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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Materials Processing Fundamentals
Presentation Title Voltammetric Investigations of the Dissolution of Copper in Acidic Cupric Chloride Solutions Containing Additional Dissolved Cuprous Ions
Author(s) Nadine Koerbler, Eva Gerold, Thomas Krivec, Jolanta Klocek, Helmut Antrekowitsch
On-Site Speaker (Planned) Nadine Koerbler
Abstract Scope The impact of additional cuprous ions on the dissolution of pure copper in acidic cupric chloride solutions and the behavior of individual copper chloride complexes were investigated by detecting characteristic current potential curves using a rotating disk electrode setup. Due to the variation of different parameters like temperature, rotation speed and concentration of the reactive species the influence on the conversion rate can be interpreted. This work deals with the application of voltammetry in a three-electrode setup. In this system, a pure copper sample was installed as a working electrode and contacted with defined acidic solutions containing certain copper ions. Elevated temperatures and rotation speeds amplify the reactions between electrolyte and metal. Higher concentrations cause pronounced concentration gradients, which affect the diffusion of reactive ions. Further studies on the formation of copper chloride complexes should provide more information on optimized solutions.
Proceedings Inclusion? Planned:
Keywords Electrometallurgy, Hydrometallurgy, Copper / Nickel / Cobalt


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Voltammetric Investigations of the Dissolution of Copper in Acidic Cupric Chloride Solutions Containing Additional Dissolved Cuprous Ions

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