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In this paper, the properties, research status, and valuable metal recovery of copper slag in China are reviewed, and the recovery status of copper and iron from …
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This inert slag can also be used for land filling, for making of road and in construction works like embankment for rivers, etc., Converter slag (0.36 kg/kg of copper) produced from SWIL and slag (1.6 kg/kg of copper) from Birla copper (Sharma, 1998a, Sharma, 1998b) is granulated and sold out to the construction companies for road …
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The research from Central South University presents a significant advance in metal recycling technology, particularly for copper, lead, and zinc recovery from …
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Air-cooled and granulated copper slags have several favourable mechanical properties for use as aggregates in construction such as excellent soundness characteristics, excellent abrasion resistance and good stability (Gorai et al., 2003).These properties of copper slag make it suitable as a partial or full replacement for Portland …
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The metallurgical recycling of iron and copper from copper slag mainly depends on a transformation from nonmagnetic iron components (fayalite) into magnetite and sedimentation of metallic copper to the bottom of slag at an appropriate oxidising …
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Table 1 Chemical composition of OPC and CS/mass fraction,% Composition CaO MgO Al 2O 3 SiO 2 Fe 2O 3 SO 3 P 2O 5 Na 2OK 2O CuO OPC 60.71 0.88 5.20 21.18 4.44 3.59 0.10 0.12 0.71 0.04
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Section snippets Generation and cleaning of copper slag. Copper pyrometallurgy, which is the primary method for the production of copper can be classified into different types, such as conventional copper smelting process (e.g. blast furnace smelting, reverberatory furnace smelting, and electric-furnace smelting), and modern …
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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. The waste was obtained by crushing the cast slag (particle size 0.05 mm) followed by flotation extraction of copper concentrate. The waste was introduced into lime-neutralized peat …
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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 …
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contaminated copper slag has to be properly treated or washed to meet certain recycling criteria (as listed in the next section), before it can be further used for other applications. The amount of washed copper slag available for use is estimated to be 0.4 million tons per year. In Singapore, a typical spent copper slag recycling and ...
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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 ...
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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 …
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Copper smelting is a major source of copper production, generating significant amounts of slag. In 2022, China produced over 11,000 kilotons of refined …
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China is one of the most important countries utilizing secondary copper (Raghupathy and Chaturvedi, 2013).Its production (approximately 2.7 million tons) accounts for approximately one third of global gross production, ranking first in the world, as shown in Fig. 1 (Wilson et al., 2006, Beijing Antaike, 2015, Wood et al., 2011).China has attracted …
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Materials. The raw materials used in this study mainly included copper slag and secondary aluminum dross (Figures 1(a) and (b)), which were collected from Zijin Copper Co., Ltd. (Fujian, China) and Zhengzhou Aluminum Co., Ltd. (Henan, China), respectively. The chemical compositions of these two industrial wastes are listed in …
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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 …
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Every payment you make at Made-in-china is protected by the platform. ... One-of-a-kind Smelting Slag Copper Slag Smelting Slag Processing Smelting Slag Recycling. Copper slag is the solid waste slag produced when smelting copper metal, these waste slags contain a certain amount of copper metal particles, depending on the smelting …
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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 …
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Turning waste into wealth: Synergistic recovery of metal from copper slag. 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 tons of slag per ton of copper produced. This slag contains valuable metals like copper …
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The rapid growth in copper demand in China has exerted high pressure on global copper production. China should develop a more efficient copper recycling …
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Global copper slag (CS) emissions reached 57.2 million tons in 2021. Despite the increasing reuse of CS, the treatment of CS is still dominated by landfill so far, which not only occupies land resources but also causes damage to the environment. The application of CS to cement-based materials (CBMs) is one of the main approaches to …
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cessary to explore new slag recycling technologies based on the distinct physical or chemical properties of the slag. Japan and China are two leading steel producing coun-tries. The mass production of crude steel is accompanied by large quantities of slags. Great efforts have been made in both countries to decrease slag emission or promote slag ...
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the options for dust and residue recycling to the. ... Metallurgical integrated plants, excluding China 10, 11, 17 ... 752 MT of copper slag was produced worldwide during the period 1999-2019 with ...
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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 ...
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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, …
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Copper slag, Iron ore tailings (IOT) and M-Sand (MS) were the materials used as partial replacements for river sand among them Copper slag and Iron ore tailings were used as in replacement levels ...
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DOI: 10.1016/J.JECE.2021.105132 Corpus ID: 234029423; Copper slag: The leaching behavior of heavy metals and its applicability as a supplementary cementitious material @article{He2021CopperST, title={Copper slag: The leaching behavior of heavy metals and its applicability as a supplementary cementitious material}, author={Rongxing He and …
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A 4000 m 2 steel slag (SS) bed was constructed in the brackish water area for water quality remediation in 2017. This study demonstrates the ability of SS to stimulate carbon sequestration based on one-year pilot and in situ SS beds. The pilot SS bed increased the soil organic matter (SOM) content by 5.1 wt %, sequestering sewage …
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