Trends in Ocean S‐Isotopes May Be Influenced by Major LIP Events
Geophysical Monograph Series, Page 341-376., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Ross. R. Large +5 more
wiley +3 more sources
Analysis the possibility of improving the economic indicators of exploitation the deposit Cementacija Kraku Bugaresku - Ore field Cerovo [PDF]
Mining and Metallurgy Engineering Bor, 2014 Cementacija - Kraku Bugaresku is a complex of ore bodies in the southeastern part of the deposit Cerovo. It contains a substantial portion of ore with high content of oxides regarding to the total copper in the ore, and with the existing processing ...
Vaduvesković Zoran +2 more
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Results in Chemistry, 2023 The main objectives of this article were to firstly decrease the amount of sulfide in the (Volcanic Massive Sulfide –VMS) in the eastern Sudan (Ariab) area through a roasting pretreatment, secondly determine the best and optimum (thiosulfate ...
AL motasim Tambal +4 more
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The treatment of copper–gold ores by ammonium thiosulfate leaching [PDF]
Hydrometallurgy, 2002 Abstract The application of ammonium thiosulfate for the treatment of copper–gold ores has been investigated. Copper minerals and copper–gold samples were leached in an ammonium thiosulfate solution under varying experimental conditions, i.e. aeration, temperature and reagent addition.
Ellen Molleman, David Dreisinger
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Leaching of Oxide Copper Ores by Addition of Weak Acid from Copper Smelters
Metals, 2020 In this study, weak acid in the curing and leaching stages of copper ore was incorporated, and we analyzed its effect on the dissolution of copper and final impurities. The weak acid corresponds to a wastewater effluent from sulfuric acid plants produced
Giselle Araya +7 more
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Review, evolution, and optimization of the treatment of Kansanshi mixed copper ore [PDF]
Journal of the Southern African Institute of Mining and Metallurgy, 2016 Over the last six years, the Kansanshi copper-gold mine has continued to process significant quantities of complex transitional mixed ores. Initially, the ore treated came predominantly from accumulated stockpiles. Subsequently, the feed source shifted primarily to freshly mined ore that generally showed less tarnish with better flotation kinetics, but
Ngulube, C., Chongo, C., Paquot, F.X.
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Yankuang ceshi, 2018 BACKGROUND Lead-zinc ore often co-exists with sulfide ore to form polymetallic deposits. The content of the associated beneficial elements can provide an important reference for the comprehensive utilization evaluation of the mineral deposits.
ZHANG Jie, YANG Guo-yun
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Effect of deep oxidation of chalcopyrite on surface properties and flotation performance
International Journal of Mining Science and Technology, 2022 In this study, chalcopyrite was oxidized in hydrogen peroxide (H2O2) solutions of different concentrations to simulate different degrees of oxidation in real ores, and the effects of H2O2 treatment on chalcopyrite surface properties and flotation ...
Qingyun Luo +4 more
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3D micropore structure evolution of ore particles based on image processing
工程科学学报, 2016 The micropore structure and evolution of copper oxide ore particles before and after acid leaching were investigated by high resolution X-ray micro-computed tomography(micro-CT) and three-dimensional(3D) image analysis. The pore structure parameters,such
YANG Bao-hua, WU Ai-xiang, MOU Xiu-xiu
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Review of reasearch and technical development focused [PDF]
Acta Montanistica Slovaca, 1998 Treatment of flotation tetrahedrite concentrates produced from the of ore mined in the Rudňany and Rožňava ore deposits is a very complex technological problem. This problem has not been solved succesfuly so far.
Slavkovský Marián
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