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As, Sb, and Fe removal from industrial copper electrolyte by solvent displacement crystallisation technique

Shabani, A ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1080/00084433.2018.1549346
  3. Publisher: Taylor and Francis Ltd , 2018
  4. Abstract:
  5. The presence of impurities in the copper electrolyte increases the energy consumption of an electrorefining process and contaminates the deposited copper on cathode. The concentration of impurities increases over time making it necessary to remove them from the solution. This research introduces a fast, effective, and simple method to refine the industrial electrolyte from arsenic, iron and antimony by solvent displacement crystallisation technique. In this method, when alcohol is added to the electrolyte, the impurities precipitate from the solution as amorphous arsenato antimonite phase. Results show that Fe, Sb, and As are removed from the copper electrolyte by 75.2, 96.9 and 99.8%, respectively. Electro winning experiments show that the electric energy consumption for electrodeposition of copper is 15.5% lower when the electrolyte is free of impurities. © 2018, © 2018 Canadian Institute of Mining, Metallurgy and Petroleum
  6. Keywords:
  7. Copper electrorefining ; Energy consumption ; Isopropyl alcohol ; Copper ; Electrodes ; Energy utilization ; Industrial research ; Iron research ; Removal ; Copper electrolytes ; Current efficiency ; Electric energy consumption ; Electrorefining process ; Impurities removal ; Isopropyl alcohols ; Solution purification ; Solvent displacements ; Electrolytes
  8. Source: Canadian Metallurgical Quarterly ; 2018 ; 00084433 (ISSN)
  9. URL: https://www.tandfonline.com/doi/full/10.1080/00084433.2018.1549346