About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Characterization of Minerals, Metals and Materials 2026 - In-Situ Characterization Techniques
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| Presentation Title |
FTIR characterization of pyrite depression during collectorless flotation in the presence of potassium sorbate. |
| Author(s) |
Diego García Hernández, Fernanda Butrón Bonilla, Iván. Alejandro Reyes Domínguez, Dayli Yamilet Tolentino Mendoza, Mishelle Miroslava Sánchez Acosta, Mizraim Uriel Flores Guerrero, Miguel Pérez Labra, Francisco Raúl Barrientos Hernández, Martín Reyes Pérez |
| On-Site Speaker (Planned) |
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| Abstract Scope |
Iron disulfide FeS2 is an abundant mineral found associated with valuable minerals Cu - Pb and Zn and its separation during flotation is a crucial process that partly dictates the success of the operation. Pyrite is hydrophobic therefore its flotation properties must be subtracted, in the industry large quantities of cyanide are used to depress the pyrite surface, this being a toxic reagent and polluting the environment. Therefore, in this research work, a green reagent friendly to nature such as potassium sorbate (Sbt) with formula C6H7O2K was evaluated during collectorless flotation of pyrite. It was found that 1 g of Sbt achieves the depression of 400 mesh pyrite particles at neutral pH, floating 40%. While 200 mesh FeS2 requires 4 g of Sbt to depress its surface, floating only 28% after 10 min. IR spectra of pyrite show the absorption of the depressant at the last molecular layer of pyrite. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Environmental Effects, Characterization, Extraction and Processing |