Velten et al. (2022) carried out an analysis of copper ore tailings in different locations of a same dam, focusing on triaxial tests to characterize dense samples, varying the compaction rate.
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ABSTRACT The study involved the chemical and mineralogical analysis of actual tailings production from Lubin Concentrator Plant (KGHM Polska Miedz SA Group). KGHM Polska Miedz SA Group is the world's leading company that mines and processes sediment-hosted stratiform copper deposits in SW Poland. From the beginning of copper ore mining, …
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This demands knowledge of the compacted material's response. Thus, the present research assesses the mechanical response of compacted copper ore tailings extracted from two different sampling locations within the dam reservoir (i.e. …
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The possibility of selective Cu and Zn leaching from the sample of old pyrite tailings, which is one of the most widespread types of solid waste forming during non-ferrous metal production, using sulfuric acid solutions and water was studied. It was shown that water leaching provided selective extraction of Cu and Zn and comparatively low iron ion extraction. …
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for high tailings facilities in the deep valleys of the Andes in South America. 2.1 NET PRESENT VALUE ACCOUNTING APPLIED TO TAILINGS MANAGEMENT There is a commonly held perception that transporting tailings as a slurry to a facility is the most economic approach. However, to a large extent this tailings dewatering, density and shear strength, and
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The possibility of selective Cu and Zn leaching from the sample of old pyrite tailings, which is one of the most widespread types of solid waste forming during non-ferrous metal production, using sulfuric acid solutions and water was studied. ... The Development of Innovated Complex Process for Treatment of Old Flotation Tailings of Copper-Zinc ...
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This study investigates copper ore tailings deposited in Repparfjorden, Norway in the 1970's. Bathymetric show that the tailings deposit still occurs as a series of cone-shapes …
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Thin-layer heap bioleaching of copper flotation tailings containing high levels of fine grains was carried out by mixed cultures on a small scale over a period of 210 d. Lump ores as a framework were loaded at the bottom of the ore heap. The overall copper leaching rates of tailings and lump ores were 57.10wt% and 65.52wt%, respectively. The dynamic shifts of …
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Details of our tailings facilities can be found on our interactive tailings disclosure map. ... This unique technology achieves recovery rates of up to 85% from primary sulphide ore, the most abundant type of copper ore in the world – substantially higher than recoveries achieved by alternative leaching technologies.
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the use of a real effluent obtained from the leaching of sulfide ore tailings is studied for the biosynthesis of copper nanoparticles. For this purpose, the bacterial biomass of Pseudomonas stutzeri was used as a bioreducing agent. The leaching of the chalcopyrite-bearing tailings achieved a copper recovery of 50% in 8 h, thanks to sodium
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This study investigates copper ore tailings deposited in Repparfjorden, Norway in the 1970's. Bathymetric show that the tailings deposit still occurs as a series of cone …
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2.1 Study area description and sample collection. The copper-nickel mine tailings pond was built in 1999 and is located in northern Xinjiang Province and in the eastern part of Fuyun County ().The design level of the pond capacity is grade Ⅴ and the floor area is about 1.5 × 10 5 m 2.The slag waste is disposed of by the traditional wet discharge method and the …
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published by the chair of the Global Tailings Review, copper accounts for 46% of the world's tailings (2016). The same paper maintains that to obtain 20.1mio tons of copper, 14'913mio tons of rock are extracted from the ground. With declining ore grades in many active copper projects, as well as the projected increase in copper demand,
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This study, carried out in tailings from two sediment-hosted stratiform copper deposits in the Lublin-Głogów Copper District in Poland (Kupferschiefer-type deposit) and Zhezkazgan (cupriferous sandstone-type deposit) in Kazakhstan, analysed the mineralogy of copper, zinc, and lead minerals as related to metal accumulation in sediments. Microscopic …
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Increasing population levels, growing economies, rapid urbanization and changes in consumption patterns have increased the demand for raw materials such as base and precious metals, leading to growing concerns regarding their availability and the global efficiency of the mine supply chain. Mine tailings, consisting of process effluents that are generated in a …
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To comprehensively reuse copper ore tailings, the recovery of γ-Fe 2 O 3 from magnetic roasted slag after sulfur release from copper ore tailings followed by magnetic separation is performed.
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The formation of layering during the sedimentation process of tailings makes it of great significance to investigate tailings and to analyze their susceptibility to flow liquefaction. In this study, homogeneous iron ore tailings (IOTs) specimens were reconstituted with pure coarser grains and pure finer grains sampled from a typical tailings storage facility. Additionally, an …
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A laboratory scale study was conducted, aimed at finding an effective method for processing fine concentration tailings of copper-nickel ores.
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Typical sulphide copper ore flowsheet process of copper mine tailings management. ... The form must contain information on the proposed amounts of the chemical to be used along with details of its chemical and physical properties and its fate, including how the chemical will be managed and handled after use and its concentrations and amounts in ...
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Copper froth flotation tailings containing 1.19 and 0.97 wt% total and acid-soluble copper, respectively, from Chibuluma mines in the Copperbelt province of Zambia were characterized by SEM and ...
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The Copper Mark considers the GISTM to be the main "internationally recognized standard" for the safe management of tailings. The Copper Mark expects its participants to implement the …
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According to Table 2, copper in the ore primarily exists in the form of copper sulfide, with an oxidation rate of 19.14 %, classifying it as mixed-type copper ore. The content of native copper sulfide accounts for 42.97 %, while the content of secondary copper sulfide is also significant, reaching 37.89 %.Secondary copper sulfide is formed by ...
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Iso-floatability flotation process was further applied to the magnetic tailings, achieving a copper grade of 28.37 wt.% and a recovery ... and 25.21%, respectively. Therefore, this study provides an available separation of copper-zinc-lead minerals from iron tailings at Marcona Iron Ore Mine based on process mineralogy, thereby giving a prior ...
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Mining is an important industry, accounting for 6.9% of global GDP. However, global development promotes accelerated demand, resulting in the accumulation of hazardous waste in land, sea, and air environments. It reached 7 billion tonnes of mine tailings generated yearly worldwide, and 19 billion solid tailings will be accumulated by 2025. Adding to this, the …
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Mine tailings are the waste material that remains after the economic fraction has been extracted from the mineral ore. Tailings consist of a slurry of ground rock, and water and chemical …
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Using this analysis, we will identify the most promising method(s) of economically reprocessing copper mine tailings to recover critical metals from the tailings sampled and tested.
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In order to confirm the effect of FeS2 on copper leaching efficiency and the possibility of applying the optimal conditions to another copper ore treatment, sample A (copper ore excludes FeS2) and sample B (copper ore consists of 0.5% FeS2) were used in the HPL experiments.
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The tailings treatment includes three key aspects: (i) settling efficiency for flocculation and sedimentation; (ii) sediment moisture content for concentration and storage in …
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Bao et al. [11] explored the process flow for reprocessing iron tailings and determined the adoption of a process flow of "copper-zinc mixed flotation - regrinding - copper-zinc separation - zinc flotation - iron magnetic separation - reverse flotation of iron concentrate" to recover Cu, Zn, Fe, and associated precious metals from iron tailings ...
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Currently, approximately 1.4 billion tons per year of iron ore tailing wastes (IOT) are generated, mainly in Australia, Brazil, and China. This work describes the characterization and application ...
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