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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 …
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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 ...
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Steel slag is the by-product during the separation of molten steel from impurities in the steel-making furnace. The basic oxygen furnace (BOF) slag, electric arc furnace (EAF) slag, and ladle furnace (LF) slag are three major types of SS produced in the steelmaking processes.As drawn in Fig. 2, BOF slag and EAF slag are both …
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a novel impedance measurement system for the determination of the slag composition in the EAF and LF, a camera-based system for the determination of the slag viscosity during the stirring process in the LF, …
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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.
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The reduction behaviour of hydrogen with FeO in synthetic molten HIsarna slag has been investigated using two experimental methods: (1) Blowing 5% or 10% H 2-Ar onto the molten slag at 1450°C ...
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In some cases, the LFS is reintroduced into the steel production process (hot recycling), by injection into both Electric Arc Furnace (EAF), as well as in the oxygen converter (BOF), reducing the ...
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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 …
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The type of steel furnace slag (SFS), including electric arc furnace (EAF) slag, basic oxygen furnace (BOF) slag, ladle metallurgy furnace (LMF) slag, and argon oxygen decarburization (AOD) slag, can significantly affect the composite properties when used as an aggregate or as a supplementary cementitious material in bound applications, such …
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Shu-Yuan Pan, in Resources, Conservation and Recycling, 2018. 3 Electric arc furnace (EAF) slag ... (EAF) steelmaking and ladle refining (LF) processes (Yildirim and Prezzi, 2011). ... BOFS and electric arc furnace slag (EAFS) are produced in basic oxygen furnace and electric arc furnace respectively, which are the most widely used processes ...
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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.
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ABSTRACT. Recycling ladle furnace (LF) slag helps in sustainable steel making and reduces steel production costs. This paper focuses on recycling Si/Mn/Al …
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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 …
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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.
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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 ...
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1. Introduction. Electric arc furnace (EAF) steelmaking is an eco-friendly process, which recycles end-of-use scrap metal and constitutes approximately 30 pct. of the 1.8 billion tons of steels produced globally [1, 2].Within the EAF steelmaking process, slagmaking is essential in absorbing impurities such as sulfur and phosphorous during …
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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
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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 …
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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 …
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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 …
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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 ...
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Steelmaking in the electric arc furnace (EAF), either scrap-based or based on hydrogen direct reduced iron, will in future contribute substantially to the reduction of CO2 emissions in the iron and steel industry. However, there still will be the need to introduce carbon into the EAF process either to carburize the steel or to create ing …
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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 ...
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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 …
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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 ...
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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 …
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Of the 16.3 Mta of steelworks slag in Europe, 52.3 % are BOF slag, 34.9 % are EAF slag and 12.6 % are other types of steelworks slag. Of this amount, 11.8 Mta or 72.4 % was recovered, 15.3 % went to interim storage and 12.3 % to dumps and landfills. The recovery or recycling quantities are shown in Fig. 8.
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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 …
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ABSTRACT. Recycling ladle furnace (LF) slag helps in sustainable steel making and reduces steel production costs. This paper focuses on recycling Si/Mn/Al-killed LF slag as a replacement for CaO–Al 2 O 3-based synthetic slag for treating high carbon Si/Mn-killed steels.Characterization of different types of LF slag was carried out to …
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