Rinat MIRVALIEV, Katsutoshi INOUE
The study investigates the selective oxidation of copper and iron sulfide minerals found in low-grade molybdenite concentrates during autoclave leaching in acidic media. The objective is to evaluate the effects of oxygen partial pressure, reaction time, and temperature on the efficiency of copper removal. The methodology involves analyzing the mineral oxidation sequence, which occurs in the order of chalcopyrite, pyrite, and then molybdenite, explained through electrochemical kinetics. Additionally, a cementation process on iron is implemented for recovering copper from the leach liquor. Results indicate that the partly oxidized residues, comprised of molybdenite and iron (hydro-) oxides, can either be treated through flotation or subjected to oxygen pressure leaching in alkaline conditions for extracting valuable molybdenum and rhenium. This work outlines a significant advancement in the processing of low-grade ores, potentially improving the economic feasibility of molybdenite concentrate recovery while contributing to the understanding of metal recovery dynamics in hydrometallurgy.
@article{d903bb2f-3a95-43c9-b262-8d7fd159b187,
title={Acid Pressure Leach Process for Copper Removal*},
author={Rinat MIRVALIEV and Katsutoshi INOUE},
year={2000},
language={English}
}TY - JOUR TI - Acid Pressure Leach Process for Copper Removal* AU - Rinat MIRVALIEV AU - Katsutoshi INOUE PY - 2000 LA - English ER -
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