Abstract
t. There was for the first time determined the possibility of using the natural mineral pyrite as a sulfidizer. The mechanism of sulfur transfer from the pyrite mineral to oxidized minerals with the formation of easily floatable copper sulfides was studied. To supplement the sulfur content in refractory oxidized copper ore, pyrite (FeS2) was used. It was introduced into the pulp based on the reaction of formation of easily floatable copper sulfides. In order to achieve the maximum values of the copper recovery into the concentrate and to determine the optimal parameters of the current density, the concentration of sulfuric acid, the sulfidizing agent, pyrite, the electrolyte temperature, the duration of the electrolysis, there was studied electrochemical sulfiding of the Zhezkazgan oxidized copper ore according to the method of mathematical planning of the experiment.