Comparación de la velocidad de corrosión de acero al carbono en la lixiviación aurífera con gold max y cianuro

Abstract

With respect to the analysis process of the present investigation, the different behaviors that occur in corrosion with carbon steel submerged in Cyanurated and Gold Max solutions with different concentrations such as the Cyanide of 620 and 800 ppm and Gold Max of 500 were evaluated and 1000 ppm over a period of 60 days. What led us to perform several analyzes that allowed us to interpret the results more clearly, through which it must be compared with other authors and thus analyze the results that are most beneficial for companies to determine the corrosion rate in the specimens was used electrochemical techniques which used the Parstat MC Potentiostat in which the Open Circuit Potential, Tafel Polarization Curves and Gravimetry (weight loss) were applied, which helped identify which medium is more corrosive and what the corrosion rate is present in a certain time. Each of the samples were analyzed carefully counting on the interpretation of the replicas favored us more for the concordance of the results. All the analyzes during the 60 days to which they were subjected could be determined that in the open circuit the samples with respect to the concentration of 1000 ppm and 500 ppm in Gold Max showed that their values tend to be more negative ranging from -0 , 2897 to -0.3071, so that in cyanide they are more positive and range from -0.1224 to -0.1648 V respectively.