Caracterización Mineralógica Geoquímica de material de mena para recuperar oro usando flotación Denver y concentrador Knelson

Abstract

Abstract: The present researchcalled "Mineralogical - geochemical characterization of ore material to recover gold using Denver flotation and Knelson concentrator", had as objective to determine the adequate parameters to obtain a higher Au recovery, through the physical, chemical, and mineralogical characterization of the material of the mine Metalesa S.A. belonging to the mining concession Quebrada Fría, located in the province of Azuay, canton Camilo Ponce Enríquez, mining sector La Fortuna. The Denver Flotation method is considered the most successful for gold recovery, since a higher percentage of ore is obtained in relation to the percentage obtained by the other method. The flotations resulted in 88.41% in the first pass, 76.16% in the second pass, 74.11% in the third pass, 84.48% in the fourth pass and 75.28% in the fifth pass. The Knelson centrifugal concentration method yielded a result of 47.57% in the first pass on the #200 mesh and 58% in the second pass using the #35 mesh. The predominant minerals are quartz, carbonates, pyrite and arsenopyrite. Gold is associated with sulfides.