Application of Grinding, Pyrometallurgical Pretreatment, and Silver Leaching of Mineral Tailings from the State of Morelos, Mexico

• Published in: Characterization of Minerals, Metals, and Materials 2022 pp. 207 - 218
• Main Authors: Soto, Jesús Iván Martínez, Teja-Ruiz, Aislinn M., Reyes-Perez, Martin, Pérez-Labra, Miguel, Reyes-Cruz, Víctor Esteban, Cobos-Murcía, José A., Urbano-Reyes, Gustavo, Juárez-Tapia, Julio Cesar
• Format: Book Chapter
• Language: English
• Published: Cham Springer International Publishing
• Series: The Minerals, Metals & Materials Series
• Subjects: Grinding; Leaching; Roasting pretreatment
• ISBN: 9783030923723; 303092372X
• ISSN: 2367-1181; 2367-1696
• DOI: 10.1007/978-3-030-92373-0_19

The study of the benefit of noble metals is of utmost importance at an industrial level, when dealing with a mining-metallurgical wasteWaste the complexity of the process increases due to factors such as the characteristic refractoriness of these wastesWaste. As an alternative to try to achieve the highest silver dissolutions, a chemical granulometric analysis was performed where it was determined that 40.61% of silver contained in the tailings sample is below 325 mesh (44 μm). Also, grindingGrinding tests were carried out in periods of 20–40 min to determine the operating parameter in the leachingLeaching. The leachingLeaching experiments were carried out in times of 24, 48, and 72 h, to samples of the whole tail, with grindingGrinding of 40 min and with pyrometallurgical pretreatment (roasting), using a constant concentration of cyanide of 0.1% and calcium oxide at the 0.2% reaching a maximum silver dissolution of 69.19%.