About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2026 - In-Situ Characterization Techniques
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| Presentation Title |
Analysis of FeS2 depression by thioglycolate (C2H3NO2S) during collectorless flotation |
| Author(s) |
Héctor Iván Hernández Jímenez, Martín Reyes Pérez, Iván Alejandro Reyes Domínguez, Dayli Yamilet Tolentino Mendoza, Miroslava Mishelle Sánchez Acosta , Mizraim Uriel Flores Guerrero, Miguel Pérez Labra, Julio Cesar Juárez Tapia, Francisco Raúl Barrientos Hernández |
| On-Site Speaker (Planned) |
Héctor Iván Hernández Jímenez |
| Abstract Scope |
An environmental challenge in the mineral flotation process is avoiding the use of cyanide to depress undesirable gangue species, such as pyrite. Therefore, this research focuses on determining the influence of different pH values and quantities of the depressant sodium thioglycolate (TG) C2H3NO2S on the performance of collectorless flotation of FeS2. The results indicate that TG depresses iron disulfide at all tested pHs (4.2, 6.5, 7.2 and 10.4) and concentrations used (0.25, 0.5, 1.0 and 1.5 g/L TG) and pulp potentials around +0.48 V. However, at a more alkaline pH (10.4), TG consumption to obtain 17.3 % w/w cumulative pyrite flotation at 0.25 g/L is considerably lower than that required (1.5 g/L) at slightly acidic pH (6.5) to achieve 16.52 % w/w pyrite flotation. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Environmental Effects, Extraction and Processing |