In this study, low-cost zeolite derived from blast furnace slag (Z-BFS) by a facile hydrothermal method was investigated for adsorption of copper (Cu 2+) and cadmium (Cd 2+) ions from aqueous solutions. Furthermore, the characteristics of the prepared Z-BFS were evaluated via different techniques (FT-IR, XRF, XRD, SEM and EDX).
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Towards this goal, the article investigates the roles of ground granulated blast furnace slag (BFS) and copper slag (CS) content, in addition to hooked-end steel fiber length, on the electrical properties of eco-friendly ultra-high performance hybrid fiber-reinforced self-compacting concrete (HFR-SCC) for the first time in the literature.
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. ...
The purpose of this paper is to find differences in the performance of tuyeres and capillary plugs when they are used with high sulphur fuel oil (HSFO), natural gas, and …
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 produced ...
Copper Slag cleaning furnaces are commonly connected to copper smelting units such as Teniente and Noranda converters and Outokumpu flash smelters. The main function of the …
The rapid development of industrialization has significantly increased the demand of copper during the past decades. However, large amounts of solid wastes are generated because of the extraction and smelting of copper [14], [15].Copper slag (CS) is a consequential byproduct from the copper smelting and refining industry.
Cleaning experiments of a copper matte smelting slag from the water-jacket furnace was undertaken by direct reduction in a laboratory-scale electric furnace. The effects of coal-to-slag ratio, w, and the reduction time, t, were considered for two different coal/slag mixing procedures. In the first procedure, metallurgical coal was added to the ...
Copper slag is a by-product of copper extraction by smelting. During smelting, impurities become slag which floats on the molten metal. ... Gbfs Blast Furnace Slag. Supplier Of Slag Inquire Now Add to Favorites Jan-22-21 Angelica Dagindob (1.1) Supplier From Philippines ...
11.2 Mechanically Stabilised Copper Slag Subgrade and Sub Base 30 11.3 Mechanically Stabilised GSB and WMM Layers with Copper Slag 31 11.4 Construction Methodology for Bituminous Mixes with Copper Slag 31 12. Quality Control Tests 31 12.1 Copper Slag Embankment and Subgrade 31 12.2 Copper Slag GSB, Cement Stabilised Base/Sub base, …
In this study, both copper slag and silica sand were subjected to heating in a muffle furnace at varying temperatures of 800°C, 1100°C, and 1200°C, and presented in Table 4. Subsequently, the morphological changes in the samples were examined. Notably, the particles of copper slag retained their shape even at a temperature of 800 and 1100 °C.
The hazardous components of copper slag are released into the ambient environment (Li et al., 2021a, Li et al., 2021b, Zolotova et al., 2021), resulting in environmental pollution and unsustainable developmental issues. Copper slag contains 29–45 % Fe, 25–40 % SiO 2, 5–11 % CaO, 3–7 % Al 2 O 3, and other nonferrous
Direct reduction of a copper matte smelting slag from a water-jacket furnace was undertaken in this study by utilising the latent heat energy of the molten slag, thus resulting in …
Copper smelting slag is produced from copper pyrometallurgy (both smelting and converting stages), usually grading at 0.3-3%. The slag may also contains lead & zinc minerals like galena, sphalerite. ... Generally speaking, the copper dross is treated by rotatory reverberatory furnace. In case of copper dross with high arsenic, tin and antimony ...
The main components of fayalite-based copper slag are iron oxides (FeO and Fe3O4) and SiO2. Based on the slag compositions, the phase equilibrium of this ISASMELT copper slag during the smelting process was analyzed by a FeO-Fe3O4-SiO2 ternary phase diagram (depicted by …
The industrial mineralogy of copper-containing slag from copper smelting reverberatory furnace was studied using X-ray fluorescence spectrometer, X-ray …
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 natural ...
To obtain a deeper understanding and enhance its practical application, the effects of silicate modulus and alkali content of water glass (WG) on the performances of alkali-activated blast furnace slag-copper slag (AAS-CS) are systematically investigated though the fluidity, setting time, hydration heat, compressive strength and drying ...
In the extraction of copper, the slag formed in the blast furnace is: View Solution. Q2. The slag formed in the extraction of iron from haematite in the blast furnace is: View Solution. Q3. Copper is extracted from the ore copper pyrite by smelting in a …
This study evaluates the suitability of using electric arc furnace (EAF) steel slag and copper mine tailings (CMT) as substitution for conventional aggregates used in pavements for roads and highways. Four mix designs containing EAF steel slag and CMT at different proportions were investigated. Mix 1 was granite, Mix 2 consisted of 80% ...
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 addition of SiO 2 …
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 composition of the …
It is recommended that up to 40% of copper slag can be use as replacement of fine aggregates. KEYWORDS: Cement, Compressive strength, Copper slag, Flexural strength, Workability INTRODUCTION Many countries are witnessing a rapid growth in the construction industry which involves the use of natural resources for the development of the ...
Table 9: Performance of slag cements prepared by using 35% copper slag at different fineness. Observation and Analysis: Chemical analysis of granulated blast furnace and copper slag are given in Table 1. The results indicate that granulated blast furnace slag conforms to all the requirements of Indian Standard Specification IS: 12089-1987 for the …
Entrained copper can be recovered via pyrometallurgical slag cleaning in a settling furnace, where the slag viscosity and copper droplet size distribution (CDSD) are critical parameters.
The morphological structure of the copper slag was characterized by Scanning Electron Microscopy (SEM) (JEOL JSM 7001 F FE-SEM). The observation was performed in a vacuum mode with a 30 kV voltage, the EDS imaging was also conducted for analyzing the element distribution with energy resolution of 15 eV (Li et al., 2023, Liu et al., 2022).SEM …
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 al., 2019).At present, …
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 ...
For example, the final slag from slag cleaning in an electric furnace, containing 0.5 % Cu, showed so small amount of metallic inclusions, that can be stated that 90% of copper is in the slag ...
of copper from the slag. Experimental Materials. Industrial copper blast furnace slag was used in this study. Slag sampIes received from the furnace were crushed to less than 3 mm, and 100-g slag sampIes were prepared by means of mechanical splitting. Carbon in the form of graphite powder (-200 mesh, 74 fim) containing greater than 99% fixed
The slags produced from the NCS furnaces (TSL furnace, copper converter, reverberatory furnace) contain copper ranging between 0.8 to 5% w/w. Due to this high content of copper, the slags are milled and floated to recover the copper. The main drawback in the current process is that the final flotation tailings grades are in excess of 0.9% Cu.