About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Characterization of Minerals, Metals and Materials
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Presentation Title |
Characterization of the Dissolution of Gold and Silver Contained in a High-grade Mineral Concentrate using Thiourea |
Author(s) |
Martín Reyes Pérez, Arleth Martínez Escamilla, David Ponce Vergara, Iván Alejandro Reyes Domínguez, Mizraim Uriel Flores Guerrero, Elia Guadalupe Palacios Beas, Julio Cesar Juárez Tapia, Miguel Pérez Labra, Francisco Raúl Barrientos Hernández |
On-Site Speaker (Planned) |
Arleth Martínez Escamilla |
Abstract Scope |
For several decades, attempts have been made to replace cyanide with the reagent thiourea (TU) to reduce the impact on the environment, however, cyanide continues to be the reagent most used industrially, and this is partly due to the higher consumption of TU during leaching. Nevertheless, the use of thiourea could be justified for the leaching of gold and silver from high-grade ores. In this work, a mineral concentrate of gold and silver was characterized by XRD as well as the leaching solutions in their concentration of gold, and silver, by means of atomic absorption spectrometry. The results of leaching in a system only with TU with 0.2, 0.3 and 0.4 M. show a higher percentage of Au and Ag leaching at a lower concentration of TU (0.2 M), In just 15 minutes of leaching, 88 and 59% of gold and silver dissolution are obtained, respectively. |
Proceedings Inclusion? |
Planned: |
Keywords |
Environmental Effects, Extraction and Processing, Hydrometallurgy |