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The treatment of large amounts of copper slag is an unavoidable issue resulting from the high demand for copper during the global transition to a sustainable development path. Metal-rich copper slag might serve as a potential source of metals through secondary recovery. In this study, two copper slags (CS1 and CS2) with …
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The metallurgical recycling of iron and copper from copper slag mainly depends on a transformation from nonmagnetic iron components (fayalite) into magnetite and sedimentation of metallic copper to the bottom of slag at an appropriate oxidising …
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Copper slag is a by-product produced in the copper smelting and converting processes. Every year, more than 40 million tons of copper slag is discharged into the …
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This work proposes an environmentally safe and economically feasible method of waste copper-nickel production slag utilization (Kola Mining-Metallurgical Company, Nornickel, Kola Peninsula, Russia).
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Global copper slag (CS) emissions reached 57.2 million tons in 2021. Despite the increasing reuse of CS, the treatment of CS is still dominated by landfill so far, which not only occupies land resources but also causes damage to the environment. The application of CS to cement-based materials (CBMs) is one of the main approaches to …
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Waste recycling and reuse is an important component of sustainability. Extensive research is being conducted to address this issue by incorporating industrial by-product such as steel slag, copper slag, fly ash, ferro-chrome slag, and so on into the construction industry. Steel slag, which is mostly calcium carbonate, is created as a by …
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This article reviews the production, composition, environmental behavior and treatment options of copper slag, a by-product of copper smelting and converting. It …
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This waste from copper extraction — iron silicates– must be stored in the ground like any other pyrometallurgical slag. With a total copper production capacity of 10.08 lakh million tons per ...
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The copper content of the slags range between 0.8 to 5 wt. % and this is considered too high for disposal to the environment. Currently, the slags are sent to a milling and flotation plant for liberation and recovery of residual copper. The copper recoveries realized in the plant are much lower than expected and it has been …
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Current options for management of copper slag include recycling, recovering of metal, production of value added products and disposal in slag dumps or stockpiles. Currently, copper slag has been widely used for abrasive tools, roofing granules, cutting tools, abrasive, tiles, glass, road-base construction, railroad ballast, asphalt pavements ...
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The microstructure of slags was studied through a scanning electron microscope (SEM) equipped with an energy dispersive spectrometer (EDS), and the results are shown in Fig. 2.As is shown in Fig. 2 (a), five different particles can be observed. According to the EDS in Fig. 2 (b) and (c), the valuable sulfide predominantly comprises …
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Copper slag is a metallurgical waste that is disposed by way of stockpiling at designated dump sites within a mining site. The observed depletion of high-grade iron ores in Botswana and the environmental hazards associated with disposal of untreated metallurgical waste, presents an opportunity for research on secondary sources of iron …
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Dumping or disposal of this slag causes wastage of metal values and leads to environmental problems. Rather than disposing, these slags can be used taking full …
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A large proportion of the copper slags are commonly throwed at the slag disposal pit, which means that a huge space is required for dumping or disposing such large amounts of slag ( Chen et al., 2012). In addition, the non-protected slags will easily cause an environmental risk because they contain increased concentrations of …
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Since practically mined ores contain only 0.65 % Cu [2] and the purity is declining over the years [1,2], 752 MT of copper slag was produced worldwide during the period 1999-2019 with 38 MT ...
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The physical properties of copper slag are given in Table 2.As seen, the density of copper slag varies between 3.16 and 3.87 g/cm 3 based on the amount of iron content. The average specific gravity of copper slag is about 3.5 g/cm 3 that means copper slag is denser than ordinary natural aggregates. In general, water absorption of …
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Copper slag waste is considered a potential world resource owing to the huge amounts being produced annually worldwide which contain significant amounts of valuable metals (Phiri et al., 2021). The global copper slag production is estimated at 752 million tons for the period between 1999 and 2019 from the 13 main producing countries …
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Assuming that all the black copper raw materials per ton of electrolytic copper originate from the company's smelting process, 1.35 tons of black copper will be required, and 3.24 tons of copper-based mixed waste, 0.01 tons of waste copper, 0.46 tons of secondary slag, and 94.5 kg of dust will then be generated and directed to the …
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The utilization and the safe disposal of the generated industrial wastes are one of the major concerns of environmentalists in order to reduce their harmful impacts on human health and the environment. Copper slag …
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Copper slag is a byproduct of copper ore processing that contains valuable metals and poses environmental and socioeconomic challenges. This review article discusses the mineralogy, …
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In smelting, copper-rich matte containing sulphides and copper slag as by-product are formed [].For every ton of copper produced during smelting and refining operations, approximately 2.2–3 tons of fayalite slag is produced and the management of these significant quantities is difficult [2,3].Copper slags contain high amounts of iron, …
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copper slag is generated, and 70 million tons of copper slag is produced worldwide each year []. At present, a large 3 amount of copper slag occupies land and wastes resources, and the harmful elements contained in it always threaten human living environment and health, such as arsenic [4, 5]. The mineral phase of copper slag consists predomi-
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The increased demand for copper, in conjunction with slag disposal issues, has urged the global research community to consider copper slag as a potential secondary resource of copper. Though the properties and characteristics of the copper slag suggest its suitability for various sectors, such as cement, filler material, ballast, abrasive ...
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Copper slag, which is produced during pyrometallurgical production of copper from copper ores contains materials like iron, alumina, calcium oxide, silica etc. For every tonne of metal production about 2.2 ton of slag is generated. Dumping or disposal of such huge quantities of slag cause environmental and space problems.
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The present work focuses on assessing the viability of applying blasted copper slag, produced during abrasive blasting, as fine aggregate for Portland cement concrete manufacturing, resulting in an alternative and safe disposal method. Leaching assays showed no toxicity for this material. Concrete mixtures were produced, with high …
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Therefore, it is very important to collect soot volatilized from the copper slag in the molten state to reduce environmental pollution. The mass of the reduction slag, ingot iron, carbon, and volatiles were obtained. The mass percentages of copper slag, lignite, and CaO before reduction were 314.60, 52.61, and 93.92 g, respectively.
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Copper slag is a by-product of the copper smelting industry. The molten slag from the smelter is quenched in water and quick cooling of this slag results in amorphous, non-crystalline particulates. Some of the characteristics of copper slag such as hardness, high density, and low free silica content are useful in removing heavy rust and ...
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Copper slag waste has continued to cause increasing concerns due to the huge volumes being produced annually worldwide. This paper presents a review of copper slag as a potential resource for ...
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Copper slag waste has continued to cause increasing concerns due to the huge volumes being produced annually worldwide. This paper presents a review of copper slag as a potential resource for cobalt and copper metals for a circular economy. An overview of the chemical and mineralogical characterisation of copper slag from 21 …
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The recycling and utilization of copper slag is of great interest because it avoids the loss of valuable metals and the threat of harmful metals, and saves a lot of …
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