101· The copper slag is highly heterogeneous and chemically diverse. Thus, characterisation of the copper slag is fundamentally important in determining the best approach for metal recovery, assessment of environmental impacts, and its utilisation as a construction material. Knowledge of the characterisation of copper slag, physical and mechanical …
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20241020· Copper slag, a bulk non-ferrous solid waste, is critical in establishing a closed-loop cycle in the copper metallurgy industry. Currently, the processing techniques for copper slag are characterized by prolonged procedures, secondary waste discharge, limited value utilization, and high energy consumption.
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Efficiency of copper recovery from the slag in an electric furnace depends on number of factors, such as slag composition and properties, forms of copper, rate of oxides reduction and slag overheating [2, 3]. The growing costs of energy carriers make the unitary electric energy consumption an important factor in process optimization.
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These metallurgical wastes, nowadays, represent a promising secondary source of copper. The recovery of copper from these slags can be the right solution to meet the increased demand for copper. The present article attempts to review important research carried out in this direction.
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121· Over 50 million tons of copper slag are produced worldwide annually. Stacking is currently the primary method used to treat copper slag, resulting in …
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61· Magnetite and pyroxene were obtained by using a simple magnetic separation process to segregate the remaining slag phase. The whole process achieves the full resource utilization of copper slag, and exhibits great potential for the future industrial utilization of copper slag in an economically and environmentally friendly way.
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202491· The effective recovery of metals from copper slag not only minimizes resource waste but also holds significant importance for fostering green and sustainable practices in the copper smelting slag industry.
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200721· The recovery of copper and cobalt from ancient copper slags from the Küre region of Turkey was investigated. A fayalitic-type of ancient copper slag containing 1.24% Cu, 0.53% Co and 53.16% Fe
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Pyrometallurgical production of copper generates two slags: smelting furnace slag and converter slag which contain 0.5-2% Cu and 2-8% Cu, respectively. The following three methods are generally utilized for recovering the copper from these slags on an industrial scale: (i) recycling of the converter slag to the smelting furnace, (ii) cleaning of smelting and/or converter slags in …
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421· As a result, potential slag treatment routes including their benefits and drawbacks are proposed. Considering the recent progress in developing for utilization options of copper slag as well as in the development of metal recovery and removal from slag there is potential for application of increasing slag amounts. Graphical Abstract
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427· Prospect of Increased Copper Slag Utilisation The valuable aspect of the study is that the issues of copper slag treatment and utilisation …
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To recover metal from copper slags, a new process involving two steps of oxidative desulfurization followed by smelting reduction was proposed in which one hazardous waste (waste cathode carbon) was used to treat another (copper slags). The waste cathode carbon is used not only as a reducing agent but also as a fluxing agent to decrease slag melting point. …
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ending on the region, determine how well copper may be extracted. This study evaluated hydrometallurgical processing of opper metal from malachite ore of Kola Tembein, Tigray, …
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2024101· Iron grain growth during deep reduction roasting is important for iron enrichment from copper slag (CS) through magnetic separation. In this work, a n…
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24 · Metal recovery from copper converter slag by roasting with ferric sulphate （） （）
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2025224· Traditional copper smelting slag cleaning processes for matte recovery are limited by the use of non-renewable and high-cost fossil reductants and fluxes. Fly ash with tremendous yield and low cost is one of industrial solid waste, and mainly composed of carbon, silicon, and calcium oxides. In this study, fly ash instead of fossil reducing agent and …
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33· Copper slag, a waste solid produced in the copper smelting process, is a high-quality secondary resource with huge output. 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 natural resources and energy. This paper firstly reviews the main methods for …
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202491· Copper smelting slag (CSS) is a by-product of modern copper production. In this study, iron resources were extracted from copper smelting slag using chlorine roasting and magnetic separation techniques for the first time.
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101· The copper slag is highly heterogeneous and chemically diverse. Thus, characterisation of the copper slag is fundamentally important in determining the best approach for metal recovery, assessment of environmental impacts, and its utilisation as a construction material. Knowledge of the characterisation of copper slag, physical and mechanical …
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98· The variety of slag compositions of Table 1, is inherent to both the concentrate composition and the extraction method applied. Each slag composition requires an appropriate treatment method for further metal recovery or for utilization as construction material [27, 28]. Thermal reduction of copper smelter slags with solid carbon is commonly applied in industry to …
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Efficiency of copper recovery from the slag in an electric furnace depends on number of factors, such as slag composition and properties, forms of copper, rate of oxides reduction and slag overheating [2, 3]. The growing costs of energy carriers make the unitary electric energy consumption an important factor in process optimization.
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2003111· This paper gives a review of characteristics of copper slag as well as various processes such as pyro, hydro and combination of pyro-hydrometallurgical methods for metal recovery and preparation of value added products from copper slag.
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A recovery process was developed to separate the valuables from the silicates thereby producing value-added products and simultaneously reducing environmental concerns. Results show …
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These metallurgical wastes, nowadays, represent a promising secondary source of copper. The recovery of copper from these slags can be the right solution to meet the increased demand for copper. The present article attempts to review important research carried out in this direction.
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2024712· The valuable metals copper and zinc were successfully recovered from a water-quenched lead smelting slag containing zinc in Gansu Province. This study focuses on the application of the direct reduction roasting-flotation process for extracting these metals from the slag phase. To comprehend the recovery principle of copper and zinc minerals in the slag …
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23· Keywords: Copper slag waste Circular economy Characterisation Metal recovery Utilisation A B S T R A C T Copper slag waste has continued to cause increasing concerns …
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202475· In conclusion, the literature review indicates a growing interest in utilizing copper slag as a potential source of iron. The studies reviewed highlight the high iron content of copper slag and various methods for its recovery and utilization, emphasizing its potential for iron recycling and its environmental benefits. 1.1 Properties
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24 · Metal recovery from copper converter slag by roasting with ferric sulphate （） （）
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81· Therefore, the recovery of these valuable metals from the smelting slag is important for the sustainable development of copper making industry. Encapsulated copper matte droplets are the main source of copper in the slag, and chemically dissolved copper is also present in the slag (Wang et al., ).
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Copper recovery from primary smelter slag consists of the removal of mechanically entrained copper matte and metallic copper inclusions, formed during reduction of dissolved cuprous oxide.
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