Extraction of Gold (III) Ions from Aqueous Solutions Using Polyamine Type Surfactant Liquid Membrane

Authors

  • Ali Kargari,

    1. Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), No. 424 Hafez Avenue- Tehran 15875-4413 - Iran
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  • Tahereh Kaghazchi,

    Corresponding author
    1. Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), No. 424 Hafez Avenue- Tehran 15875-4413 - Iran
    • Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), No. 424 Hafez Avenue- Tehran 15875-4413 - Iran
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  • Mansoureh Soleimani

    1. Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), No. 424 Hafez Avenue- Tehran 15875-4413 - Iran
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Abstract

Experimental results of extraction of gold (III) ions from aqueous solutions by a polyamine type liquid membrane are presented. The effects of various parameters such as concentration of gold ions in the external phase, concentration of carrier, concentration of the internal phase reagents, pH of the external phase and the speed of agitation on the extraction rate were studied. The results show that by proper selection of the extraction conditions, nearly all of the Au (III) ions present in a highly concentrated feed solution was extracted within a few minutes.

Abstract

On présente les résultats expérimentaux de l'extraction d'ions aurifères (III) à partir de solutions aqueuses par une membrane liquide de type polyamine. Les effets de différents paramètres tels que la concentration d'ions aurifères dans la phase externe, la concentration du courant porteur, la concentration des réactifs de la phase interne, le pH de la phase externe et la vitesse d'agitation sur la vitesse d'extraction, ont été étudiés. Les résultats montrent que par une sélection appropriée des conditions d'extraction, presque tous les ions Au (III) présents dans une solution d'alimentation hautement concentrée ont été extraits en quelques minutes.

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