Copper Slag Recovery and Utilization
By integrating waste heat recovery with metal extraction processes, researchers aim to develop more sustainable and economically feasible methods for utilizing copper slag[4].
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Recovery of valuable metals from copper slag
The copper smelting process produces plenty of copper slag every year, which is a hazardous solid waste, but a secondary ... and thus, the reaction seems to be more likely to reach equi-librium at ...
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The carbon mineralization behavior of copper slag and its …
Copper slag (CS) is an industrial solid waste discharged during the smelting and extraction process of copper, and about 2–3 tons of CS will be produced for every ton of copper produced [[1], [2], [3]].With the rapid development of the copper smelting industry, the amount of copper slag generated is increasing day by day, which has caused serious environmental issues.
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The Link Between Slag Chemistry and Arsenic Flows in …
In this study, thermodynamic calculations have been performed for two cases: Case 2-BB-BB-BB: Bottom-blown furnace + Bottom-blown converting using iron silicate-based …
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Two-stage method recovery of metals from copper slag: …
Copper slag (CS) is a solid waste produced during copper smelting, mainly containing 30–––40 % Fe, 1.74–4.48 % Zn, and other trace amount metal elements (Shibayama et al., 2010, Gümüşsoy and Başyi̇ği̇t, M., Uzun Kart, E.,, 2023).It is reported that China currently produces over 60 million tons of CS annually and possesses a stockpile of 130 million tons of …
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Characterisation and recovery of non-ferrous metals …
Keywords: Copper slag; characterisation; SEM; roasting; metals leaching, hydrometallurgy 16(2), 153–65. 1. Introduction The largest part of copper production is realized through processing of sulphide bearing polymetallic ores that are first concentrated by flotation and subsequently, the concentrates are subjected
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Recovery of Copper and Magnetite from Copper Slag …
Copper slags have been used as abrasives (polishing and cleaning) for metallic structures [15,16] and mainly in the building industry: concrete manufactured with copper slag [5]; copper slags as fine particles in concrete manufacturing [13]; copper slag as a replacement for the sand in cements [9]; copper slag as a filler in glass–epoxy
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High-value terminal treatment: Utilizing copper slag heat in …
The copper smelting industry generates copper slag as its primary solid waste (Tian et al., 2021).The pyrometallurgical process extracts approximately 80% of the copper (Zuo et al., 2022), producing 2–3 tons of copper slag for every 1 ton of copper (Qu et al., 2023).According to statistics, global copper slag emissions in 2022 alone reached 35.2 million …
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Copper matte
The result of the present work forms an important foundation for future work in the kinetic rate formulation of molten phase reactions between copper matte and slag in matte smelting.
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Copper Slag
Manufacturing of copper-based products: Copper slag contains residual copper that can be recovered and used for the production of various copper-based products. Through appropriate processing techniques, copper slag can be recycled to extract copper, which can then be used in the manufacturing of electrical wires, plumbing fixtures, and other ...
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Environmental and Socioeconomic Impact of Copper Slag …
Copper slag is generated when copper and nickel ores are recovered from their parent ores using a pyrometallurgical process, and these ores usually contain other elements which include iron ...
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A comprehensive review on the recovery of copper values …
Gorai et al. [37] reviewed copper slag characterization and various processing routes comprising pyro and hydrometallurgical methods for metal recovery and preparation of …
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copper slag processing
Copper Slag Processing Equi - dommelmozaiek.nl. Copper slag machine feldspar crusher sales xsm.Copper slag machine.Copper slag machine xsm excellent mining crushing machinery products or production line design, the company is committed to building the chinese brand mine crushing and processing machinery, mainly crusher, mill, sand making our products copper …
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Copper slag-aided mechanochemical detoxification soda …
The soda ash chromite ore processing residue (SA-COPR) is a hazardous solid waste generated inevitably in the production process of chromate, even if detoxified, it is prone to the reoccurrence of Cr(VI). Copper slag (CS) is mainly composed of Fe(II) rich mineral-fayalite and can be used as a potential reductant.
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Element Distribution and Migration Behavior in the Copper Slag
Reactions in the copper slag reduction process were analyzed based on chemical composition tests. Based on the results, we determined the element type and mass content in the sample. The reactions of iron oxide containing a typical reduction reaction are shown in Eq. 10. Mass distribution of Fe, Cu, ...
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An efficient approach to utilize copper smelting slag: …
In the bioleaching process, copper slag is treated with bacteria, which oxidize Fe- and/or sulfur (Panda et al., 2015), or Aspergillus niger (Sukla et al., 1992). Pyro method includes reduction and oxidation methods. The both all decrease the viscosity of the molten slag by decreasing the content of magnetite, thereby improving the aggregation ...
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Copper Slag
Fayalite is the main phase of copper slag and a type of Fe silicate glass that is composed of a polymerized network of silicate tetrahedrons, in which SiO 2 and FeO are generally considered as network formers and modifiers, respectively. The structure of fayalite is shown in Fig. 13 [107].In iron silicate glass, O 2− exists in the form of bridging and non-bridging oxygens (BOs and …
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Kinetic analysis on reduction process of copper slag with …
Based on the gas–solid model, both the reaction process of copper slag without CaO and with CaO is in accord with interfacial reaction control model before the reaction time of 1200 s and gas diffusion Jander model after 1200 s. Compared with the gas–solid model, it is better to use the integral method to calculate reaction activation ...
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Direct-to-blister smelting of copper concentrates: the slag …
Equilibrium relations between liquid copper, iron-copper matte and iron silicate slag at 1250°C, Trans. IMM, Sect. C, 82, (3), C193–C201. Google Scholar. ... Modelling copper smelting – the flash smelting plant, process and equi... Go to citation Crossref Google Scholar. Process innovations and sustainability in Finnish metallurgical indust...
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A Method of High-quality Silica Preparation from …
The main components (%) of copper smelting slag are Cu 0.36, Fe 47.94, SiO 2 37.35, Zn 3.47, Al 2.25, CaO 1.64, and MgO 1.05, and the main phases in copper smelting slag are Fe 2SiO 4 and Fe 3O 4. The raw material used in our experiments is the leach-ing solution obtained from copper smelting slag provided by a domestic company after low-temper-
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High-valued and deep utilization technology of copper slag
In order to achieve single recovery of Fe, Cu and Si in copper slag and deep removal of impurities in products, the activated reduction combining directional oxidation are adopted to improve the separation limit of target components, which mineral constituent as well as chemical composition at different stages are investigated through XRD and chemical analysis. …
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Slag Management Services
Tailored services designed to embrace the entire slag management process, including safe and efficient slag pot carrying, cooling and maintenance. Tailored services designed to embrace the entire slag management process, managing …
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The potential for copper slag waste as a resource for a …
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 (Fig. 2).
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The Recovery of Copper from Smelting Slag by Flotation Process …
Materials. The smelting slag used in this study was obtained from a copper plant in China. Mineralogical analysis, performed using scanning electron microscope (SEM) and energy dispersive X-ray spectroscope (EDS), polarizing microscope and X-ray diffraction (XRD), indicated that fayalite (Fe 2 SiO 4) and magnetite (Fe 3 O 4) phases were major components …
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TENORM: Copper Mining and Production Wastes | US EPA
Approximately 75 percent of the copper concentrate ends up as slag. The other layer, called "matte copper," consists of copper, iron sulfide and other metals. Converting: Finally, matte copper is converted into a copper-rich slag, which is then returned to the leaching process and separated from "blister copper," which is sent to another ...
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(PDF) Metallurgical Processing Strategies for Metals …
copper extraction from slag produced > 26. 0% copper versus slag tailings (13.5%). Carranza et al. [36] found that most of the copper-bearing species in slag flota-
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Review on Comprehensive Recovery Valuable Metals and …
Research on the molten sulfide process of copper slag found that the CaO·SiO 2 produced by adding CaO to the slag will replace FeO in Fe 2 SiO 4, thus increasing the activity …
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Sustainable and Comprehensive Utilization of Copper Slag: A …
Within this paper, application options, the environmental behavior, and ways to treat copper slag in order to remove hazardous and recover valuable metals are critically …
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Copper Slag Processing Production Line Flow
The working principle of the copper slag processing production line is to use the physical characteristics of the ductility of the metal copper. The metal copper and the waste slag are separated by crushing, grinding, screening, etc., using a very simple working principle from The extraction of metallic copper from copper slag has significant ...
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Mineralogical Characterisation of Copper Slag …
Copper smelting slag is a significant potential resource for cobalt and copper. The recovery of copper and cobalt from copper slag could significantly augment the supply of these metals, which are essential to …
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