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Arsenic codeposition during the initial phases of copper nucleation and growth on stainless steel in normal electrowinning conditions

Florian Verbruggen (UGent) , Erika Fiset (UGent) , Antonin Prévoteau (UGent) , Korneel Rabaey (UGent) and Tom Hennebel (UGent)
Author
Organization
Abstract
Arsenic (As), bismuth (Bi) and antimony (Sb) are known to affect the quality of copper deposits in copper electrowinning operations. The codeposition of As was previously believed to occur only at current densities far exceeding the range of typical current densities for copper electrowinning. In this study, we investigate the copper electrodeposition on different pretreated stainless steel (SS) substrates from bleed electrolyte in galvanostatic mode at –45 mA/cm². Scanning electron microscopy (SEM) micrographs illustrate that during the initial phases of copper nucleation and growth, the current density was locally increased due to the pretreatments. It was reasoned that the codepostion of As could possibly occur in normal electrowinning conditions, but the risk can be substantially reduced by good SS substrate handling and maintenance practices.
Keywords
Chemical quality, Codeposition, Electrocrystallization, Impurities, Substrate deposit interface

Citation

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MLA
Verbruggen, Florian et al. “Arsenic Codeposition During the Initial Phases of Copper Nucleation and Growth on Stainless Steel in Normal Electrowinning Conditions.” Proceedings  of the 58th Conference of Metallurgists Hosting Copper 2019. CIM ( Canadian Institute of Mining, Metallurgy and Petroleum), 2019. Print.
APA
Verbruggen, Florian, Fiset, E., Prévoteau, A., Rabaey, K., & Hennebel, T. (2019). Arsenic codeposition during the initial phases of copper nucleation and growth on stainless steel in normal electrowinning conditions. Proceedings  of the 58th Conference of Metallurgists Hosting Copper 2019. Presented at the COM COPPER 2019, CIM ( Canadian Institute of Mining, Metallurgy and Petroleum).
Chicago author-date
Verbruggen, Florian, Erika Fiset, Antonin Prévoteau, Korneel Rabaey, and Tom Hennebel. 2019. “Arsenic Codeposition During the Initial Phases of Copper Nucleation and Growth on Stainless Steel in Normal Electrowinning Conditions.” In Proceedings  of the 58th Conference of Metallurgists Hosting Copper 2019. CIM ( Canadian Institute of Mining, Metallurgy and Petroleum).
Chicago author-date (all authors)
Verbruggen, Florian, Erika Fiset, Antonin Prévoteau, Korneel Rabaey, and Tom Hennebel. 2019. “Arsenic Codeposition During the Initial Phases of Copper Nucleation and Growth on Stainless Steel in Normal Electrowinning Conditions.” In Proceedings  of the 58th Conference of Metallurgists Hosting Copper 2019. CIM ( Canadian Institute of Mining, Metallurgy and Petroleum).
Vancouver
1.
Verbruggen F, Fiset E, Prévoteau A, Rabaey K, Hennebel T. Arsenic codeposition during the initial phases of copper nucleation and growth on stainless steel in normal electrowinning conditions. Proceedings  of the 58th Conference of Metallurgists Hosting Copper 2019. CIM ( Canadian Institute of Mining, Metallurgy and Petroleum); 2019.
IEEE
[1]
F. Verbruggen, E. Fiset, A. Prévoteau, K. Rabaey, and T. Hennebel, “Arsenic codeposition during the initial phases of copper nucleation and growth on stainless steel in normal electrowinning conditions,” in Proceedings  of the 58th Conference of Metallurgists Hosting Copper 2019, Vancouver, Canada, 2019.
@inproceedings{8625960,
  abstract     = {Arsenic (As), bismuth (Bi) and antimony (Sb) are known to affect the quality of copper deposits in copper electrowinning operations. The codeposition of As was previously believed to occur only at current densities far exceeding the range of typical current densities for copper electrowinning. In this study, we investigate the copper electrodeposition on different pretreated stainless steel (SS) substrates from bleed electrolyte in galvanostatic mode at –45 mA/cm². Scanning electron microscopy (SEM) micrographs illustrate that during the initial phases of copper nucleation and growth, the current density was locally increased due to the pretreatments. It was reasoned that the codepostion of As could possibly occur in normal electrowinning conditions, but the risk can be substantially reduced by good SS substrate handling and maintenance practices.},
  author       = {Verbruggen, Florian and Fiset, Erika and Prévoteau, Antonin and Rabaey, Korneel and Hennebel, Tom},
  booktitle    = {Proceedings  of the 58th Conference of Metallurgists Hosting Copper 2019},
  keywords     = {Chemical quality,Codeposition,Electrocrystallization,Impurities,Substrate deposit interface},
  language     = {eng},
  location     = {Vancouver, Canada},
  publisher    = {CIM ( Canadian Institute of Mining, Metallurgy and Petroleum)},
  title        = {Arsenic codeposition during the initial phases of copper nucleation and growth on stainless steel in normal electrowinning conditions},
  year         = {2019},
}