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 is a smelter waste product produced by the nonferrous metallurgical industry during matte smelting and conversion during pyrometallurgical processes [1,35]. Globally, approximately 14 million tonnes of copper slag are produced . The major chemical compositions of copper slag are FeO, SiO 2, CaO, MgO, and Al 2 …

Copper slag (CPS) is a metallurgical waste product that is created through the matte smelting of copper metal. CPS is an industrial waste substance that is formed as a by-product of the copper production process. It is a smooth and glassy by-product of the matte smelting and refining phases involved in the pyrometallurgical removal of copper.

Copper slag is one of the materials that is considered as a waste material which could have a promising future in construction industry as partial or full substitute of either cement or aggregates. It is a by-product obtained during the matte smelting and refining of copper.

1. Introduction. Producing one ton of pure copper produces about 2.2–3 tons of copper slag (CS) as a waste by-product that has high FeO 2 and low SiO 2, Al 2 O 3 and CaO (Gorai et al., 2003), and is released into the nearby environment (Shi et al., 2008).In 2015, the major CS production was by China, Japan, Chile, Russia and India (about …

Copper slag is a metallurgical waste that is disposed by way of stockpiling at designated dump sites within a mining site. The observed depletion of high-grade iron ores in Botswana and the environmental hazards associated with disposal of untreated metallurgical waste, presents an opportunity for research on secondary sources of iron …

Copper slag is a solid pollutant with high recyclability. Reduction and separation are regarded as effective disposal methods. However, during the melting process, the separation and migration behavior of elements in the copper slag is complicated. Thus, the formation of pollutants cannot be controlled merely by optimizing the operation …

Copper slag is a by-product obtained during smelting and refining of copper. The waste copper slag can be used as abrasive tools, road construction, and ballast. …

In order to minimize the amount of waste it is necessary to make more use of copper slag as a valuable resource of minerals, increasing the percentage of utilized copper slag. More than that, the slag contains a substantial amount of valuable metals, with the metal value around 60 times higher than the value of the slag as a product itself …

The copper slag waste used in the present study was collected from the Nkana slag dump, Kitwe, Zambia. All reagents used in the reduction process, leaching, and chemical analysis were of analytical grade. All experiments were carried out on copper slag with a particle size of less than 75 μm.

The present work investigates copper slag as a substitute for river sand in high-strength concrete. The concrete mixtures were manufactured with 10%, 30%, 50%, 70%, and of copper slag to evaluate the mechanical and durability properties. The experimental results indicate that replacing copper slag above 50% affects the …

Abstract: Copper slag is generated when copper and nickel ores are recovered from their parent ores using a pyrometallurgical process, and these ores …

Copper slag is a waste produced during pyrometallurgical processing of metals from copper concentrates. The decomposition and oxidation reactions of the …

Waste copper slag contains abundant valuable metal element Fe, and residual elements such as Cu, As, Pb, Zn, and Mo. Simply stockpiling or landfilling would waste valuable metal resources and cause contamination due to the leachable harmful elements. In this paper, the HJ/T299-2007 test and TCLP test have been utilized to …

This research proposed an efficient, innovative and environmentally friendly technology named smelting reduction-sulfurizing process, which uses one waste (waste ferric-oxide desulfurizer) to treat another (waste copper slag). In the new process, the waste ferric-oxide desulfurizer was employed not only as a sulfurizing agent to sulfurize …

After copper recovery by flotation, the remaining part of the slag is considered waste and disposed of in the slag dump area. However, even after copper recovery, copper slag flotation tailings (CSFT) may still contain several metals in varying amounts. However, the complexity and low metal concentration have undermined the potential of …

An innovative, economical, and environmentally sound hydrometallurgical process has been proposed for recovering Cu, Ni, and Co from copper-rich converter slag by organic acids. In the leaching experiments, the effects of organic acid concentrations, pulp density, temperature, and time were investigated. Optimum recovery of 99.1% Cu, …

Overall, copper slag waste is considered to be a non-hazardous material when used in construction according to the report by the USEPA of 1991 (Ravindra et al., 2017) and these findings were ...

Therefore, copper slag waste is considered a potential world resource because of the huge amounts being produced annually worldwide containing significant amounts of valuable metals. The current practice for management of copper slag waste based on a linear flow model of 'produce, use and dump' is unsustainable due to finite …

Copper slag is one of the mining wastes that is raising growing concern due to the huge volumes being produced and dumped annually worldwide. These huge …

In this work, an innovative and carbon-free smelting reduction process is proposed to recycle valuable metals from waste copper slag using secondary aluminum dross as a reductant. Experimental and thermodynamic investigations were carried out to understand the reaction and separation process and its correlation with smelting …

While it is preferable to reuse copper slag waste, significant amounts are disposed of by deposition on landfills [31]. Therefore, despite the lack of the possibility of full biodegradation (filler decomposition), it is assumed that after the end of the life cycle of PLA-CS composites, it will be possible to realize the composting process, and ...

Copper slag (CS) is a type of nontoxic industrial waste that is obtained during matte smelting and refining of copper. CS resembles the size of NFA and can be used as partial or full replacement of NFA in various types of concrete.

Copper slag, generated mainly during copper smelting, and classified as a potentially harmful waste, is an important secondary resource containing not only valuable metals, such as Cu, Fe, Zn, Co and Ni, in abundant quantities, but also hazardous elements, such as Pb and As.Hence, in response of its potential economic performances and …

Waste management is one of the biggest challenges in the mining and processing industries, especially waste material such as copper slag. It is estimated that 2.2–3 tons of copper slag is …

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).

Through this method, waste heat of the high-temperature slag can be fully recovered, eliminating the complicated copper slag pretreatment process. In this paper, the reactivity of granulated copper slag after redox calcination was studied by X-ray diffractometer (XRD) and Scanning Electron Microscope (SEM), the highest reactivity …

To utilize the waste heat of molten copper slag for biomass steam gasification, the mixing of biomass and molten slag was the first step to be considered. In fact, in the presence of copper slag, the syngas products yields would change with varied slag basicity and minor elements contents. The initial temperature of biomass, copper …

1. Introduction. Copper slag has a dense structure and is chemically stable [[1], [2]].In the past, copper slag was regarded as industrial waste and directly dumped in the slag yard or utilized for building materials [[3], [4]].These treatments cause the loss of metal resources and pose not a high threat to the environment [5].Copper slag is an artificial …

Copper slag waste has been used to adjust iron during cement clinker production due to its high iron content (Huang, 2001). The main constituent of the copper slag used by Huang (2001) was vitreous ferrosilite (FeSiO 3) which has a low melting point and could be used to significantly reduce the calcination temperature for cement clinker …