Randomized trial evaluates copper recovery from chalcopyrite using chloride leaching agents, suggesting effective methods for mineral processing.
Key Points
This study aims to improve the leaching of chalcopyrite by investigating the effects of sodium chloride and sodium chlorate on copper recovery.
Chalcopyrite leaching experiments conducted using sodium chloride and sodium chlorate in sulfuric acid solution.
Variables examined include temperature (25, 40, and 50 °C) and concentration of sodium chloride (0, 0.5, and 1 M) and sodium chlorate (0, 0.5, and 1 M).
Copper recovery increased from 37% to 75% as sodium chlorate concentration rose from 0 to 0.5 M.
Temperature and oxidant concentration were found to have a significant impact on copper recovery, enhancing dissolution rates.