesUniversité de Lorraine, CNRS, GeoRessources, Nancy, FranceCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0002-4345-6812
ORCID Icon
Pages 3-13 | Published online: 26 Dec 2019
 
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ABSTRACT

The liquid-liquid extraction of cobalt(II) from an acidic chloride solution by using bis-(2-ethylhexyl) phosphoric acid (D2EHPA) diluted in kerosene has been modelled by means of a combination of physicochemical and engineering approaches. This model is able to calculate the performance of solvent extraction flowsheets (residual fraction at the outlet of the flowsheet and concentration factor between the feed solution and eluate) as a function of pH, leach solution flowrate, solvent flowrate, and stripping solution flowrate. The influence of these parameters and mixer-settler arrangements on the performance of 11 flowsheets is discussed.

Acknowledgments

The author thanks the Labex Ressources21 for its support (ANR-10-LABX-21-01).

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