Recuperación de metales por flotación de relaves auríferos en la sociedad civil minera “goldmins” ubicada en el cantón Zaruma

Abstract

The purpose of this research is the recovery of metals from the gold tailings, from the foam flotation process in the civil mining company “Golmins”, located in the Zaruma cantón, for which a chemical characterization of the tailings was carried out, by scanning ICP multi-elements, which was carried out in the Alex Stewart (International) laboratory located in the city of Lima-Peru which showed the presence of Pb and Zn metals, physical tests, pulp density, apparent density, pH were also performed, and granulometry. For the recovery of Pb-Zn, the batch-type foam flotation process was used at the laboratory level, in which the activators (NaClO,H2O2,CuSO4), collectors (DT-404, Amyl Amine Xanthate Potassium Z-6), foaming agents (pine oil, Frother-350), activators and collectors were prepared at 1% and the foaming agents were added without dilution. Flotation tests were performed in a DENVER type cell with a rotation speed of 900 rpm, the flotation time was 5 min, and the pulp density was 30% w/w. The experimental conditions were added 6 ml of activators, 5 ml of collectors and 0.4 ml of foaming agents, the flotation test analysis was performed by wet way in the PerkinElmer AAnalysst 400 atomic absorption equipment. In the preliminary flotation tests, a greater recovery was obtained for Pb with the Ditiofostato/404 collector (DT-404) and for Zn with the Potassium Xantato Amilico Z-6 collector, so it was decided to develop a complex of collectors to from Z-6 and DT-404.