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Some DRI-EAFs are operating at low basicity (EAF 9, 11, 13, 15 in Table 3), but half of the DRI-EAFs are still operating at high slag volumes and basicity near 2 (EAF 10, 12, 14, 16 in Table 3 ...
Up to 60% is dissolved in the slag; 20% recycled as BOF refractories; 20% recycled as ladle slag addition EAFs Reutilize in part in the EAF or ladle, for EAF slag or for concrete Ladles Most of ...
Several studies used LF slag and EAF slag for stabilization with a low success rate. Recently, the application of a high proportion of steel slags in marine …
The electric arc furnace (EAF) has proven to be an excellent reactor as a means to recycle various materials, in particular steel scrap. ... 2005). Gorez et al. (2002) and more recently, Bonetti et al. (2005) have discussed the recycling of ladle slag and car tires into the EAF, respectively. Bennet et al. (2000), Bennet and Kwong, 2001, Bennet ...
A new technique is presented to recycle ladle slag within the electric arc furnace through the injection system. The dilution of the chemical species contained in the slag and their combination with the species featuring the EAF slag afford a double advantage: the final slag is structured by chemical species that do not lead to the …
DOI: 10.1016/J.RNREC.2016.12.009 Corpus ID: 114424685; EAF slag in asphalt mixes: A brief review of its possible re-use @article{Skaf2017EAFSI, title={EAF slag in asphalt mixes: A brief review of its possible re-use}, author={Marta Skaf and Juan Manuel Manso and {'A}ngel Arag{'o}n and Jos{'e} A. Fuente-Alonso and …
The main challenge of the steel industry for the next decade is the steel production transformation process, starting in Europe. The CO 2 intensive blast furnace/basic oxygen furnace (BOF) route will be substituted by a combination of Direct Reduced Iron (DRI), based on natural gas, later on "green" hydrogen, with an Electric Arc Furnace (EAF) or …
LF steel slag is the solid waste produced by the secondary refining of BOF and EAF steel. About 10–50 kg of LF steel slag is discharged for each ton of crude steel ... Cominoli, L.; Galvin, A.P.; Sorlini, S.; Plizzari, G. Sustainable Recycling of Electric Arc Furnace Steel Slag as Aggregate in Concrete: Effects on the Environmental and ...
Steel slag is one of the most common waste products from the steelmaking industry. Conventional methods of slag disposal can cause negative impacts on humans and the environment. In this paper, the process of …
Ladle furnace (LF) slag plays an important role in modern steel making in terms of quality and productivity. The major challenge of using LF slag is its dusting problem. The polymorphic transformation of β-dicalcium silicate (monoclinic) to γ-dicalcium silicate (Orthorhombic) at about 450 °C is the leading cause of its disintegration. Hydration of …
In practice, there are three major uses for EAF oxidizing slag: 1. EAF slag, in the same way as BOF slag, has traditionally been used as unbound material in preparing subgrades, subbases and bases for beds, embankments of roads and railways (Behiry, 2013; Chesner et al., 1998; Motz and Geiseler, 2001; Rohde et al., 2003; Stroup-Gardiner and …
Electric arc furnace (EAF) slag has excellent mechanical properties that justify its use as aggregate in the manufacture of bituminous mixes. Its main properties, the problems with its application, and the important features of the mixtures made with this slag (mechanical behavior, resistance to fatigue and permanent deformation, moisture …
ABSTRACT. Recycling ladle furnace (LF) slag helps in sustainable steel making and reduces steel production costs. This paper focuses on recycling Si/Mn/Al …
The function of the slag during the steelmaking process is to maintain the temperature of the molten iron. They can be classified into basic oxygen furnace slag (BOF), electric arc furnace slag (EAF) and ladle furnace slag (LF) [10,11]. In addition, Huaiwei wrote a review of several methods for treating the various stainless-steel wastes .
recycling evaluated in the present study mainly consists in the reuse of the ladle slag and refractory, injecting them into the Electric Arc Furnace. The recycling of ladle slag can permit to achieve interesting advantageous results: decreasing the amount of dumped material, the cost of EAF fluxes and improve the slag iness.
allurgical characteristics of the LF slag, the EAF slag and their interaction with the recy- ... Basic flow of liquid steel production and recycling: the KT-slag process. Figure 1.
The type of recycling evaluated in the present study mainly consists in the reuse of the ladle slag and refractory, injecting them into the Electric Arc Furnace. The recycling of ladle slag can permit to achieve interesting advantageous results: decreasing the amount of dumped material, the cost of EAF fluxes and improve the slag iness.
EAF and BOS slag were compared in a 2-years field experiment in an area of constructed wetland, which had a high concentration of phosphorus in its effluent (Barca …
The use of synthetic fluxes in secondary steelmaking not only improves the properties of top slag and steel quality but also increases the production cost. Ladle furnace (LF) slag can be used as a replacement to synthetic fluxes owing to its chemical and mineralogical compositions. Valorization of LF slag helps in sustainable steelmaking …
KEY WORDS: carbon/slag interactions; slag ing; EAF steelmaking; waste polymers; recycling. 1. Introduction In recent decades, the world steel market has seen the widespread adoption of elect ric arc furnace (EAF) steelmak-ing technology, since the entire pattern of the industry is changing in response to technological innovations, energy
With an aim to recycle waste plastics in EAF steelmaking, carbon/slag interactions for a number of blends made of metallurgical coke and HDPE (high density polyethylene) and an EAF slag (34.8 mass‐% Fe 2 O 3) have been investigated at 1550°C using a sessile drop arrangement. The rate of gas generation showed an increase with …
The study affirms EAF slag's nonhazardous status. The main challenges identified in EAF slag applications include substantial variations in composition and …
Based on research of recycling LF hot slag,some measures were adopted in EAF Steelsmaking Plant of GISE.Recylcing of LF hot slag was realized,and good results were obtained.
Recycling of ladle slag in the EAF: Improvement of the ing behaviour and decrease of the environmental impact ... This simulation is the same for LF slag; the differences are related to ...
Electric arc furnace (EAF) steelmaking has been proven a promising recycling route for a variety of industrial, mining and metallurgical wastes enabling the recovery of contained metals in the ...
Recycling of LF-White Slag. Franc Memoli. 2007. Over the last few years technologies of the plants dedicated to recycle of ladle slag have been improved. The type of …
The review covers three main types of slag—basic-oxygen furnace (BOF), electric-arc furnace (EAF), and ladle furnace (LF) slag—and explores their diverse characteristics. While steel slag shows promise for enhancing the properties of concrete, further research is needed to develop scalable treatment methods ensuring volumetric stability.
for sintering and iron-making recycling [3]. The utilization of slags can not only ... LF, and EAF. Table 11.1 summarizes the typical amounts of the typical solid wastes generated from iron and steelmaking plants. Worldwide iron slag production in 2014 was estimated on the ... basic oxygen furnace slag (BOFS), electric arc furnace slag (EAFS ...