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Solvent Extraction of Copper Using TBP, D2EHPA and MIBK

  • METALLURGY OF RARE AND NOBLE METALS
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Russian Journal of Non-Ferrous Metals Aims and scope Submit manuscript

Abstract

In this research, a synergetic system of solvent extraction process was developed to recover copper from aqueous solutions with tri-n-butyl phosphate (TBP), di-2-ethyl hexyl phosphoric acid (D2EHPA) and methyl iso-butyl ketone (MIBK). The effect of significant parameters such as pH, organic phase composition, aqueous to organic phase ratio (A : O), sodium acetate (CH3COONa) concentration and presence of HCl were studied. The optimum mixing ratio of TBP: MIBK was found to to 7 : 3 for the copper extraction. In addition, the usage of HCl caused a reduction in the extraction percentage due to the instability of the TBP complex with copper in the presence of HCl. The A : O ratio of 1 : 1 resulted in a higher percentage of copper extraction. Finally, MIBK-TBP-D2EHPA-acetate system could extract more than 99% of copper under the optimum condition.

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Authors and Affiliations

  1. Department of Mining and Metallurgical Engineering, Amirkabir University of Technology, P.O. Box. 15875-4413, Tehran, Iran

    Mehdi Irannajad, Zahra Afzali & Hossein Kamran Haghighi

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  1. Mehdi Irannajad
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  2. Zahra Afzali
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  3. Hossein Kamran Haghighi
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Correspondence to Mehdi Irannajad.

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Mehdi Irannajad, Afzali, Z. & Haghighi, H.K. Solvent Extraction of Copper Using TBP, D2EHPA and MIBK. Russ. J. Non-ferrous Metals 59, 605–611 (2018). https://doi.org/10.3103/S1067821218060068

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  • DOI: https://doi.org/10.3103/S1067821218060068

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