Optimizing Pb-Ag Recovery Rate in the Flotation Process of Polymetallic Ores from the Northern Andean Region of Peru through Mineralogical Characterization

• Autores: Valverde Díaz, José David, Aramburú Rojas, Vidal Sixto, Ortiz Barreto, Jorge Alberto, Tiburcio Alva, Rosa María, Aguilar Zevallos, Sharon Elisa
• Formato: artículo
• Fecha de Publicación: 2025
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español; inglés
• OAI Identifier: oai:revistasinvestigacion.unmsm.edu.pe:article/23859
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/idata/article/view/23859
• Nivel de acceso: acceso abierto
• Materia: characterization; Minitab; adit; flotation; caracterización; bocamina; flotación

A mineralogical characterization study to optimize lead-silver (Pb-Ag) recovery rate by flotation was conducted at three adits named Esmeralda, Orión, and Hércules. The variables investigated included the dosage of the reagent blend (AP-3418/AR-404), AR-242, and pH. At the Esmeralda adit, a recovery of 81.99% lead at a concentrate grade of 58.66% and 83.79% silver at a head grade of 310.64 oz/t was achieved using a dosage of 18 g/t reagent blend (AP-3418/AR-404), 5 g/t AR-242, and an optimum pH value of 11.5. At the Orión adit, a recovery of 81.71% lead at a concentrate grade of 61.6%, and 81.24% silver at a head grade of 85.39 oz/t were achieved using a dosage of 30 g/t reagent blend (AP-3418/AR-404), 5 g/t AR-242, and an optimum pH value of 10.5. Finally, at the Hércules adit, a recovery of 82.4% lead at a concentrate grade of 54.12%, and 80.88% silver at a head grade of 62.63 oz/t grade were achieved using a dosage of 30 g/t reagent blend (AP-3418/AR-404), 15 g/t AR-242, and a pH value of 11.5.