Citas bibligráficas
Dávila, L., (2020). Caracterización mineralógica del oro en la zona sudoeste del yacimiento cerro Corona, Cajamarca-Perú [Tesis, Universidad Nacional de Ingeniería]. http://hdl.handle.net/20.500.14076/21409
Dávila, L., Caracterización mineralógica del oro en la zona sudoeste del yacimiento cerro Corona, Cajamarca-Perú [Tesis]. PE: Universidad Nacional de Ingeniería; 2020. http://hdl.handle.net/20.500.14076/21409
@misc{renati/266550,
title = "Caracterización mineralógica del oro en la zona sudoeste del yacimiento cerro Corona, Cajamarca-Perú",
author = "Dávila Saavedra, Luis Antonio",
publisher = "Universidad Nacional de Ingeniería",
year = "2020"
}
The Cerro Corona deposit is a Cu-Au porphyry located on the mining district of Hualgayoc; it is an open pit mine and the final product is a concentrate of copper with gold content. The recovery process includes flotation and gravimetric concentration techniques, that are efficient for copper recovery and can be improved for gold. The improvement in gold recovery is based on the understanding of its textural characteristics, the relationship with its carrier ores and other minerals that difficult their recovery. This research work focuses on the mineralogical characterization of gold in the southwest zone of the porphyry. Gold generally has a particle size that varies between 1 and 40 micrometers, but granulometry less than 12 micrometers is more abundant. 196 gold grains have intergrowths including microcrystalline pyrite and 163 gold grains have intergrowths including enargite. Also, 237 gold grains were identified where at least one of the 3 types of pyrite is predominant; as well as 78 of gold grains present inter-growths that include chalcopyrite, with enargite and gold, in addition to other minerals. Grades and “rougher” recovery and final recovery are directly proportional; however, when gold is associated with pyrite there are regular to high recoveries in the “rougher” circuit, but low final recoveries; which indicates the loss of gold associated with pyrite. The separation of gold pyrite in the current circuit, with the aim of a subsequent recovery by another hydrometallurgical method (consider Pressure Leaching) or possible sale are options that should not be ruled out. It is recommended to continue with the study of structural or submicroscopic gold.
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