Copper slagCopper slag is a major waste produced in pyrometallurgical plants during the smelting and converting operations and has caused heavy environmental contamination.
DOI: 10.1016/j.rnrec.2024.107591 Corpus ID: 268979044; Life cycle assessment of recycling copper slags as cement replacement material in mine backfill @article{Zhou2024LifeCA, title={Life cycle assessment of recycling copper slags as cement replacement material in mine backfill}, author={He Zhou and Hakan Basarir and …
1. Introduction. Copper slag (CS) is a type of solid waste associated with the production of the copper metal. Approximately 2–3 tons of CS are generated when producing 1 ton of copper metal [1], [2].The annual production of CS is approximately 40 million tons worldwide [2].During the previous decades, large amounts of CS have been …
Copper slag recycling and processing plant During blasting, copper slag breaks into smaller particles on impact with metal surfaces. After several rounds of reuse, the copper slag gets contaminated with rusts and paints and becomes a waste material but without any change in its chemical composition. The
China: 22.8: Eastern Europe and CIS: 5.7: ... Overburden, mine tailings, sediments from concentrator plants and scrap, slag, dross, reverts, slime, flue dust, mill scales, sludge, etc., from the process are the major sources of pollution unless handled and treated suitably. ... The copper recycling activities in India not only helps the ...
The copper smelter slags are highly heterogeneous and chemically diverse (Table 2).The bulk chemical composition of copper slags mainly depends on the metallurgical processes from which they are derived, which are determined by type of concentrate, type of fluxes, type of furnaces and cooling rates (Gbor et al., 2000, 2003; …
The used copper slag was collected from a copper smelting plant of Zijin Copper Co., Ltd., Fujian, China. Before using as an alternative raw material for the investigated ceramics, the slag has ...
In this article, we summarize and compare different LIB recycling techniques. Using data from CAS Content Collection, we analyze types of materials recycled and methods used during 2010–2021 using …
Fig. 1 shows that the phase diagram of Fe-Cu as well as copper content variation with temperature in Fe-Cu-C system. It indicates that ∼10% copper can be dissolved in the γ-iron phase at 1300 °C/1573 K (Fig. 1 a). Solubility of copper increases with lower carbon content and increasing temperature (Fig. 1 b).Since it is inevitable that …
The key factors that reduce the overall environmental impact for China's copper industry include decreasing direct heavy metal emissions in air and water, increasing the national recycling rate ...
Nickel smelting slag contains valuable metals including nickel and copper. Failure to recycle these metals wastes resources, and disposal of nickel slag in stockpiles results in environmental pollution. Nickel slag recycling is important, and metals can be recovered from slag by flotation. However, considering the complex forms in which …
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 …
Full size image. The copper content of copper slag is 0.5–4.5% or even higher, which is much higher than the 0.2–0.3% mining grade of copper mines in China. …
Zinc in copper slag occurs in zinc-iron spinel with content of 1–3% [8], besides, lead exists in copper slag in the form of lead alum (PbSO4) [9]. The copper content of copper slag …
The utilization of solid waste is the challenge for the civil and environmental engineers to utilize the waste from different industry to excel the sustainable development, and in the same time, it is matching with the cost concern of the present materials. Copper slag is a by-product obtained during smelting and refining of copper. The waste copper …
Newswise — Copper smelting is a major source of copper production, generating significant amounts of slag. In 2022, China produced over 11,000 kilotons of …
Slag is also called molten slag. The melt that floats on the surface of liquid substances such as metals during the pyrometallurgical process is composed mainly of oxides (silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide), and often contains sulfides and a small amount of metal. Slag Introduction The composition of the …
The high-efficiency recycling of metals in copper-cadmium slag by ozonation with ultrasonic catalysis is proposed. ... The raw material used in leaching experiment is sourced from a zinc plant in southwest China. After drying for 12 h and grinding, representative samples were selected for the following characterization. ...
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 …
The fine-grained copper slag finds its applications in pavements, while the granulated one improves the stability of the asphalt mixtures. 3.1.3. Concrete. The pozzolanic activity of copper slag has been reported to be similar to that of fly ash [65]. The blended mixture of copper slag and cement exhibited similar properties to that of a ...
Copper smelting is a major source of copper production, generating significant amounts of slag. In 2022, China produced over 11,000 kilotons of refined …
1.Introduction. Copper, which is second only to the aluminum in the consumption of nonferrous material, has been widely used in various industries, such as construction, machinery, national defense, and electric power (Schlesinger et al., 2011).The demand of copper increased from ∼ 19.0 million tons in 2010 to ∼ 24.0 million tons in 2020, which …
1 School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao, China; 2 Shanghai Engineering Research Center of Solid Waste Treatment and Resource Recovery, Shanghai Jiao Tong University, Shanghai, China; 3 School of Metallurgy, Northeastern University, Shenyang, China; Copper slag is a solid …
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 recycling materials rich in precious metals as well as intermediate smelter products originating both from Aurubis' …
Best Value Smelting Slag Copper Slag Smelting Slag Processing Smelting Slag Recycling Plant, Find Details and Price about Wholesale Smelting Slag Wholesale Copper Slag from Best Value Smelting Slag Copper Slag Smelting Slag Processing Smelting Slag Recycling Plant - Henan Forui Machinery Technology Co., Ltd.
Flotation is the dominant beneficiation method at present, which mainly aims at utilizing the residual copper in the slag (Zhou et al., 2021; Piatak and Parsons, 2015).However, in order to float out copper sulfide encapsulated in fayalite, a large amount of energy is required to fully grind the copper slag, while other valuable elements are …
According to statistics, cumulative stockpiles of copper slag in China are more than 300 million tons. Copper slag not only contains a large amount of Fe but is also rich in various valuable metal elements such as Cu, Pb, Zn, and Co, which is a valuable secondary resource . The effective recovery of copper and iron resources in copper …
Numerous slags are produced as a second stream which is not desired in various metallurgical processes, e.g., copper slag (CS) from smelting and processing of copper ore [1,2].The main mineral ore …
J. Environ. Sci. China (2016) X. Huang et al. ... Optimum content of copper slag as a fine aggregate in high strength concrete. Mater. Des. (2010) ... The recycling effect of BOF slag in the portland cement properties. Resources, Conservation and Recycling, Volume 127, 2017, pp. 216-220.
13 Recycling of steelworks slag in China in 2017, [5] ... The three most important trends for slag recycling relate to further investments in granulation plants for blast furnace slag, the increase in slag trading with separate slag grinding plants and the increasing use of steelworks slag as an additive for the concrete industry. ...
The copper smelter slags are highly heterogeneous and chemically diverse (Table 2).The bulk chemical composition of copper slags mainly depends on the …
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 losses of most plants in the discarded slag limited between 0.8 wt.% and 1.0 wt.% …
The copper slag used in this study was obtained from 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) was used for chemical analysis of the sample, and the result is shown in Table 1.
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 …
Newswise — Copper smelting is a major source of copper production, generating significant amounts of slag. In 2022, China produced over 11,000 kilotons of refined copper, leading to 2.2 to 3 ...
The Group has since then become one of the main industrial and urban waste recycler in Singapore, with services covering waste collection, disposal, processing and recycling of industrial, urban and organic waste. Leveraging on its involvement in in-house R&D as well collaboration with strategic partners and research institutions, ecoWise is able to provide …
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, …
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).
Pyrometallurgical processes burn batteries in a furnace to produce a slag containing lithium, which isn't usually recovered, and an alloy of other metals, like cobalt, copper, and nickel.
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 …