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How electrowinning cobalt from chloride solutions? Electrowinning of cobalt from chloride solutions has several advantages over sulphate, like higher electrolyte conductivity, lower electrolyte viscosity, lower anodic and cathodic overpotentials, and more uniform and ductile metal deposition at high current densities and higher activity of the cobalt ion, resulting in less sensitivity towards fluctuations in electrolyte pH. Higher solubility also makes it possible to operate with more concentrated solutions. However, more advanced

A Cell Design for Nickel Electrowinning from Sulfate Electrolyte The cell for nickel electrowinning from sulfate electrolytes is usually a divided rectangular tank made from concrete and lined with an acid‐resistant material to contain the electrolyte. The cathodes and anodes are located parallel to each other at a fixed interelectrode pitch of typically 100 mm and immersed in the electrolyte. Cathodes may be in the form of nickel starter sheets that are typically plated on titanium cathode blanks up to a thickness of 1 mm in a

How does Current Density Effects in Electrowinning Process? In addition to the electrolyte composition, the bath temperature, pH and current density are the main operating parameters in electrowinning and electrorefining of nickel that affect the stress in a nickel deposit in different ways. In the electrowinning process, the current density is an important factor that determines the metal production rate and has a strong influence on the quality of the deposit. The current density typically used for nickel electrowinning from s

Sulfate and Chloride Electrolytes for Nickel Electrowinning Electrowinning of nickel is usually carried out from three types of electrolytes: typically sulfate, chloride, and sulfate-chloride mixtures, with the operating parameters and the cell configuration closely related to the nature of the electrolyte used. Typically, for sulfate electrolytes, electrowinning is conducted in a range of pH 2 to 4, as lower pH values give excessive hydrogen evolution at the cathode surface, while higher pH values lead generally to the for