Effect of Aqueous Ferrous Ion on Collectorless Flotation of Pyrite Conference Paper uri icon

abstract

  • The presence of pyritePyrite in the mineral concentrates of the base metals obtained during flotationFlotation is a common problem; the depressionDepression of these impurities continues under investigation. This paper analyzes the surface state by FTIRFourier transform infra-red (FTIR) of pyritePyrite obtained during collectorlessCollectorlessflotationFlotation using several concentrations of ferrous sulfate (FS) as a depressantDepressant. The results found show that the presence of 300 mg/L Fe2 at pH 6 depresses the pyritePyrite, obtaining a 25%25 (w/w) cumulative flotationFlotation, at pulp potentials of  300 mV, while in the absence of FS it is 89.9%25 (w/w). for all the concentrations analyzed (100, 160, 240 and 300 mg/L) the pyritePyriteflotationFlotation is less than 50%25, the pyritePyritesurfaces characterized by FTIRFourier transform infra-red (FTIR) indicate the presence of different species of iron oxides such as akaganeite, lepidocrocite, schwertmanite as well as the presence free sulfate ion responsible for the pyritePyritedepressionDepression. © The Minerals, Metals & Materials Society 2024.

publication date

  • 2024-01-01