Bibliographic citations
Zúñiga, J., (2018). Análisis metalúrgico mediante cinética de flotación y diseño experimental para la obtención de un concentrado de plata (Ag) a partir de un mineral polimetálico Pb-Ag-Zn-Au, contaminado por cemento [Tesis, Universidad Nacional de Ingeniería]. http://hdl.handle.net/20.500.14076/17739
Zúñiga, J., Análisis metalúrgico mediante cinética de flotación y diseño experimental para la obtención de un concentrado de plata (Ag) a partir de un mineral polimetálico Pb-Ag-Zn-Au, contaminado por cemento [Tesis]. : Universidad Nacional de Ingeniería; 2018. http://hdl.handle.net/20.500.14076/17739
@misc{renati/710078,
title = "Análisis metalúrgico mediante cinética de flotación y diseño experimental para la obtención de un concentrado de plata (Ag) a partir de un mineral polimetálico Pb-Ag-Zn-Au, contaminado por cemento",
author = "Zúñiga Prado, José Miguel",
publisher = "Universidad Nacional de Ingeniería",
year = "2018"
}
The objective of the present thesis is metallurgical analysis through the use of two methods mainly: flotation kinetics and experimental design for the final obtaining of a silver concentrate, from a polymetallic mineral Pb-Ag-Zn-Au, contaminated by cement. The type of research that followed was the combination of exploratory, descriptive and explanatory. The methodology followed uses the work plans, experimentation techniques and dialogues in meetings. The research gave us the following main answers: at a pH: 9-10, recovery in the final lead concentrate: 89% Ag, 82.05% Au, 91.90% Pb, 56.24% Zn, 48.28% Fe, also the mineral can float at high pH but both the degree and recovery are significantly impaired, the reagents used in plant, for pyrite depression, are antagonistic. Given this, the main conclusions are: (a) the flotation of the main ore, lead flotation (with Au and Ag contents), is not recommended at a pH greater than 10.5, while the process is justified in the pH range of [8 to 10.5] with a scheme recommended in the conclusions of this thesis. (b) Due to the development of the different tests (with pH: [9-11]) it is recommended to work with a particle size of 130 pm in the mineral, (c) the use of the recommended reagent scheme is beneficial for the concentration because it improves the yield in the flotation of lead and displaces, to a large extent, the concentration of Au and Ag from the flotation area of Zn to that of Pb. Finally, the strength of the achieved scheme is placed in: definitively ending the use of Zinc Cyanide compounds (Zn (CN)2) in the process, as well as the considerable reduction of the investment in reagents such as: Sodium Metabisulfite (Na2S5O2), Zinc Sulphate (ZnSO4) and the remove of Amyl Potassium Xanthate PAX (Z-11) and unjustified mixtures such as PAX/SIPX, the latter being replaced by Sodium Isopropyl Xanthate SIPX (Z-11).
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