| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2025: In-Situ Characterization Techniques
|
| Presentation Title |
Determination of the Influence of Thioglycollate on the Flotation of Galena (PbS) |
| Author(s) |
Arely Hernandez Luna, Martín Reyes Pérez, Elia Guadalupe Palacios Beas, Iván A. Reyes Domínguez, Julio Cesar Juárez Tapia, Miguel Pérez Labra, Francisco Raúl Barrientos Hernández, Víctor Esteban Reyes Cruz, Mizraim U. Flores Guerrero |
| On-Site Speaker (Planned) |
Arely Hernandez Luna |
| Abstract Scope |
Lead sulfide PbS or galena is associated with multiple species; to efficiently separate it from worthless minerals, for example pyrite, depressant reagents such as thioglycolate TG are used. In this work, the effect of the amount of TG and pH on the flotation efficiency of a single mineral phase is explored, to determine whether TG activates or depresses PbS. The results found show that TG improves flotation compared to tests with only foaming agent and with 0.1 g/L xanthate without TG. This reagent activates the mineral surface and at pH 11 with 0.25 g/L of TG and 0.1 xanthate, 95% w/w is obtained, while for the test without TG there is only 70% w/w of PbS flotation. pH values 7.7 and 10 similarly improve efficiency, obtaining values of 90% w/w in the presence of 0.25 and 0.75 g/L of TG respectively and with pulp potentials of + 26 mV. |
| Proceedings Inclusion? |
Planned: |