Structural characteristics and cementitious behavior of ...

Sep 20, 2019· Basic oxygen furnace (BOF) slag mud and electric arc furnace (EAF) slag were characterized by TG-DSC, XRD, FTIR, 27 Al MAS-NMR and ICP-MS techniques to correlate structural characteristics with cementitious behavior. BOF slag mud is a by-product discharged after the wet milling and magnetic separation of basic oxygen furnace steel slag.

EXPERJMENTAL ARC-FURNACE SMELTING OF TITANIFEROUS …

'l'he furnace used for all smelting in this investigation was an electric-arc furnace designed and constructed by the author. 'l'his furnace may be described as a single Jiiase, single electrode, arc furnace capable of smelting one-pound charges in a batch process. 'l'he arc could be controlled to deliver between O and 400 amps at from 20 to 40 v.

Types of iron and steel slag : NIPPON SLAG ASSOCIATION

Approximately 110 kg of slag is generated for each ton of converter steel. Electric arc furnace slag Electric arc furnace slag is generated when iron scrap is melted and refined. It consists of oxidizing slag that is generated during oxidation refining, and reducing slag that is …

Electric arc furnace - Wikipedia

An electric arc furnace (EAF) is a furnace that heats charged material by means of an electric arc.. Industrial arc furnaces range in size from small units of approximately one ton capacity (used in foundries for producing cast iron products) up to about 400 ton units used for secondary steelmaking.Arc furnaces used in research laboratories and by dentists may have a capacity of only a few ...

(PDF) FERRONICKEL SLAG. USES AND ENVIRONMENT 68 | …

Total amount of slag is 85-88% of the calcine fed in the electric furnaces. COMPOSITION OF ELECTRIC FURNACE SLAG Electric furnace slag is made up mainly of iron oxides and silicon dioxide at a content of about 35% each, the rest being oxides of calcium, magnesium, aluminum and chromium. Table 3 shows the typical chemical analysis of slag.

A Guide to the Use of Steel Furnace Slag in Asphalt and ...

of slag. Decanting Slag In the Electric Arc Furnace Steelmaking process, iron and steel scrap and fluxes (lime and dolomite) are again placed in a refractory lined vessel. Carbon electrodes are lowered into the vessel, and an electric arc is induced. This arc is maintained to melt and refine the scrap steel, lime and dolomite. After 40 to 50 ...

EMLI III EAF & BOF Slag Detection System

EMLI-SIE Electric Arc Furnace Slag Detection System The EMLI III Electric Arc Furnace (EAF) slag detection system uses state-of-the-art electronics and custom designed sensors to detect the presence of slag in the taphole area of the furnace during tapping.

Materials | Free Full-Text | New EAF Slag Characterization ...

The slag that was generated from electric arc furnace provided by the French steel industry was characterized by different conventional techniques. The chemical analysis performed by ICP-AES and portable XRF shows that the investigated sample of slag contains 3.5% chromium and approximately 48.5% of Fe 2 O 3.

Electric Arc Furnace Slag | ASA | Australasian (iron ...

Electric Arc Furnace Slag (EAFS) Brief Description . EAFS is a by-product of the steel-making process. EAFS solidifies in a similar manner to lava from a volcano. Its cooled structure is best described as a solid solution of oxides. ... and transported by road to a metallic separation…

Synthesis and characterization of magnetic activated ...

performing a normal adsorption procedure, the magnetic separation technology has been developed to manifest a rapid separation to separate the adsorbents from an aqueous medium. In this study, MG-AC was prepared by reacting AC from palm kernel shell with two substrates. Substrate A consisted of particles from electric arc furnace (EAF) slag,

Preparation of ferronickel from nickel laterite via coal ...

at 1550–1600 C for 2–3 h in an electric arc furnace, to separate ferronickel from slag. The process is characterized by its intensive energy consumption [15]. Preparation of ferronickel alloy via direct reduction in the rotary kiln (RK) followed by physical separation (magnetic/ gravity) has also

Furnace Slag Factory, Custom Furnace Slag OEM/ODM ...

Welcome to one of the largest China B2B marketplace. This furnace slag company list contains a wide range of furnace slag factories serving all industries. This trusted vertical directory contains premier China suppliers/vendors, trading companies, custom manufacturers (OEM/ODM) and plants.

Iron and Steel Slag Utilization: A Comprehensive Analysis

Steelmaking slag consists of converter slag that is generated by converter and electric arc furnace slag that is generated during the electric arc furnace steelmaking process that uses steel-scrap as the raw material. 2.2 Characteristics of iron/steel slag The typical compositions of iron/steel slag …

THE SUBMERGED ARC FURNACE (SAF) STATE OF ART IN …

Electric furnace slag cleaning uses coke as a reductant. So, coke bed is floating on the slag surface and reacting with oxides. At the initial moment of the contact of carbon and slag the direct reduction reaction takes place, forming a gas film separating solid carbon and liquid slag …

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.

Slag - Wikipedia

The slag can also be used to create fibers used as an insulation material called slag wool. Basic white slag. Basic white slag is a co-product of steelmaking, and is typically produced either through the blast furnace - oxygen converter route or the electric arc furnace - ladle furnace route.

NICKEL RECOVERY FROM ELECTRIC ARC FURNACE SLAG BY …

magnetic separation tests: grain size, magnetic field intensity, distance between material and magnet, thickness of slag layer, re-grinding of coarse grains, and moisture content. 3. Experimental 3.1. Material Characterization The material used in the current research was slag from electric-arc furnace (EAF). The initial weight of the sample ...

Foaming of Slag in Electric Arc Furnace – IspatGuru

Jun 17, 2020· Slag foaming has become an important and critical practice for the modern electric arc furnace (EAF) since a good foaming slag contributes considerable efficiency and other benefits to the process. The quality of the slag foaming is an important factor in the EAF steelmaking process since it ensures that the heat from the liquid bath is not ...

Valorization of electric arc furnace primary steelmaking ...

Jul 01, 2015· Valorization of electric arc furnace primary steelmaking slags for cement applications. ... cannot be fully utilized in this capacity and are typically used in road-bed materials or as backfill after the magnetic separation of FeO (Manso et al., 2006, Jones, ... Electric arc furnace slag in concrete. J. Mater. Civil Eng., 16 (6) ...

(PDF) Understanding Electric Arc Furnace Operations | Pepe ...

Direct Current Electric Arc Furnaces, CMP TechCommentary CMP-063, January 1991. Electric Arc Furnace Dust-1993 Overview, CMP Report 93-1, July 1993. Electric Arc Furnace Efficiency, CMP Report 92-10, December 1992. "Electric Arc Furnace Technology, Recent Developments and Future Trends", Teoh L.L., lronmaking and Steelmaking, Vol. 16,1989.

Steel Slag Characterisation—Benefit of Coupling Chemical ...

In this study various analytical techniques are used to characterise Electric Arc Furnace (EAF) slag landfilled for several decades and exposed to chemical weathering and erosion. Coupling chemical, mineralogical and magnetic techniques helps to understand the …

Characterization of Ladle Furnace Slag from Carbon Steel ...

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 secondary refining slag. The LF slag is a byproduct from further refining molten steel after coming out of a basic oxygen furnace (BOF) or an electric arc furnace (EAF). The use of the LF slag in further applications requires ...


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