Recovery of copper powder from copper bleed electrolyte of an Indian copper smelter by electrolysis

Effect of electrolyte characteristics on electrowinning of copper powder

“…The deposited copper powders at different temperatures are highly pure, as indicated by EDX analysis, with a dendritic structure as always obtained from electrowinning technique [11,18,19]. The particle size of the produced powders is finer with increase of the electrolyte temperature, as shown in Fig.…”

“…Electrolyte characteristics are considered some of the main important parameters affecting the production process of metals or metal powders by both electrowinning and electrorefining techniques [1][2][3][4][5][6][7][8][9][10][11][12][13]. To date, the literature does not include any publications that directly report the effect of these conditions on electrowinning process of copper powder production and also on the quality of the produced powders.…”

Recovery of copper and water from copper-electroplating wastewater by the combination process of electrolysis and electrodialysis

“…Over thirty kinds heavy metals can be recovered from aqueous solutions by EL, including many precious metals and heavy metals [5]. There are many researches about copper recovery by EL [6][7][8][9]. Meanwhile the ED for acidic aqueous solution that contains copper ions has been studied by several workers [10][11][12].…”

Copper recovery and cyanide oxidation by electrowinning from a spent copper-cyanide electroplating electrolyte

“…However, when copper concentration drops below 15 g/L the cathodes may require resmelting or re-refining. Agrawal et al [17] used the copper bleed solution generated from an Indian copper smelter to produce pure copper powder by electrolysis. Copper recoveries of 95% were achieved at a current density of 700 A/m 2 , with current efficiencies of 88% and energy consumption in the range of 2.3-3.8 kWh/kg.…”