The mineral That is matter of the present work of investigation comes from the department of the Libertad, province of Otuzco, the mining company Koricolqui S.A. The study by the x- rays diffraction confi rms that the greater component of the sample is guartz in 91,74 %. In the characteristic of the sample by the method by polarizing microscope of refl ected light, the following minerals are observed: electrum, arsenopirita, marcasite, calcosita, galena, esfalerita, rutilo, goethite, tetraedita and gangues; which are like very small particles that they make diffi cult his treatment. The tests of fl otation of the initial sample are not satisfactory because the recoveries are as much for low gold and silver that is of 59,11% and 52,51% respectively. For that reason previously I am made a preconcentration with the centrifugal “Falcon” and relave of the “Falcon” just enters the fl o...

The mineral That is matter of the present work of investigation comes from the department of the Libertad, province of Otuzco, the mining company Koricolqui S.A. The study by the x- rays diffraction confi rms that the greater component of the sample is guartz in 91,74 %. In the characteristic of the sample by the method by polarizing microscope of refl ected light, the following minerals are observed: electrum, arsenopirita, marcasite, calcosita, galena, esfalerita, rutilo, goethite, tetraedita and gangues; which are like very small particles that they make diffi cult his treatment. The tests of fl otation of the initial sample are not satisfactory because the recoveries are as much for low gold and silver that is of 59,11% and 52,51% respectively. For that reason previously I am made a preconcentration with the centrifugal “Falcon” and relave of the “Falcon” just enters the fl o...

The worldwide demand for silver is increasing due to the technological development in different areas, especially for the requirements in the production of renewable energies; therefore, for the treatment of refractory minerals by conventional processes, it is necessary to study mechanisms to identify the viability of their processing and the feasibility of their recovery, ensuring profitability. Gold and silver present in the matrix of sulfide-based ores are not affordably recovered by the conventional method involving leaching in sodium cyanide solution. Therefore, it must be subjected to oxidation pretreatment or conversion of the sulfides to simple compounds that allow recovery of the precious metals. The methods of oxidation of minerals considered refractory are carried out by hydro and pyrometallurgical methods, seeking the dissolution of sulfur, iron, arsenic and other elements pr...