| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2025: In-Situ Characterization Techniques
|
| Presentation Title |
Depression of Pyrite by Trihydroxybenzene During Collectorless Flotation |
| Author(s) |
Celine Caballero Molina, Jocelyn Carbajal Peralta, Martín Reyes Pérez, Elia Guadalupe Palacios Beas, Iván Alejandro Reyes Domínguez, Julio Cesar Juárez Tapia, M Pérez-Labra, Francisco Raúl Barrientos Hernández, Felipe Legorreta García, Mizraim Uriel Flores Guerrero |
| On-Site Speaker (Planned) |
Celine Caballero Molina |
| Abstract Scope |
Pyrite is an undesirable sulfide in copper, lead and zinc mineral concentrates. However, due to its natural hydrophobic properties, it floats even during collectorless flotation. Therefore, in this work, the depressant effect of the concentration of 0.025, 0.05, 0.1 and 0.2 g/L of trihydroxybenzene or pyrogallol (PG) and the acidic and alkaline pH, during the flotation without a single collector, is investigated. Pyrite mineral phase. The results found show that FeS2 is depressed at pH 6.44, the concentration of the depressant participates significantly in the process with proportions less than 0.1 g/L, pyrite floats in smaller quantities, and there is an opposite effect with high concentrations of PG, the Iron disulfide is depressed by about 70% w/w at pH 6.44, with a pulp potential of + 400 mV. The oxidation reduction potential measured was referred to the standard hydrogen electrode (SHE). |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Extraction and Processing, Surface Modification and Coatings |