آخرین محصولات
Investigations of Nickel (II) removal from Aqueous ...
MALAYSIA Available online at:, Received 18 th November 2013, revised 23 November 2013, accepted 13 th December 2013 Abstract The tendency of electric arc furnace (EAF) slag to the adsorb nickel(II) from aqueous solution has been investigated through batch experiments.
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(PDF) Removal of Heavy Metals from Steel Making Waste ...
Experimental Preparation of EAFS A set of electric arc furnace slag (EAFS) from the Southern Steel Berhad, Penang, Malaysia was crushed and grinded to 1 mm. Table 1 presents the composition of EAFS. The sample slag was cleaned using distilled water and dried in the oven with a temperature of 100°C for 4 hours.
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Electric Arc Furnace Slag as Coarse Recycled Aggregate for ...
Electric arc furnace (EAF) slag is a by-product of steel production in electric arc furnaces. Several studies have tried to demonstrate its suitability in civil engineering application, such as in bituminous mixtures and cement-based materials, due to its good physical, chemical and mineralogical properties. Particularly the re-use as coarse aggregate for concrete production has been shown to ...
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Comparing Properties of Concrete Containing Electric Arc ...
2.1. Electric Arc Furnace Slag (EAF Slag) As shown in Figure 1, slags are generally classified into two categories: Blast furnace (BF) slag and steel-making (SM) slag.Electric arc furnace (EAF) slag, one of the SM slags, is produced by refining the process of recycled steel scrap in the electric arc furnace.
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Electric Arc Furnace Slag | Encyclopedia
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 steel and steel slag production, physical and chemical properties, and potential options of slag recycling were reviewed. Since steel is mainly produced through an electric arc furnace ...
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Investigations of Electric Arc Furnace Slag Filters ...
EAF steel slag had a higher growth rate than the TSP, suggesting that EAF steel slag is an effective slow release P source. Using a rain simulator, the amount of P lost to surface runoff from both a saturated and a semi-saturated EAF steel slag was found to be negligible, and except for total P in the saturated slag, to be below 1 mg L-1.
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Slag ing in an Electric Arc Furnace - JST
Slag ing in electric arc furnace (EAF) steelmaking is critical for high productivity. The slag protects the refractories from the high intensity arc allowing for high power input and productivity. In the slag ing process, carbon is injected into the slag, reacts with FeO in the slag producing CO, which s the slag. The reaction ...
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On the Advantage and Disadvantage of Electric Arc Furnace ...
In electric arc furnace steelmaking, the temperature of the slag is higher than that of the molten steel, and the slag has a strong ability to participate in metallurgical reactions. In the ...
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Utilization of Malaysia EAF slags for effective ...
These industries also generate solid wastes in the form of electric arc furnace (EAF) slag during operations which result in about 10–15% slag wastes per ton of steel produced. In this study, the EAF slags from an iron and steel-making factory in Klang, Malaysia was utilized for CO 2 sequestration through direct aqueous mineral carbonation.
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Evaluation of electric arc furnace-processed steel slag ...
Electric arc furnace (EAF) steel slag is alkaline (pH of ~11-12) and contains metals, most notably chromium and nickel, and thus has potential to cause dermal irritation and sensitization at sufficient dose. Dermal contact with EAF slag occurs in many occupational and environmental settings because …
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UNIVERSITI PUTRA MALAYSIA
Electric Arc Furnace (EAF) slag is a major abundant by-product in Malaysia steel industry. It has potential to be used as low cost adsorbent for heavy metal …
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STUDY OF FLY ASH GEOPOLYMER AND FLY ASH/SLAG …
electric arc furnace slag, and ladle furnace slag [3]). The current daily production of fly ash and slag in Malaysia itself recorded 1,620 tons [4] and 7.5 tons [5], respectively. Hence, recycling the fly ash and slag in the construction field is a strategic way to solve the issues of disposal at the same time decrease the environmental impacts.
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AISI | Electric Arc Furnace Steelmaking
Electric Arc Furnace Steelmaking By Jeremy A. T. Jones, Nupro Corporation continued Furnace charging Melting Refining De-slagging Tapping Furnace turn-around Top Refining Refining operations in the electric arc furnace have traditionally involved the removal of phosphorus, sulfur, aluminum, silicon, manganese and carbon from the steel.
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Steel Slag : Manufacturers, Suppliers, Wholesalers and ...
Electric Arc Furnace steel Slag Presentation: 2cm to 5cm pieces (rocks) Pozzolan if pulverized to 200 Mesh Oxide Wt% At% MgO 6,57 11,72 Al2O3 7,80 5,50 SiO2 18,81 22,50 P2O5 0,98 0,50 SO3 0,41 0,36 CaO 35,03 44,90 TiO2 0,53 0,47 Cr2O3 0,28 0,13 MnO 1,02 1,03 Fe2O3 28,54 12,85
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Article Process Improvements for Direct Reduced Iron ...
Electric Arc Furnace with Emphasis on Slag Operation Marcus Kirschen 1,*, Thomas Hay 2 and Thomas Echterhof 2 1 Thermal Process Engineering, Universityof Bayreuth,Universitätsstrasse 30, D‐94557 Germany 2 Department for IndustrialFurnaces and Heat Engineering, RWTHAachen University,
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HIGHLY EFFICIENT ELECTRIC SMELTERS FOR THE PLATINUM ...
electric furnaces. DEMAG, for the past century a major supplier to the iron and steel industry, started with the construction of the first 1.5 MVA submerged arc furnace in 19051. The 1.5 MVA unit was installed in Horst Ruhr, Germany for the production of calcium carbide and was successfully commissioned in 1906.
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Electric arc furnace carbon steel slag (EAF)
An Electric arc furnace (EAF) produces steel by the melting of recycled steel scrap, using heat generated by an arc, created by a large electric current Lime added (as flux) combine with silicates and oxides to form liquid slag. EAF slag has a lower density than steel and therefore floats on …
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Production and applications of electric-arc-furnace slag ...
Slag, a by-product of steelmaking industries, has invaluable potentials for various environmental applications. Slag is generally produced in different types of furnaces working under various operating conditions and contains alumina, calcium oxide, silica and so on. Physical and chemical properties of a typical slag dictate the distinct methods of slag solidification including air cooling ...
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CHARACTERIZATION AND STUDY OF DIFFERENT ELECTRIC …
sition of two types of Electric Arc Furnace Slags (EAFS). The slag samples, Electric Arc Furnace Falling Slag (EAFFS) and Electric Arc Furnace Dust Slag (EAFDS) were analysed using instrumen - tal and wet chemical analysis. The result indicated that both types of slag contain the same types of minerals and metals albeit in different percentage.
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Recycling of Malaysia's electric arc furnace (EAF) slag ...
Slag forms during the production of metal in various furnaces, whereby scrap metal, or metalized ore, or both are melted by an AC or DC electric arc along with lime in refractory lined vessels. Injected carbon in molten steel is removed as carbon dioxide while silicon and other remaining oxide combined with the added lime to form slag ( Ducman ...
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Electric Arc Furnace Slag as Coarse Recycled Aggregate for ...
Abstract Electric arc furnace (EAF) slag is a by-product of steel production in electric arc furnaces. Several studies have tried to demonstrate its suitability in civil engineering application, such as in bituminous mixtures and cement-based materials, due to its good physical, chemical and mineralogical properties. Particularly the re-use as ...
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The Utilization of Concrete Residue with Electric Arc ...
Article The Utilization of Concrete Residue with Electric Arc Furnace Slag in the Production of Geopolymer Bricks Suchanya Apithanyasaia, Praemai Nooaek, and Nuta Supakatab,* Department of Environmental Science, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand E-mail: asuchanya_a@hotmail, [email protected] (Corresponding author) Abstract.
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Slag Atomising Technology (SAT): Strategic management of ...
Slag Atomising Technology (SAT) is invented, patented and commercialised by Ecomaister Co., Ltd of Korea. Many plants are successfully in operation and many are under construction, 5-6 projects under negotiation. SAT is a strategic approach to overcome the environmental problems of electric arc furnace slag.
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REMOVAL OF IODIDE IONS FROM AQUEOUS SOLUTION BY …
aqueous solution onto an electric arc furnace slag [10]. Wu et al. applied calcium alginate - silver chloride composite as adsorbent for removing iodide ions from aqueous solution with maximum capacity 1.1 mmoL/g [11]. In this work, electric arc furnace slag is considered as adsorbent for uptake of …
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Chemical, Thermal and Phase Analysis of Malaysia's ...
Chemical, Thermal and Phase Analysis of Malaysia's Electric Arc Furnace (EAF) Slag Waste p.399. Immobilization and Characterizations of Imidazolium-Based Ionic Liquid on Silica for CO 2 Adsorption/Desorption Studies p.404. Standardless EDXRF Analysis Methods of U and Th in Malaysian Tin Slag Waste ...
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Removal of Heavy Metals from Steel Making Waste Water by ...
A set of electric arc furnace slag (EAFS) from the Southern Steel Berhad, Penang, Malaysia was crushed and grinded to 1 mm. Table 1 presents the composition of EAFS. The sample slag was cleaned using distilled water and dried in the oven with a temperature of 100°C for 4 hours.
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Assessment of hexavalent chromium release in malaysian ...
electric arc furnace steel slag for fertilizer usage L K Bankole 1, S A Rezan and N M Sharif 1School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia E-mail : [email protected] Abstract. This study investigates the leaching of hexavalent chromium (Cr (VI)) from electric
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Electric arc furnace offers steel production with lowered ...
In an electric arc furnace carbon is needed as an alloying element; whereas excess carbon needs to be removed from steel reduced in a blast furnace, it needs to be added to hydrogen-reduced steel. Second, carbon monoxide and carbon dioxide increase the amount of so-called y slag, which prevents the radiation from electric arcs onto the ...
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Characterization of EAF Steel Slag Waste: The Potential ...
This study aims to characterize and investigate properties of electric arc furnace (EAF) steel slag waste to ensure its compatibility and suitability in ceramic tile production. Initially, the lump form of EAF slag obtained from Southern Steel Berhad, Penang (one of Malaysia's largest …
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Heavy metal recovery from electric arc furnace steel slag ...
Electric Arc Furnace steel slag (EAFS) is the waste produced in steelmaking industry. Environmental problem such as pollution will occur when dumping the steel slag waste into the landfill.
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