| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2025: In-Situ Characterization Techniques
|
| Presentation Title |
Behavior of Collectorless Flotation Pyrite in the Presence of Tannic Acid |
| Author(s) |
David Hernandez Monroy, Martín Reyes Pérez, Elia Guadalupe Palacios Beas, Iván Alejandro Reyes Domínguez, Julio Cesar Juárez Tapia, Miguel Pérez Labra, Francisco Raúl Barrientos Hernández, Ramiro Escudero García, Mizraim Uriel Flores Guerrero |
| On-Site Speaker (Planned) |
David Hernandez Monroy |
| Abstract Scope |
Pyrite is an iron disulfide (FeS2) associated with, base metal sulfides. During flotation and due to their hydrophobic properties, it occurs abundantly in the concentrate. In this research work we seek to alter the surface properties of this species to hydrophilic ones by adding tannic acid (TA), evaluating the collectorless flotation of a single phase of FeS2, using different pH values 6.0, 7.0, 9.0 and proportions. of AT 50, 100, 200, 400, 600 and 800 mg/L. The results show that during flotation in the absence of AT, the pyrite presents hydrophobic properties, obtaining a concentrate with around 35% w/w, the addition of AT and for all the concentrations evaluated depresses the FeS2, when there are 800 mg/L of AT in the pulp, the concentrate obtained contains 12.7% w/w, while with 50 mg/L of AT there is 15.8% w/w, the tests were carried out at oxidizing potentials of +350 mV. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Extraction and Processing, Characterization, Hydrometallurgy |