The potential of copper slag as a precursor for partially …
The safe and efficient treatment of copper slag (CS) is an important aspect of the circular economy and green development. In order to reduce the negative environmental impact, CS is used as a precursor to substitute different contents of ground granulated blast furnace slag (GGBS) in the manufacturing of alkali-activated materials (AAM)) in this …
Alkaline activated cements obtained from ferrous and non …
Two slags from steel production in the electric arc furnace (Alcalá de Guadaira, Sevilla, Spain) were used: electric arc furnace slag (EAFS) (3–5 mm particle size) originated in the primary metallurgy or fusion and ladle furnace slag (LFS) (0–2 mm particle size) originated in the secondary metallurgy or refining of the molten bath …
The potential of copper slag as a precursor for partially …
DOI: 10.1016/j.jclepro.2023.140283 Corpus ID: 266526178; The potential of copper slag as a precursor for partially substituting blast furnace slag to prepare alkali-activated materials
A reduction study of copper slag in a DC arc furnace
In the present work, the effects of amount of coke, reduction temperature, flux addition, and furnace types on copper slag smelting in a DC arc furnace were studied. The optimum coke amount was found to be 10% of the slag weight in an open-top furnace for a 1 h reduction time in the temperature between 1703 and 1753 K. Similar conditions in a …
Synergetic modification of industrial basic oxygen furnace slag …
Copper slag is an acid slag mainly composed of Fe 2 SiO 4 and CaFeSi 2 O 6, which is classified as solid waste in the copper smelting industry (Li et al., 2019). In China, 2.2–3.0 tons of copper slag were produced per ton of refined copper, and tens of millions of tons of copper slag were released into the environment every year (Zhou et …
Recovery of Pig Iron from Copper Smelting Slag by …
Siwiec, B. Oleksiak, I. Vaskova, R. Burdzik, A study on reduction of copper slag from the flash furnace with the use of anthracite dust, Metalurgija 53, 343-345 (2014). [14] Y. Liao, J. Zhou, F. Huang, Separating and recycling of Fe, Cu, Zn from dumped copper slag by microwave irradiation assisted carbothermic method, Journal of residuals ...
Sulfurization Roasting of Copper Bottom-Blown Slag for …
Copper slag is a residue from the copper smelting process that not only takes up large amounts of space, but also contains harmful elements that can cause environmental pollution. In this paper, zinc in copper slag is sulfide-roasted using pyrite as a vulcanizing agent and anthracite and K2CO3 as additives, thus leaving zinc in the slag …
Copper Anode Furnace: Chemical, Mineralogical and …
In copper anode furnaces, the installed refractory lining is exposed to chemical attack caused by slag and copper oxide. This results in infiltration of the brick microstructure and corrosion of the bricks' inherent components. Increased temperature level changes the temperature and partial pressure during the furnace operation, as …
EFFICIENCY OF COPPER RECOVERY FROM A SLAG IN …
Copper is present in a smelting slag from Teniente Converter (TC) in the form of mecha-nically entrained matte inclusions and dissolved copper. Copper recovery from the slag …
Process of Copper Slag Reduction in an Electric Furnace and …
Subsequently, the process is analyzed in the context of designing furnaces for slag treatment in the non-ferrous metals domain and determining operational parameters . The influence of individual parameters and employed additives on the achievable efficiency of the copper slag reduction process is also examined.
Minimization of Copper Losses in Copper Smelting Slag …
During the last few decades, the pyrometallurgical processes used for cleaning copper smelting slags have been steadily optimized. The electric furnace or …
Waste to valuable resource: application of copper slag and steel slag
Waste recycling and reuse is an important component of sustainability. Extensive research is being conducted to address this issue by incorporating industrial by-product such as steel slag, copper slag, fly ash, ferro-chrome slag, and so on into the construction industry. Steel slag, which is mostly calcium carbonate, is created as a by …
Characterization of copper slag for beneficiation of iron and copper
1.2. Objectives. The objective of this present study is to characterize the BCL copper slag and analyze its composition properties. In the past, research has been focused on ferrous and non-ferrous slags with the intention of employing the findings in various applications [].We had to carry out the characterization task first in order to quantify the …
Alternatives of Copper (I) Oxide Reduction in a Copper Slag …
Hence, the recent trends of copper smelting invariably lead to significant copper loss in slag, which needs to be recovered by means of reduction and settling in a separate slag cleaning furnace. The reduction of Cu 2 O from slags is carried out by adding carbon/coke or by injection of various reductants (e.g., different types of oil or …
The potential for copper slag waste as a resource for a …
Sarrafi et al. (2004) investigated the recovery of copper from reverberatory furnace slag utilising flotation. The parameters such as cooling rate, particle size, collector dosage, pH and flotation time were studied. The results show that for an air-cooled slag at optimal conditions, a copper recovery of 72% was achieved in one stage flotation ...
Influence of Slag Viscosity on Copper Matte Entrainment …
Immiscible glycerol solution and silicone oil systems in the cold model experiments were used to simulate the matte and slag systems in the copper smelting furnace. In different glycerol-silicone oil systems, air was fed by a syringe pump at different injection flow rates and glass nozzle sizes to control bubble size. The bubble size could be ...
A novel slag cleaning method to recover copper from molten copper …
To recover copper from copper slag, a novel slag cleaning method was proposed. The thermodynamics and binary phase diagram of FeO–SiO 2 were calculated first. Then, the effects of experimental parameters on the reduction of Fe 3 O 4, recovery of copper, and slag cleaning mechanism were investigated.The results showed that the …
Minimization of Copper Losses in Copper Smelting Slag …
have been steadily optimized. The electric furnace or rotary slag-cleaning furnace are now generally used to perform this task, giving a level of copper in dis-card slag typically in the range of 0.55 wt.% and 1.3 wt.%,with most plants reporting copper losses in the discard slag in the range of 0.8–1.0 wt.%.
Comparison of environmental performance of modern copper …
This fraction is significant because it affects heavily on the copper recovery during the slag cleaning phase. Basically, the fraction of oxide copper is dependent on the amount of sulfur present, which was kept fixed at 0.9%. The higher the oxidation degree and thus the copper content in slag, the higher the oxidized copper content as a ...
Improving Beneficiation of Copper and Iron from Copper Slag …
In the paper, a new technology was developed to improve the beneficiation of copper and iron components from copper slag, by modifying the molten slag to promote the mineralization of valuable minerals and to induce the growth of mineral grains. Various parameters, including binary basicity, dosage of compound additive, …
Analysis of copper loss in slag in Tamano type flash smelting furnace
Pyrometallurgical production of molten copper generates two slags, smelting and converting. Smelting furnace slag typically contains 1%–2% Cu.
Slag-Hanging Capacity of Numerical Simulation and Analysis …
DOI: 10.1007/s40831-024-00818-1 Corpus ID: 269417093; Slag-Hanging Capacity of Numerical Simulation and Analysis of Blast Furnace Copper Cooling Plate Based on ANSYS 'Birth–Death Element'
Extraction and separation of copper and iron from copper smelting slag
China's copper resources are characterized by low grade and complex composition. A large amount of copper smelting slag (CSS) containing valuable elements such as copper and iron is produced through smelting. ... Cleaning of a copper matte smelting slag from a water-jacket furnace by direct reduction of heavy metals. J. …
Alternatives of Copper (I) Oxide Reduction in a Copper …
Reduction in a Copper Slag Cleaning Furnace Goran Vukovi´c, Anton Ishmurzin, Juergen Schmidl, Bojan Zivanovi´c, and Bernhard Handle Abstract As environmental, energy saving, and legislation considerations are becoming ever more important, there is evidently a demand for further improve-
A Review of Comprehensive Utilization of Copper Slag of …
The electric furnace method, the vacuum depletion technology, and the electric field enrichment method are all physical ways to separate the copper in the copper slag; they have an effect on the metal droplets only but are not applicable to the copper oxide and copper sulfide in the copper slag.
Co-utilization of electric arc furnace dust and copper slag …
The feasibility of preparing zinc ferrite from high-zinc electric arc furnace (EAF) dust and high-iron copper slag (CS) based on direct microwave roasting of the wastes together was assessed in this study, with a focus on the effect of microwave roasting temperature. According to the permittivity and permeability measurements of …
Reductive-sulfurizing smelting treatment of smelter slag for copper …
In an anode furnace, partial oxygen pressures are even higher than in converting: Selivanov et al. (2013) reported a copper content of about 33% in anode furnace slag.
Characterization of Fayalite from Copper Slags
Pyro-metallurgical copper slag (CS) waste was used as the source material for ultrasound (US) silica extraction under acidification processes with 26 kHz with HCl, HNO3, and H2SO4 at different ...
Preparation of Black Ceramic Tiles Using Waste Copper Slag …
Copper slag and stainless steel slag of Electric Arc Furnace (EAF) are two typical metallurgical solid wastes, which contain a large number of valuables, such as Fe, Cr, and Cu. The transition metal elements in the waste slags, such as Cr and Fe, can be recycled as the coloring ions in the black ceramic tile. ...
Kansanshi Copper Smelter ISACONVERT™ Furnace Tapping …
Blister Tap-Hole Refractory Insert Life. Unlike slag or copper matte, blister cannot be tapped through a water-cooled copper element. Contact of molten blister with a water-cooled copper element typically results in a rapid dissolution of the copper element, which eventually may cause a steam explosion or furnace leak with serious …