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PyritePyrite isDepression anPyrite undesirableTrihydroxybenzene sulfide inCollectorless copperCopper, leadFlotation and zinc mineralMineral concentrates. However, due to its natural hydrophobicHydrophobic properties, it floats even during collectorlessCollectorless flotationFlotation. Therefore, in this work, the depressant effect of the concentration of 0.025, 0.05 and 0.2 g/L of trihydroxybenzeneTrihydroxybenzene or pyrogallolPyrogallol (PG) and the acidic and alkalineAlkaline pH, during single-phase pyritePyrite ore collectorlessCollectorless flotationFlotation is investigated. The results found show that FeS2 is depressed at pH 6.0, the concentration of the depressant participates significantly in the process with proportions less than 0.2 g/L, pyritePyrite floats in smaller quantities, and there is an opposite effect with high concentrations of PG, the Iron disulfide is depressed by about 17% w/w at pH 6.0, with a pulp potentialPulp potential of +317 mV. The oxidation–reduction potential measured was referred to as the standard hydrogenHydrogen electrode (SHE).

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Depression of Pyrite by Trihydroxybenzene During Collectorless Flotation

  • 会议论文

  • 发表日期：

    2025年

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  • Celine Caballero Molina,
  • Jocelyn Carbajal,
  • Martín Reyes Pérez,
  • Elia Guadalupe Palacios Beas,
  • Iván A. Reyes Domínguez,
  • Julio Cesar Juárez Tapia,
  • Miguel Pérez Labra,
  • Francisco Raúl Barrientos Hernández,
  • Felipe Legorreta García,
  • Mizraim U. Flores Guerrero

摘要

PyritePyrite isDepression anPyrite undesirableTrihydroxybenzene sulfide inCollectorless copperCopper, leadFlotation and zinc mineralMineral concentrates. However, due to its natural hydrophobicHydrophobic properties, it floats even during collectorlessCollectorless flotationFlotation. Therefore, in this work, the depressant effect of the concentration of 0.025, 0.05 and 0.2 g/L of trihydroxybenzeneTrihydroxybenzene or pyrogallolPyrogallol (PG) and the acidic and alkalineAlkaline pH, during single-phase pyritePyrite ore collectorlessCollectorless flotationFlotation is investigated. The results found show that FeS2 is depressed at pH 6.0, the concentration of the depressant participates significantly in the process with proportions less than 0.2 g/L, pyritePyrite floats in smaller quantities, and there is an opposite effect with high concentrations of PG, the Iron disulfide is depressed by about 17% w/w at pH 6.0, with a pulp potentialPulp potential of +317 mV. The oxidation–reduction potential measured was referred to as the standard hydrogenHydrogen electrode (SHE).