Blast Furnace Slag
As indicated in Chapter 2, the term blast furnace slag is used often to refer to iron blast furnace slag to distinguish it from other types of blast furnace slag such as copper, lead, and zinc blast furnace slag. Because the blast furnace operation is a continuous process with carefully controlled raw materials being fed in and furnace ...
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 …
Application of steel slags, ferronickel slags, and copper …
Concrete is the most produced construction material in the world and has a close tie to carbon dioxide emissions. To reduce the gas pollution and resource drain of cement production and utilization, researchers have replaced some of the cement and natural aggregate content with industrial by-products such as steel slag, ferronickel …
Minerals | Free Full-Text | Mineralogical Properties of the Copper …
In order to make the flotation processes more efficient for the recovery of copper from the slag, more knowledge is required on the form and origin of the copper losses in the slag during copper production [6,10,15,16,17,18]. Mineralogical characterization of copper in the slags of the SarCheshmeh smelter plant has not been …
Comparison of environmental performance of modern copper …
From the electric slag settling furnace, matte was transported via ladles to the converting process and slag, with 0.8% Cu, was tapped for slow cooling and slag flotation. ... The BBR-BCC process was an exception, because otherwise the discharge slag copper would have been too high with these parameters. Thus, the recovery was …
How to Recover Copper from Slag by Flotation
agree with the findings of other researchers on the occurrence of copper in smelter furnace slags. A photomicrograph of a typical slag is shown in figure 1. Preparation of Slag Samples. ... and 23 percent lower for the low copper slag (sample A). Flotation tailings from the quenched slags ranged from 0.53 to 0.66 percent; slow-cooled slags …
Use of waste copper slag, a sustainable material
The utilization of solid waste is the challenge for the civil and environmental engineers to utilize the waste from different industry to excel the sustainable development, and in the same time, it is matching with the cost concern of the present materials. Copper slag is a by-product obtained during smelting and refining of copper. The waste copper …
Flash Smelting
The slag contains 0.5–1% Cu and it is almost always treated for copper recovery either by electric furnace settling or by flotation of the copper from finely ground solidified slag. Off-gas, rich in SO 2, is collected continuously, cleaned, and sent to …
Drying shrinkage mitigation of alkali-activated blast furnace slag
Volume stability is a critical challenge for the practical applications of alkali-activated materials. To mitigate the drying shrinkage of alkali-activated blast furnace slag-copper slag (AAS-CS), different contents of polyether-based shrinkage reducing admixture (PSRA) and MgO-based expansion agent (MEA) are used in this study.
Modelling of copper (I) oxide reduction in a copper slag cleaning furnace
Copper oxide reduction accomplished with injection of reducing media for several tuyere/plug arrangements in a slag refining furnace was simulated and the reduction performance was compared.
Influences of silicate modulus and alkali content on …
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 ...
Recovery of copper from copper blast furnace slag
Secondary copper blast furnace slag was treated with carbon to derive the conditions for maximum recovery of copper with minimum simultaneous reduction of iron oxide. Experiments were carried out to study the effects of parameters such as temperature, carbon addition and CaO addition to the slag on the efficient recovery of copper. A two …
Recovery of Valuable Metals from Nickel Smelting Slag …
Nickel smelting slag contains valuable metals including nickel and copper. Failure to recycle these metals wastes resources, and disposal of nickel slag in stockpiles results in environmental pollution. Nickel slag recycling is important, and metals can be recovered from slag by flotation. However, considering the complex forms in which …
Minimization of Copper Losses in Copper …
During the last few decades, the pyrometallurgical processes used for cleaning copper smelting slags have been steadily …
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 …
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'
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 …
Kinetic Investigation of the Electric Furnace Copper Slag Treatment
The main aim of the electric furnace treatment in the primary copper industry is the reduction of valuable metals such as zinc, lead or copper itself. On the one hand legal restrictions for the further use of the treated slag are constantly getting stricter while on...
Recover Copper from Reverberatory Furnace Slag
Laboratory and pilot plant investigations have indicated that copper recoveries of 50% can be achieved with fine grinding and flotation of a copper reverberatory furnace slag. Microscopic and microprobe studies indicate that the recoverable copper is in the form of matte, chalcocite, and metallic copper; the …
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-ment in slag handling and metal recovery practice. The ...
Kansanshi Copper Smelter ISACONVERT™ Furnace Tapping …
The furnace is equipped with one slag tap-hole located at an elevation of 1550 mm above the hearth. Slag skimming is performed through a water-cooled copper block installed in one of the copper cooling elements. The original slag launder was lined with refractory and required frequent cleaning and refractory repair.
Reduction of Magnetite from Copper Smelting Slag in the
The reduction of Fe3O4 in copper slag by a graphite rod was studied and the kinetics of the reduction process analyzed. ... was placed in the constant temperature zone of a tubular furnace. After exhausting the air from the furnace using a vacuum pump, nitrogen at a flow rate of 600 mL/min provided a protective atmosphere. The slag sample was ...
Minimization of Copper Losses in Copper …
During the last few decades, the pyrometallurgical processes used for cleaning copper smelting slags have been steadily optimized. The electric furnace or rotary slag-cleaning furnace are now …
Electrical resistivity of eco-friendly hybrid fiber-reinforced …
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.
The potential of copper slag as a precursor for partially …
Semantic Scholar extracted view of "The potential of copper slag as a precursor for partially substituting blast furnace slag to prepare alkali-activated materials" by Rongsheng Xu et al. ... of silicate modulus and alkali content on macroscopic properties and microstructure of alkali-activated blast furnace slag-copper slag. Rongsheng Xu ...
Process of Copper Slag Reduction in an Electric Furnace and …
Steinacker, S.R.; Antrekowitsch, J. Kinetic investigation of the electric …
Advances in recovery of valuable metals and waste heat from copper slag
Differences exist between copper slag and traditional blast-furnace slag in terms of recovery methods, along with difficulties. These are mainly reflected in the following aspects: (1) Composition: Compared with blast-furnace slag, copper slag contains large amounts of iron, copper, and other metals. Therefore, the aspects of …
Co-utilization of electric arc furnace dust and copper slag for
The feasibility of preparing zinc ferrite from high-zinc electric arc furnace …
Evaluation of asphalt mixtures incorporating electric arc furnace …
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 …
Recovery of valuable metals from copper slag
The copper smelting process produces plenty of copper slag every year, which is a hazardous solid waste, but a secondary resource. In the present study, the extraction of copper, nickel, and cobalt from copper slag was investigated through the process of sulfation roasting–water leaching and the process of sulfation …