Study of adsorption of sodium isopropyl xanthate on galena
dc.contributor | Moreno-Medrano, E.D., Department of Chemical Engineering, Universidad de Guadalajara, Gdl., 44430, Mexico; Casillas, N., Department of Chemistry, Universidad de Guadalajara, Gdl., 44430, Mexico; Cruz, R., Institute of Metallurgy, UASLP, SLP., 08901, 78210, Mexico; Lara-Castro, R.H., Department of Chemistry, UAM-I, D.F. 09340, Mexico; Larios-Durán, R., Department of Chemical Engineering, Universidad de Guadalajara, Gdl., 44430, Mexico; Bárcena-Soto, M., Department of Chemistry, Universidad de Guadalajara, Gdl., 44430, Mexico | |
dc.creator | Moreno-Medrano, E.D. | |
dc.creator | Casillas, N. | |
dc.creator | Cruz, R. | |
dc.creator | Lara-Castro, R.H. | |
dc.creator | Larios-Duran, R. | |
dc.creator | Barcena-Soto, M. | |
dc.date.accessioned | 2015-11-19T18:57:37Z | |
dc.date.accessioned | 2022-11-02T16:41:00Z | |
dc.date.available | 2015-11-19T18:57:37Z | |
dc.date.available | 2022-11-02T16:41:00Z | |
dc.date.created | 2015-11-19T18:57:37Z | |
dc.date.issued | 2011 | |
dc.identifier | http://hdl.handle.net/20.500.12104/71019 | |
dc.identifier | 10.1149/1.3660641 | |
dc.identifier | http://www.scopus.com/inward/record.url?eid=2-s2.0-84879442901&partnerID=40&md5=ebd639cd709da6ac78e5e9ccfa345dda | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/5023145 | |
dc.description.abstract | This paper deals with a study of the oxidation processes of the PbS-sodium isopropyl xanthate system in alkaline conditions (pH 8, similar to flotation circuits Pb-Cu) by using cyclic voltammetry and Electrochemical Impedance Spectroscopy (EIS). Three oxidation peaks are identified in the voltammograms that correspond to reactions previously reported in the literature. A plot of the differential capacitance of the double layer vs. potential gives a potential of zero charge (PZC) of -0.31 V vs. SCE for the system, that coincides with an oxidation peak attributed to the adsorption of xanthate. EIS at PZC for different xanthate concentrations evidence an adsorption processes via a charge transfer mechanism under diffusional control. EIS data at potentials more positive than PZC display an inductive loop that is related to a charge transfer processes involving the reaction of the adsorbed intermediates with the consequent modification of the PbS-sodium isopropyl xanthate interface. ©The Electrochemical Society. | |
dc.relation | ECS Transactions | |
dc.relation | 36 | |
dc.relation | 1 | |
dc.relation | 463 | |
dc.relation | 470 | |
dc.relation | Scopus | |
dc.title | Study of adsorption of sodium isopropyl xanthate on galena | |
dc.type | Conference Paper |