Copper Electrowinning from Gold Plant Cyanide-Containing,
The electrowinning method for treating high copper cyanide solution was investigated by thermodynamics analysis and experiment. The influences of copper concentration, solution temperature, electrolysis time, current density and flow rate on copper recovery and current efficiency was studied in detail and the suitable operation parameters were chosen.electrowinning - an overview | ScienceDirect Topics,Gold in the eluate following elution of gold from resin can be electrowon in a similar fashion as electrowinning in cyanide solutions. At the cathode, gold thiosulfate is reduced to metallic gold: At the cathode, gold thiosulfate is reduced to metallic gold:Gold Chemistry Leaching Processes CHEMISTRY of the CIP,,High gold cyanide and cation concentrations, low temperatures, low anion concentrations and active carbon drive the gold cyanide onto the carbon. During elution, lack of cations (Ca2+, Mg2+, etc), high anion concentration (CN-, OH-) and high temperatures will disrupt the equilibrium and remove gold cyanide from the carbon.