About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2026 - In-Situ Characterization Techniques
|
| Presentation Title |
The depressing role of carboxymethyl cellulose (CMC) in pyrite flotation |
| Author(s) |
Jordan Alberto Márquez Rojas, Alondra Yatzareth Méndoza Olivares, Iván Alejandro Reyes Domínguez, Dayli Yamilet Tolentino Mendoza, Miroslava Mishelle Sánchez Acosta, Mizraim Uriel Flores Guerrero, Miguel perez labra, Francisco Raúl Barrientos Hernández, Martín Reyes Pérez |
| On-Site Speaker (Planned) |
Jordan Alberto Márquez Rojas |
| Abstract Scope |
The traditional flotation process uses 1:3 mixtures of sodium cyanide and zinc sulfate as depressants for valueless minerals such as iron disulfide to alter the surface from hydrophobic to hydrophilic. Organic agents are currently being explored to replace the effect of NaCN, a toxic and polluting reagent. This research evaluates the use of carboxymethylcellulose (CMS) in quantities of 0.05, 0.1, 0.2, 0.3, and 0.6 g/L at pH 6.5 and 9 to achieve depressing of pyrite mineral during collector-less flotation. The results indicate that FeS2 is depressed by approximately 80%. The flotation of pyrite in the presence of 0.05 g/L of CMC at pH 9.0 and in a system without collector with only frother is 21.34 % w/w, while when the pH is 6.0, 0.2 g/L of CMC is needed to reduce the separation of pyrite during flotation, obtaining 19.6% w/w after 10 minutes of process. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Environmental Effects, Extraction and Processing, Characterization |