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reuse of ladle furnace slag

Recycling Ladle Furnace Slag as Flux in Steelmaking: A ...

16/09/2019  Behera N, Raddadi A, Ahmad S, Tewari N, Zeghaibi O (2016) Use of Al-killed ladle furnace slag in Si-killed steel process to redue lime consumption improve slag fluidity. In: Proceedings of the 10th international conference on Advances in molten slags fluxes and salts 2016, pp 1031–1039

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Recycling of ladle slag in the EAF: improvement of the ...

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 formation of powders and better stabilize the foaming slag.

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Recycling of ladle furnace slags Semantic Scholar

Ferrous industry slag is waste product of all steelmaking manufactures. These materials should be reused or stocked. There is abundant literature on the subject of reuse and recycling of blast furnace(BF), basic oxygen furnace(BOF), electric arc furnace(EAF). However, due to the fact that ladle furnaces(LF) have only been constructed in significant numbers since the 1980's, the relatively low ...

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Recycling Ladle Furnace Slag as Flux in Steelmaking: A ...

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 and also...

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Recycling of ladle furnace slags - Research Online

There is abundant literature on the subject of reuse and recycling of blast furnace(BF), basic oxygen furnace(BOF), electric arc furnace(EAF). However, due to the fact that ladle furnaces(LF) have only been constructed in significant numbers since the 1980's, the relatively low slag volume in comparison to the other slags and also the high variability in slag

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Recycling of ladle furnace slags Request PDF

Ladle furnace (LF) slag can be used as a replacement to synthetic fluxes owing to its chemical and mineralogical compositions. Valorization of LF slag

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Recycling of ladle furnace slags Semantic Scholar

Ferrous industry slag is waste product of all steelmaking manufactures. These materials should be reused or stocked. There is abundant literature on the subject of reuse and recycling of blast furnace(BF), basic oxygen furnace(BOF), electric arc furnace(EAF). However, due to the fact that ladle furnaces(LF) have only been constructed in significant numbers since the 1980's,

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The reuse of ladle furnace basic slags in clayey soil ...

Electric arc furnace slag (EAFS) and ladle furnace slag (LFS) are by-products of the electric steelmaking sector with suitable properties for use in bituminous mixtures as

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A way to reduce environmental impact of ladle furnace slag ...

18/07/2013  While some steelmaking slags have been widely characterised and, to a certain extent reused, ladle furnace (LF) slag is used in different applications because of its specific properties. The main purpose of the case study presented in this paper concerns the reduction of potential LF slag environmental impacts, because of its intrinsic physicochemical properties.

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Recycling Ladle Furnace Slag as Flux in Steelmaking: A ...

Ladle furnace slag (LFS) is a by-product of a steel plant. As the chemical composition and free lime (f-CaO) content of each batch of slag are significantly different, it is difficult to use the ...

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A way to reduce environmental impact of ladle furnace slag

Ladle furnace slag (LFS) is a by-product of a steel plant. As the chemical composition and free lime (f-CaO) content of each batch of slag are significantly different, it is difficult to use the ...

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Use of ladle furnace slag containing heavy metals as a ...

25/02/2020  1. Introduction. The ladle furnace slag or refining slag, referred to as the ladle slag (LS) thereafter, is a by-product generated from the steel refining stages when the steel is being desulfurized in the secondary refining process of high-alloyed steel (Manso et al., 2005; Setién et al., 2009; Vilaplana et al., 2015).On average, producing one tonne of steel results in 30 to 50

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Characterization of Ladle Furnace Slag from Carbon Steel ...

The ladle furnace slag is a nonhazardous industrial waste because the ecotoxicity evaluation by its eluate has shown that the LF slag does not contain constituents which might in any way affect the environment harmfully. A promising type of steel slag for applications is the ladle furnace (LF) slag, which is also known as the basic slag, the reducing slag, the white slag, and the

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Industrial uses of slag—The use and re-use of iron and ...

been made in the re-use of such slag. With respect to steelmaking slag, emphasis has in recent years been placed on hot-metal treatment before refining and ladle treatment after decarburization. The bulk removal of silicon, phosphorous and sulphur from the hot-metal product of the blast furnace by specially designed slags prior to refining in a basic oxygen furnace,

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Recycling of ladle slag in the EAF: improvement of the ...

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 formation of powders and better stabilize the foaming slag.

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Recycling of ladle furnace slags Semantic Scholar

Ferrous industry slag is waste product of all steelmaking manufactures. These materials should be reused or stocked. There is abundant literature on the subject of reuse and recycling of blast furnace(BF), basic oxygen furnace(BOF), electric arc furnace(EAF). However, due to the fact that ladle furnaces(LF) have only been constructed in significant numbers since the 1980's, the relatively low ...

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Recycling Ladle Furnace Slag as Flux in Steelmaking: A Review

Recycling Ladle Fnace Slag a Fl in Steelmaking: A Reiew Suguna Soumya Varanasi1 Venu Madhava Rao More 1 M. Bhaskar Venkata Rao2 Sankar Reddy Alli3 Anil Kumar Tangudu3 Dey Santanu3 Received: 7 March 2019 / Revised: 5 August 2019 / Accepted: 12 August 2019 / Published online: 16 September 2019

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Recycling of ladle furnace slags - CORE

There is abundant literature on the subject of reuse and recycling of blast furnace(BF), basic oxygen furnace(BOF), electric arc furnace(EAF). However, due to the fact that ladle furnaces(LF) have only been constructed in significant numbers since the 1980\u27s, the relatively low slag volume in comparison to the other slags and also the high variability in slag chemistry, very few papers have ...

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Laboratory Evaluation of Ladle Furnace Slag in Unbound ...

Steel is an inherently never-ending product, in terms of recycling and reuse. The steelmaking process creates an industrial by-product termed as slag. Ladle furnace slag (LFS) is produced at the final stages of the steelmaking process in ladle refining furnaces. The potential use of LFS as a base/subbase material requires a thorough knowledge ...

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LADLE FURNACE SLAG REPLACEMENT ON THE FLEXURAL

Ladle furnace slag (LFS) collected from Southern Steel Berhad Penang, Malaysia was partially replaced into thin fly ash geopolymers to investigate the effect of slag replacement. Table 1 depicts the chemical composition of fly ash and ladle furnace slag obtained via XRF analysis. The fly ash was made up of mainly SiO . 2. and Al. 2. O. 3. of 56.30% and 28.00% respectively while the ladle ...

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Desulphurization in a Ladle Furnace Thermo-Calc Software

The slag must take up a large amount of S from the liquid steel (have a “high sulfur capacity”) so that a significant amount of sulfur will move from the liquid steel to the slag phase. The example explores these two conditions for an equilibrium between liquid steel and slag in a ladle furnace, trying to find good slag

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Ladle Furnace Slag in Construction Semantic Scholar

Ladle furnace reducing slag is a common byproduct in steelmaking of carbon and low alloy steels. After air cooling and weathering over several days, this material is completely ground into fine white particles. Physical, chemical, and crystalline characterizations were performed in order to verify possibilities for its direct application as a construction material.

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The processed electric arc furnace ladle slag order 2014

furnace ladle slag generated and processed during each 1-year period following the commencement of the continuous process; and 4.2.2. Routine sampling of the electric arc furnace ladleslag by collecting either 5 composite samples from every ,000 tonnes (or part thereof) 2 processed or 5 composite samples every months (whichever is the 3 lesser); and testing each sample for the chemicals and ...

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The processed electric arc furnace ladle slag exemption 2014

The consumer must ensure that theprocessed electric arc furnace ladle slag is not applied in or beneath water, including groundwater. 7.5. The consumer must keep a written record of the following for a period of six years: • the quantity of any processed electric arc furnace ladle slag received; and • the name and address of thesupplier of he processed electric arc t furnace ladle slag ...

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Recycling of ladle slag in the EAF: improvement of the ...

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 formation of powders and better stabilize the foaming slag.

More

Recycling Ladle Furnace Slag as Flux in Steelmaking: A ...

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 and also reduces steel production cost. In spite of beneficial composition, valorization of LF slag is difficult due to its disintegration phenomenon.

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Cyclic Use of Ladle Furnace Refining Slag for ...

The effect of sulfur enrichment on desulfurization reaction in ladle furnace slag-recycled process could be partially offset mainly by two aspects: the amount of slag increased with increases in the number of times recycled slag reused and in the quantity of lime added, which could directly reduce the mass fraction of sulfur in the recycled ...

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Laboratory Evaluation of Ladle Furnace Slag in Unbound ...

Steel is an inherently never-ending product, in terms of recycling and reuse. The steelmaking process creates an industrial by-product termed as slag. Ladle furnace slag (LFS) is produced at the final stages of the steelmaking process in ladle refining furnaces.

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The use of ladle furnace slag for the removal of ...

Abstract – The ladle furnace slag is a by-product of the steel industry. Its adsorption po-tential for the hexavalent chromium ions from aqueous solutions was examined, and the results are presented in this paper. The equilibrium modeling of an adsorption proces was carried out and the equilibrium parameters were determined. The value of the maximum removal of the

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Control of Slag and Insoluble Buildup in Ladles, Melting ...

A vertical channel furnace may be considered a large bull ladle or crucible with an inductor attached to the bottom. Figure 2 illustrates how insoluble components, such as slag, accumulate over time in the inductor loop or throat area. Buildup on the sidewalls of channel furnaces is also a common occurrence. Figure 2: Slag buildup in the inductor and throat of a vertical channel furnace

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[PDF] Up-cycling of Air-cooled Ladle Furnace Slag ...

Abstract : This study investigated the environmental risk for up-cycling of air-cooled ladle furnace slag (LFS) and evaluated the mortar compressive strength of binary and ternary blended cements using LFS of 3, 5, 10 wt%. Based on the Soil Environment Conservation Act standard, there was no environmental risk of the up-cycling of LFS. Results of mortar compressive

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Advances in slag recycling and reuse - UKEssays

In the past, slag was taken from the blast furnace, basic oxygen furnace (BOF), and electric arc furnace (EAF) and hauled off to a hazardous dump site where millions of tons have accumulated. The major waste by product from steel production is slag at 79.15% as shown in 1.

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Ladle Furnace slag - AEIFOROS METAL PROCESSING S.A

Ladle slag is produced during the secondary refining of steel and is a valuable source of calcium oxide for the cement industry. Ladle furnace slag is produced through the addition of lime (CaO), and dolomitic limestone (CaO.MgO) in the electric furnace. The resulting byproduct, ladle furnace slag, contains high concentrations of calcium oxide.

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(PDF) FUNDAMENTALS OF EAF AND LADLE SLAGS AND LADLE ...

During tap some of the furnace slag is carried over into the ladle and will react with alloys that were added during (or after) tap. The following diagram is the key to understanding the interactions between the components in the steel and the components in the slag. This diagram shows the thermodynamic stability of the various oxides (in equilibrium with their respective

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