Cooper Slag Process

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, cobalt, silica, and alumina. Slag is a major problem in the metallurgical industries as it is dumped into heaps which have accumulated into millions of tons over the years.

Reduction. The reduction process for copper slag is typically followed by magnetic separation [].Depending on the temperature and intensity of reduction, it can be classified as direct reduction, deep reduction, and smelting reduction []monly used reducing agents include coke, biomass carbon, and natural gas [31, 32].The reduction process converts ferrous olivine in copper slag …

Copper smelting slag is a by-product of the copper smelting process, and about 2.2 to 3 tons of slag generates when producing 1 ton of copper. There is large number of valuable elements in copper smelting slag, such as Cu, Zn, Ni, etc. The recovery of valuable metals from copper smelting slag is an important assignment in improving the ...

Copper Slag give it a high resistance to fracture with very low dust formation during blasting, as well as faster blast-cleaning speed when compared to local slag abrasives. This abrasive is commonly used for restoration of heavily painted steel bridges, ships and water towers. ... This cooling process fractures the slag into coarse and angular

Copper slag is an abrasive blasting grit (by-product) made of granulated slag from metal smelting process and refining of copper in which sulphur dioxide is released.

The most viable route to recover copper from sulphide phase is flotation using chemical reagents which previous researchers such as [2, 12, 27] further elaborates on using a two-stage flotation process to recover copper and get 80–87% with iron being further concentrated by a specified technique of molten slag added complex additives. The ...

Copper slag is a type of dense, hard, and wear-resistant glass phase, which can be applied in the construction industry as a building foundation, subgrade material, Portland cement additive, …

Moreover, the flotation kinetic model of copper slag was established and the results showed that the movement of copper slag in the flotation process conforms to the first-order kinetics. The addition of sodium carbonate increased the stability of the pulp and improved the flotation kinetics greatly, resulting in a better flotation performance. ...

Sarfo et al. (2017) carried out carbothermal reduction process of copper slag (from the United States) by mixing 12.5% carbon with copper slag and reacting at 1420 °C for 0.75 h. The initial copper slag is reduced to low-grade pig iron with the recovery efficiency of up to 90% (Sarfo et al., 2017). However, non-ferrous metal elements can also ...

During the past two decades attempts have been made by several investigators and copper producing units all over the world to explore the possible utilisation of copper slag.

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 …

Matte smelting is the main method for copper production, and about 2 tons of slag bearing 30% ~ 40% iron, 0.5% ~ 2% copper and 25%~30% silicon dioxide generates per ton …

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 facilitating the transition to green energy while simultaneously addressing environmental concerns regarding slag disposal. However, the complex mineral …

Copper slag has been carbothermally smelted in a submerged electric arc furnace, partially reducing FeO to a metallic phase comprising of copper and other metals by Acma et …

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 …

Kim et al. (2013) studied a physico-chemical separation process for upgrading iron from waste copper slag. The process involved the crushing of the waste copper slag between 150 and 203 μm followed by the reduction reaction at 1250 °C for 1.5 h and dry magnetic separation. They found that a magnetic product containing over 65 wt% of Fe was ...

This study investigated the feasibility of a low temperature carbothermic reduction-acid leaching method for the extraction of cobalt, copper, and iron from copper slag. The influences of process variables such as borax …

Yang H, Wolters J, Pischke P, Soltner H, Eckert S, Fröhlich J. 2017. Improved collision modelling for liquid metal droplets in a copper slag cleaning process. In: Olsen J, Johansen S, editors. 12th International conference on CFD in Oil & Gas, metallurgical and process industries. Trondheim: SINTEF; p. 355–363; [accessed 2019 November].

The beneficiation of copper slag employing gravity concentration and froth flotation, with particular emphasis on different collector systems, has been reviewed thoroughly. ... The use of waste, fine-grained carbonaceous material in the process of copper slag reduction. J. Clean. Prod., 288 (2021), Article 125640, 10.1016/j.jclepro.2020.125640.

Advantages of Copper Slag. The primary advantage associated with using copper slag in construction is its cost-effectiveness. Copper slag is much cheaper than other aggregates, making it an attractive option for budget-conscious builders and contractors. In addition to being cost-effective, copper slag also offers a number of other benefits.

The recovery of copper (Cu), aluminum (Al), nickel (Ni), cobalt (Co), and zinc (Zn) from metallurgical slag can be accomplished utilizing hydrometallurgical and flotation technologies, since 2.2 tons of copper slag are produced for every ton of copper metal throughout the smelting and converting stages of copper processing .

The flotation tailing is a converter-slag discard. Process for Quenched Slag. The treatment of quenched slag is similar to the treatment of slow-cooled slag except for crushing. Slag from the copper converters is skimmed into ladles, transported to a tilting machine, and granulated by pouring it into a quench trough.

This paper studies the carbon reduction and magnetic separation of copper slag's flotation tailings. The impact of the roasting temperature and alkalinity on the reduction and effect of different size of reduzate on magnetic separation are investigated. The results show that Fe3O4 and fayalite are the main forms of iron among the copper …

The utilization of hydrogen reduction of copper slag in a typical TSL process requires a thorough understanding of interfacial phenomena to optimize the kinetics of the process. In this process, the gas–liquid interface can be divided into two distinct regions: the interface in the bubble plume and the interface on the upper surface.

The slag (cooling–sulfidation) beneficiation process has turned to be one of the most promising methods for copper slag treatment. Xia et al. performed an in situ phase …

Copper slag and Ground Granulated Blast furnace Slag (GGBS) are industrial by-product materials produced from the process of manufacturing copper and iron.

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 …

1. Introduction. Copper slag (CS) is one of the main solid wastes produced in copper smelting industry, mainly composed of Fe 2 O 3, SiO 2 and Al 2 O 3 [1], [2].The annual discharge of CS in China has reached 50 million tons [3].At present, the disposal of CS is dominated by landfill [4].However, with the excessive consumption of land resources, and the …

Advantages of Using Copper Slag for Sand Blasting Media, we list the pros and cons are listed to help you with a decision, Copper Slag MSDS; Copper Slag Uses; ... Being a byproduct of the copper smelting process, copper slag is often more affordable than blasting media. Its high efficiency also means that less material is required to ...

Copper slag is the most economical expendable abrasive for blas ng purpose in areas where recovery and recycling is imprac cal. It is a by-product formed during the manufacture of copper while smel ng and quenching process in copper smelt-er. The raw slag is processed and screed in various grades for blas ng purpose.