Potentially Exploitable Reprocessing Routes for Recovering Copper
In USA (Arizona), the company Magma Copper was recycling slag (1.8–2.36% Cu) from the smelting of sulfide ores (0.7% Cu) and the conversion of mattes (5–7% Cu) in view of recovering Cu and molybdenum [ 26 ].An overview of copper and cobalt production from ore reserves, and of global demand and supply risks for these metals is presented. The potential benefits of The potential for copper slag waste as a resource for a
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The potential for copper slag waste as a resource for a
To address these challenges, recycling and repurposing of copper slag waste using innovative technologies should be considered, creating a resource for a To cover the operating costs of 13.2 USD/t, at a copper price of 5500 USD/t, the recoverable copper grade has to be 0.24%. To Metals Free Full-Text Processing Tests, Adjusted
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(PDF) Copper Processing Slags: Problems and
Many copper producing mines, especially older mines, use smelting technologies to produce blister copper or copper anodes for The copper slag produced by the slag cleaning furnaces as a final by-product, yields copper in the range of 0.55–1.3 wt.% in the discarded slag, with copper Comprehensive review on metallurgical recycling and cleaning of copper slag
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我国冶金固废大宗利用技术的研究进展及趋势 USTB
钢渣 / 赤泥 / 铜渣 / 铁合金渣 Abstract: In China, the annual discharge of steel slag, red mud, copper slag, and most ferroalloy slag has reached 10–100 million The copper slag serves as a potential secondary resource of copper and other valuable metals. Due to safety concerns, this huge quantum of slags cannot be A comprehensive review on the recovery of copper values from copper slag
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A comprehensive review on the recovery of copper values from copper slag
The loss of such metallic values and the disposal issues of the enormous quantum of discarded slags have urged reprocessing. These metallurgical wastes, Copper slag, generated mainly during copper smelting, and classified as a potentially harmful waste, is an important secondary resource containing not only Comprehensive review on metallurgical recycling and cleaning of copper slag
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Copper slag as a potential source of critical
The Tsumeb copper slag is an under-exploited residue, from which metals, metalloids, and critical elements may be derived, e.g. Sn (Mapani et al., 2014). Successful recovery of raw materials from the existing waste Chemical composition of the, copper slag reprocessing tailings (CSRT) and metakaolin. Components (%) SiO 2 Al 2O 3 Fe 2O 3 MgO CaO TiO 2 Na 2O K 2O CSRT 28.19 4.24 57.83 1.101 1.906 0.303 0.525 0.81Geopolymers in Marine Environment ResearchGate
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Reprocessing of metallurgical slag into materials for the building
SiC inclusions in cast Si ingots are a key problem for Si quality and in the recycling of top-cut Si scraps. In this paper, SiC separation and Si recovery in the CaO–SiO 2 –MgO slag refining process were studied by varying temperature, slag/Si–SiC mass ratio, slag composition, and holding time. When the viscosity of the mixed system viscosity Processing Tests, Adjusted Cost Models and the Economies of Reprocessing Copper Mine Tailings in Chile Malte Drobe 1, *, Frank Haubrich 2,Mariano Gajardo 3 and Herwig Marbler 41,*, Frank Haubrich 2, Mariano Gajardo 3 ResearchGate
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86 IRON AND STEEL SLAG USGS Publications Warehouse
Slag was processed by 28 companies servicing active iron and steel facilities or reprocessing old slag piles at about 129 processing plants (including some iron and steel plants with more than one slag-processing Price, average value, dollars per ton, f.o.b. plant6 19.50 22.00 24.50 26.50 27.50 such as copper slag, can compete withThe article presents an overview of the methods of processing slag from Waelz process, and various approaches employed by scientists globally, aimed at processing such slags. Despite several listed methods of processing slag from Waelz process, none entails a sufficient complex nature of its processing. In addition, the slag Processing of Non-Ferrous Metallurgy Waste Slag for its
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Recycling and Reuse of Mine Tailings: A Review of
Coal combustion; Copper slag Landfills and source of rare earth elements 3 According to Table1, mining waste can present itself as rock waste from the bedrock that has been mined and transported out of the pit. However, it does not have a metal concentration of economic interest. It is stored in a landfill site near mining productionThe Slag Project is a reclamation project to recover precious and base metals from the reprocessing of 22 million tons of slag left in place from the smelting of copper ore at the United VerdeSearchlight Minerals Corporation Announces Operations Update
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Reduction of copper smelting slag using waste cooking oil
The results showed that the Fe3 O 4 content of the copper slag significantly decreased from 17.8% to 4.2% with the addition of 2 mL of WCO at 1250 °C. To better understand the reduction process, the cracking characteristics of WCO over corundum and Fe 3 O 4 were investigated at 600–1300 °C. The cracking of 1 mL of The roasting of copper sulphide produces a calcine which is later processed using the hydrometallurgical route. Extensive research has been carried out on the roasting of copper slag using roasting agents such as sulphuric acid (H2SO4) (Anand et al., 1981; Sukla et al., 1986; Arslan and Arslan, 2002; Dimitrijevic et al., 2016; Deng and Ling, Recovery of cobalt, nickel and copper from converter slag
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Sustainable Chemistry Free Full-Text
Reprocessing these copper tailings through technospheric mining would preserve our primary copper sources and promote resource efficiency. operating cost, and carbon footprint In this study, copper slag reprocessing tailings (CSRT) were synthesized into geopolymers with 40%, 50% and 60% metakaolin. The evolution of compressive strength and microstructures of CSRT-based geopolymers in a marine environment was investigated. Except for compressive strength measurement, the characterizations of X Minerals Free Full-Text Characterization of Slag Reprocessing
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Precious Metal Distributions Between Copper Matte and Slag
Experiments were conducted in a similar way to our previous studies.[25,27,48,49] A high-temperature equilibration under controlled CO-CO 2-SO 2-Ar gas atmospheres followed by quenching in ice–water mixture and direct phase analyses by EPMA and LA-HR ICP-MS (HR-High Resolution) techniques was used to study the 在此基础上提出了固废的大宗量利用、协同利用、节能减碳利用和与智能化结合的资源化利用是这一领域技术发展的主要趋势。. Abstract: In China, the annual discharge of steel slag, red mud, copper slag, and most ferroalloy slag has reached 10–100 million tons; these slags are difficult to be resued我国冶金固废大宗利用技术的研究进展及趋势 USTB
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RTB Bor, Serbia: Copper ore production up, processing costs
In the constant race against time, costs and fluctuating copper prices, similar actions are being also planned and executed at RTB Bor’s other sites. TON’s Vertimill VTM400 vertical grinding mill significantly enhances RTB Bor’s recovery of copper slag reprocessing. After 1,000 hours of operation, the VTM400 has doubled the slagThe global production of copper slag from the smelters is about 21.1 Million Tonnes (MT), the copper content of which lies in the range of 0.5–2% [122]. Significant amounts of copper values and other metals, such as Pb, Zn, Co, Ni, Mo, etc., are lost in the slag. These constituent elements are non-biodegradable and toxic, detrimental toA comprehensive review on the recovery of copper values from copper slag
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Chemical Composition Data of the Main Stages of Copper
Several studies have been carried out to improve Chilean copper production, reducing operational costs, reprocessing tailings, reducing losses of valuable metals, and making the processes safer for the environment and human health [8,20,22,28,46,47,48,49,50,51,52]. For the development of these studies, knowing the The practice of reprocessing, while relatively new, is crucial to reducing environmental damages, obtaining valuable critical minerals from waste, and contributing to more sustainable repurposing and disposal methods. Reprocessing sites with these minerals would provide the United States with more supplies for a lower cost than mining The Reprocessing and Revalorization of Critical Minerals in
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A comprehensive review on the recovery of copper values from copper slag
A recovery ratio of 97.47% Cu in the copper phase was obtained at a lower temperature and shorter duration compared to the pyrometallurgy methods. Wang et al. [ 104, 105] also attempted to separate fine copper droplets from copper matte smelting slag by utilizing super-gravity.the separation is not 100 % efficient. This results in valuable elements such as copper and cobalt being lost to the slag and may require to be recovered. Copper in slag may exist in metallic (Cu), oxide (CuO and Cu. 2. O) and sulphide (Cu. 2. S and Cu. 5. FeS. 4) forms whilst much of cobalt in the slag exists as an oxide because of the highRECOVERY OF COBALT AND COPPER FROM ZAMBIA
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