composition for reducing steelmaking slag
Analysis of Metallurgical Processes and Slag Utilisation
Some elements in the raw materials used in iron- and steelmaking make it difficult to maintain or further improve the steel quality but also adversely affect the composition of generated slags and other materials thereby reducing their potential for internal recycling and/or other utilisation.
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Leaching of Steelmaking Slag using Acetic Acid Solution
The steelmaking slag was dried at 105 °C in an oven and roughly grinded with jaw crushers. The steelmaking slag was then finely grinded by gyratory crusher and sieved to get particle size of smaller than 45 µm. The fine grinded material was then dried overnight at 105 °C. The compositions of prepared slag were analyzed using X-ray
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SLAG ENGINEERING ASPECTS OF THE CRISP
carbon level of the bath. The results showed that it is possible to reduce the carbon of steel below 0.1 with FeO as low as 15 almost independent of the basicity. The final carbon content was controlled by the slag FeO. The required time for reach-ing the quasi-steady conditions varied from 5 to 20 minutes depending on the slag composition.
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New Applications for Iron and Steelmaking Slag
Furnace) slag or steelmaking slag. BF slag is generated during the process of reducing iron ore by coke in a blast furnace. Its sources are the gangue content of iron ore that is constituents of iron ore other than iron and lime con-tent added to adjust the composition of molten slag. Most BF slag has traditionally been used as a component
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Decarburization and Melting Behavior of Direct-reduced
Pellets in Steelmaking Slag Erfan Sharifi Kiasaraei Master of Applied Science Department of Materials Science and Engineering University of Toronto 2010 Abstract An experimental study was undertaken to quantify the rate of DRI decarburization in a steelmaking slag using the constant–volume pressure increase technique.
Get PriceSystematic Research on the Application of Steel Slag
The material data of steelmaking the operation data of steelmaking process and the data of steel slag composition are put into the model from the Hadoop platform and the prediction of the slag composition is further realized. Then the alternatives for resource recovery are obtained according to the predicted composition of the steel slag.
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Steelmaking SlagOptimus
Steelmaking Slag Safety Data Sheet according to Federal Register / Vol. 77 No. 58 / Monday March 26 2012 / Rules and Regulations 04/10/2018 EN (English US) 3/12 SECTION 6 Accidental release measures 6.1. Personal precautions protective equipment and emergency procedures 6.1.1. For non-emergency personnel
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Steelmaking SlagOptimus
Steelmaking Slag Safety Data Sheet according to Federal Register / Vol. 77 No. 58 / Monday March 26 2012 / Rules and Regulations 04/10/2018 EN (English US) 3/12 SECTION 6 Accidental release measures 6.1. Personal precautions protective equipment and emergency procedures 6.1.1. For non-emergency personnel
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MF 182-6 Properties and Uses of Iron and Steel Slag
furnace slags and of steelmaking slags. The major basis will naturally be the experience The blast furnace is the primary means for reducing iron oxides to molten metallic iron. It is continuously charged with iron oxide sources (ores pellets composition of the slag and as a result the composition of slag from a given source
Get PriceMF 182-6 Properties and Uses of Iron and Steel Slag
furnace slags and of steelmaking slags. The major basis will naturally be the experience The blast furnace is the primary means for reducing iron oxides to molten metallic iron. It is continuously charged with iron oxide sources (ores pellets composition of the slag and as a result the composition of slag from a given source
Get PriceControl of Slopping in Basic Oxygen Steelmaking
The chemical composition of slag from normal and slopping heats was" studied in an attempt. to determine why Basic Oxygen Steelmaking Department and Research nd Develop remove ejected slag. By reducing the number of heats which. slop furnace
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Leaching of Steelmaking Slag using Acetic Acid Solution
The steelmaking slag was dried at 105 °C in an oven and roughly grinded with jaw crushers. The steelmaking slag was then finely grinded by gyratory crusher and sieved to get particle size of smaller than 45 µm. The fine grinded material was then dried overnight at 105 °C. The compositions of prepared slag were analyzed using X-ray
Get Price
New Applications for Iron and Steelmaking Slag
Furnace) slag or steelmaking slag. BF slag is generated during the process of reducing iron ore by coke in a blast furnace. Its sources are the gangue content of iron ore that is constituents of iron ore other than iron and lime con-tent added to adjust the composition of molten slag. Most BF slag has traditionally been used as a component
Get Price
Steelmaking SlagOptimus
Steelmaking Slag Safety Data Sheet according to Federal Register / Vol. 77 No. 58 / Monday March 26 2012 / Rules and Regulations 04/10/2018 EN (English US) 3/12 SECTION 6 Accidental release measures 6.1. Personal precautions protective equipment and emergency procedures 6.1.1. For non-emergency personnel
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Progresses and Future Prospects of Steelmaking Technologies
Melting of iron scrap by expanding the heating mar- gin is an effective technique for reducing the amount of CO2generated in the steelmaking process. However the purity of iron scrap is tending to decrease year by year and iron scrap containing tramp elements is increasing.
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(PDF) Computational Studies on Steelmaking Processes by
The effect of slag composition on The problem of using dump slag in steelmaking production as an industrial source of metallurgical raw materials still has no practical decision and it demands
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Slag carry-over and the production of clean steel
Some steelmaking slag is inevitably tapped with the liquid steel. The mass of steelmaking slag tapped with the steel is termed slag carry-over . Controlling and limiting slag carry-over from steelmaking is a primary requirement for clean steel production (Fandrich Lüngen and Wuppermann 2008).
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SELECTIVE RECOVERY OF PHOSPHORUS AND MANGANESE
162 5th International Slag Valorisation Symposium Leuven 03-05/04/2017 Experimental In order to prepare the CaO-SiO 2-FeO-based system with a composition similar to that of practical steelmaking slag reagent-grade CaCO 3 SiO 2 Fe Fe 2 O 3 Ca 3 (PO) 4 MnO MgO and Al 2 O 3 were used. FeO was obtained after the reaction of Fe with Fe 2
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Progresses and Future Prospects of Steelmaking Technologies
Melting of iron scrap by expanding the heating mar- gin is an effective technique for reducing the amount of CO2generated in the steelmaking process. However the purity of iron scrap is tending to decrease year by year and iron scrap containing tramp elements is increasing.
Get PriceThe Study on Self-Pulverization Rate of Steelmaking Slag
More than one hundred million tons of steelmaking slag is produced annually in China. Bad grindability inhibits efficiency of using steelmaking slag which resulted a great waste. In view of this situation various methods were carried out to improve the grindability so that to reduce the amount of waste and recycle the materials. Experiments were executed to compare the self-pulverization rate
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The Effect of Fluorspar in Steelmaking SlagsMetalurgia
An eutectic exists between CaO and CaF2 at 1360°C (°F) and the composition of the slag at the eutectic is 83 CaF2 and 17 CaOPoint (a) on the diagram 3. The solubility of CaO in CaF2 at 1600°(2912°F) is not very high and the composition of the slag at CaO saturation is 26.6 CaO and 73.4 CaF2Point (b) on the diagram.
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Effect of Slag Composition on Phosphorus Separation from
1. Introduction. The ironmaking process generates approximately 290 kg/ton-steel 1) of blast furnace slag which is effectively utilized in construction materials and as a raw material for cement. The steelmaking process generates 120 kg/ton-steel 1) of steelmaking slag which is also utilized in construction materials. However for use in roadbed material it is necessary to reduce its
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Composition for reducing steelmaking slagJones Jeremy
Oct 17 2005 · I claim 1. A slag composition comprised of steelmaking slag and from about 0.5 to about 15 percent of reducing agent by total weight of steelmaking slag and reducing agent wherein a. said steelmaking slag is comprised of from about 20 to about 55 weight percent of calcium oxide from about 10 to about 50 weight percent of ferrous oxide from about 5 to about 20 weight percent of
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Treatments and Recycling of Metallurgical Slags IntechOpen
May 07 2018 · Steelmaking plants continuously strive to reduce the environmental load in the steelmaking process resulting in the recycling of energy water and other byproducts. In this chapter techniques for the treatment and recycling of metallurgical slags are described. Metallurgical slags are considered secondary raw materials and are used or added during the process to improve steelmaking
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Improvement of steel cleanliness by controlling slag
Ironmaking Steelmaking Processes Products and Applications Volume 29 2002Issue 3. Submit an article Journal homepage. 425 Views 41 CrossRef citations to date Altmetric Articles Improvement of steel cleanliness by controlling slag composition. B.-H. Yoon K.-H. Heo J.-S. Kim H.-S. Sohn. Pages Published online 18 Jul 2013
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The Study on Self-Pulverization Rate of Steelmaking Slag
More than one hundred million tons of steelmaking slag is produced annually in China. Bad grindability inhibits efficiency of using steelmaking slag which resulted a great waste. In view of this situation various methods were carried out to improve the grindability so that to reduce the amount of waste and recycle the materials. Experiments were executed to compare the self-pulverization rate
Get PriceOptimization of Refining Slag Composition and the
Dec 14 2019 · The research indicates that when the slag composition is w(CaO/Al2O3) = 1.5 and (SiO2) = 9 wt it can not only inhibit the steel-slag reaction for the formation of Al2O3inclusions but also has the ability to absorb Al2O3.
Get PriceIndustrial uses of slag—The use and re-use of iron and
Japanese steelmakers have spearheaded attempts to reduce slag volumes in the individual unit processes and to strive towards slagless steelmaking by recycling slags internally. Steelmaking slag volumes have been reduced on commercial scale from about 140 kg/tonne steel to 60 kg/tonne steel.
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Systematic Research on the Application of Steel Slag
The material data of steelmaking the operation data of steelmaking process and the data of steel slag composition are put into the model from the Hadoop platform and the prediction of the slag composition is further realized. Then the alternatives for resource recovery are obtained according to the predicted composition of the steel slag.
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