Comprehensive Utilization of Copper Slag in a Pyro
Copper slag used in this study was cooled by water quenching, from a copper smelting plant, China Minmetals Corporation. The copper slag was first crushed and ground into −200 mesh powder before the experiment. XRF-1800 X-ray Fluorescence spectrometry (XRF) (Shimadzu, Japan) chemical analysis result is shown in Table 1. The X-ray diffraction ...
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Synergistic environmental benefits from copper slag recycling …
Findings indicate that utilizing recycled copper slag in building materials not only significantly reduces local industry emissions but also demonstrates substantial synergistic effects. This strategy optimally reduces both air pollution and carbon emissions, largely due to the substitution of high-pollution materials with recycled copper slag.
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Element mobility from the copper smelting slag recycling …
The article presents the results of assessing the element mobility (chemical elements and compounds) from the copper smelting slag recycling waste into brown forest soils (Haplic Cambisols) of the southern taiga district in Middle Urals, Russia. The copper smelting slag recycling waste was obtained by crushing the cast slag of the Sredneuralskiy Smelter …
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Element migration from the copper smelting slag recycling …
A field experiment was conducted to study migration of the elements from the copper smelting slag recycling waste into high-moor peat and lawn grasses.
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Leaching behavior and occurrence of metal elements in copper slag…
Copper Slag (CS) is a solid waste produced during the industrial smelting of copper (Gorai et al., 2003).The current pyrometallurgical copper smelting process is mainly through the Ausmet furnace (Fig. 1); the furnace slag goes through the flotation process to obtain copper matter, yielding a composition of CS corresponding to 30–40 % of Fe, 15–20 % of Si, less than …
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Problems, prospects and current trends of copper recycling …
- Recycled back to the plant - Anode slag: Cu: 35–45, Ni: 10–15, Zn: 0.02, Fe: 20–25, ... The copper recycling activities in India not only helps the environmentalists but also are a source of income involving a variety of people—from the roadside scavenger to the scrap merchant who imports and/or buys scrap depending upon the domestic ...
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An extraction of copper from recycling plant slag by using …
This investigation is concerned with the extraction of nugget copper particles from copper recovery plant slag which recycled of copper scrap. For this purpose, the Falcon concentrator was used ...
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Practical experience to theoretical innovation: A model for …
The copper smelting slag (CSS) utilized in this study was sourced from a copper smelter located in Xinjiang, China. In order to gain a deeper understanding of the mineral composition of the CSS and the distribution of metal elements, X-ray diffraction (XRD) phase analysis was performed, with the outcomes presented in Fig. 4 a.
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TECHNOLOGY FOR THE COMPLEX RECYCLING SLAGS OF COPPER PRODUCTION
The results of laboratory experiments to clarify the effect of isothermal exposure time on the recovery of iron from slag during, T = 1273 K and a reducing agent consumption of 25%
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Recycling of metals / Special solutions
Recycling plants for metal composites / Special solutions Whether it's metal/plastic compounds, profiles and sheets from production left-overs, metal turnings and used beverage cans: ANDRITZ Recycling can provide the …
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Characterization, Concentration, and Speciation of Metal
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 different metallurgical properties were …
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Carbothermal reduction of copper smelter slag for recycling …
Increased demand of copper in the last few decades resulted in the generation of a large amount of smelter slag. About 80% of the world's copper to date was produced from sulfide ores by concentrating followed by the pyrometallurgical operations such as smelting and refining (Heimlich et al., 2010, Fan et al., 2014).While slag from blast furnace in iron making has found …
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Copper Slag
Industrial sludge is generated at a rate of 100 metric tons/day, from a copper slag recycling plant. Copper slag is widely used as an abrasive media to remove rust, old coating and other impurities in dry abrasive blasting due to its high hardness (6-7 Mohs), high density (2.8-3.8 g/cm3) and low free silica content.
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The potential for copper slag waste as a resource for a …
The bulk chemical composition of copper slags may vary depending on the pyrometallurgical technique used; the phase composition of the copper slag can be quite diverse (Gbor et al., 2000, Gorai et al., 2003, Lottermoser, 2006, Lottermoser, 2010, Potysz et al., 2015).For example, studies on air cooled and quenched copper slag revealed that the diversity …
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Life cycle assessment of recycling copper slags as cement …
The life cycle impact analysis results provided a comprehensive answer to the first research question, suggesting that the mining industry should apply copper slag recycling and …
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Element migration from the copper smelting slag …
Copper Smelter and Kirovograd Copper Smelter to start in 1994–1995 mining dump cast slag as a source of copper-zinc concentrate. SUMZ announced almost complete processing of its own dump cast slag (20 million tons) in 2019. The technology for recycling copper smelting slag con-sists in grinding cast slag followed by otation extraction of
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Slag Recycling and Metal Recovery
As a result of growing environmental awareness, steel slag is now highly regarded as a recycled material that can reduce environmental impact due to its resource-conservation and energy …
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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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Slag Recycling and Metal Recovery
Our plants utilize state-of-the-art magnetic separation equipment to maximize the recovery of metallics from the raw slag.The processing plants include the latest technology in crushing and screening plant design to cleanly separate the slag …
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Sustainable and Comprehensive Utilization of Copper Slag: …
Large amounts of copper slag are produced every year and major fractions of it are currently disposed, not withstanding the multiple ways the material can be used. Application of the slag is often limited by the presence of hazardous elements and their leaching behavior so they can potentially pollute soil, surface water and underground water. To remove such elements …
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Environmental and Socioeconomic Impact of Copper Slag …
This review article provides the environmental and socioeconomic impacts of slag, as well as a characterization of copper slag, with the aim of reusing and recycling the slag to benefit the ...
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A Literature Review on Partial Replacement of Copper …
durability compared to conventional concrete and has been used in the construction of power plants, chemical plants, mega structures and under-water structures. Copper slag is copper manufacturing industrial by-product material. ... proper use, recycling or reclamation. Copper slag has numerous favorable mechanical properties that can be used ...
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Utilization of copper slag in cement and concrete
The use of copper slag as a pozzolanic material for a partial substitute for ordinary Portland cement and its effects on the hydration reactions and properties of mortar and concrete have been reported in several publications (Al-Jabri et al., 2006, Taha et al., 2007, Malhotra, 1993, Tixier et al., 1997, Ariño and Mobasher, 1999, Douglas and Mainwaring, 1986, Deja and …
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RECYCLING OF SLAG FROM COPPER PRODUCTION
Copper slag is a by-product obtained during smelting and refining of copper. Copper smelting slag typically contains about 1 wt.% copper and 40 wt.% iron depending upon the initial ore quality and the furnace type. Main components of copper slag are iron oxide and silica. These exist in copper slag mainly in the form of fayalite (2FeO ·SiO 2).
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Wastes as resources: update on recovery of valuable metals …
Recycling copper slag can make a positive contribution because there is significant energy invested in these slags, and it contains various metals possible to be recovered. …
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Characteristics and utilisation of copper slag—a review
Current options of management of this slag are recycling, recovering of metal, production of value added products and disposal in slag dumps or stockpiles. Processed air-cooled and granulated copper slag have number of favourable mechanical properties for aggregate use, including excellent soundness characteristics, good abrasion resistance and ...
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Recycling Technology
2. Precious metal and by-metal production at Aurubis. Copper scrap, electronic scrap and residues are used at Aurubis Hamburg (Germany). The basic material for Hamburg's secondary copper production process consists of a variety of …
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Comprehensive review on metallurgical recycling and cleaning of copper slag
Attempts have also been made by several researchers to prepare copper slag-derived ceramics [22][23][24][25]. However, this recycling method causes a waste of valuable metals since copper slag ...
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A Study on Reduction of Copper Smelting Slag …
Copper smelting slag is a solution of molten oxides created during the copper smelting and refining process, and about 1.5 million tons of copper slag are generated annually in Korea. The oxides in copper smelting slag …
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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 circular economy. This …
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