Solvent Extraction and Electro-Wining from Copper Leaching Product of Mawat Sulfide Ore Using Taguchi Method

Authors

  • Hamed M. Jassim Department of Natural Resources Engineering & Management, School of Science and Engineering, University of Kurdistan Hewler, Kurdistan Region - F.R. Iraq http://orcid.org/0000-0002-7507-8035
  • Hijran Z.A. Toma Department of Production Engineering & Metallurgy, University of Technology, Baghdad, F.R. Iraq
  • Layla S. Oudah Department of Production Engineering & Metallurgy, University of Technology, Baghdad, F.R. Iraq

DOI:

https://doi.org/10.25079/ukhjse.v1n1y2017.pp53-59

Keywords:

Copper Leaching, Electro-winning, Mawat sulfide ore, Solvent extraction, Taguchi method

Abstract

This study includes solvent extraction and electrowinning of copper from leaching process. The Taguchi method was used to determine the optimum conditions for solvent extraction process of copper ore in sulfuric acid solution. The experimental parameters of solvent extraction were: Extractant mass of sodium diethyldithiocarbamate (SDDT), agitation time, and pH value. While, the electrowinning parameters were constant at 25°C temperature, reaction voltage of 2 V, 200 A/dm2 current density, and 2.5 cm distance between electrodes. The following optimum solvent extraction parameters levels were found: Extractant mass of SDDT 100 mg, agitation time 30 min, pH = 8. Under these conditions, the extraction ratio was 97.15%. It was observed that the extraction ratio increases with the increase of SDDT mass. A contacting time of 30 min is considered for ensuring state of equilibrium, and the extraction ratio decreases in a more alkaline medium (pH >8) when the cation of hydrolysis at the aqueous phase was sufficiently disturbed from heating, allowing elements to return to the aqueous phase, thereby decreasing the extraction ratio. After electrowinning is carried out, the results for the experiments were taken to quantitative analysis using the X-ray fluorescence  pectrophotometer, scanning electron microscopy, and X-ray diffraction patterns which showed the presence of pure copper at a purity level of 100%.

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Author Biographies

  • Hamed M. Jassim, Department of Natural Resources Engineering & Management, School of Science and Engineering, University of Kurdistan Hewler, Kurdistan Region - F.R. Iraq

    Dr. Hamed M. Jassim is a Full Professor at the Faculty of Engineering, Department of Geotechnical Engineering, Koya University since 16.4.2006. Prior to that, Dr. Jassim held the positions of assistant dean of the college of engineering/ Baghdad University between 1995 and 2002, assistant dean of Al-Khawarizmi Eng. College/ Baghdad University between 2002 and 2003 then acting dean of the same college between April 2003 and June 2003. At Koya University, he was appointed as the head of school of Petroleum & Chemical Engineering between 2010 and 2013. He has a G.C.E. from Dudley Technical College in England 1973, a B.Sc. in Mining Eng. from Leeds University-England in 1976 and M.Sc. from Leeds Univ. in 1977. He completed his Ph.D. in Mining Eng. ( Tunneling Eng. ) from Leoben School of Mines in Austria in 1990. He published two text books and over 18 research papers and technical studies both nationally and internationally. He is a member of the international ALUMNI University.

  • Hijran Z.A. Toma, Department of Production Engineering & Metallurgy, University of Technology, Baghdad, F.R. Iraq

    Dr. Hijran Zainalabidin Toama graduated from University of Baghdad, College of Engineering in 1978 with B.Sc. degree in Petroleum and Mineral Engineering. He joined State Company for Phosphate in 1978 and he was working as the head of many directorates in the company and nominated as an expert in 2005. He got his M.Sc. in extractive metallurgy engineering and Ph.D. in metallurgical engineering from the University of Technology in 1999 and 2007, respectively. He joined University of Technology/Department of Production Engineering and Metallurgy in 2007, as lecturer, and he was the head of Mining and Extractive Metallurgy Engineering branch from March 2013 until April 2017.

  • Layla S. Oudah, Department of Production Engineering & Metallurgy, University of Technology, Baghdad, F.R. Iraq

    Mrs. Layla Sabah Oudah graduated from University  of Technology in 2011 with B.Sc. degree in metallurgy engineering, and she got her M.Sc. in extractive metallurgy engineering from University of Technology in 2017.

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Published

2017-12-23

Issue

Vol. 1 No. 1 (2017): ISSUE ONE

Section

Research Articles

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How to Cite

Solvent Extraction and Electro-Wining from Copper Leaching Product of Mawat Sulfide Ore Using Taguchi Method. (2017). UKH Journal of Science and Engineering, 1(1), 53-59. https://doi.org/10.25079/ukhjse.v1n1y2017.pp53-59

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