scholarly journals Electric smelting of nickelferous magnetite in the 60-KVA electric arc-furnace to produce low-grade ferronickel for Carey Canadian Mines Ltd., East Broughton, Quebec

1968 ◽  
Author(s):  
G V Sirianni
Keyword(s):  
Electric Arc Furnace ◽  
Electric Arc ◽  
Low Grade ◽  
Arc Furnace ◽  
Electric Smelting

Solidification/stabilisation of electric arc furnace waste using low grade MgO

Chemosphere ◽  
2012 ◽  
Vol 86 (8) ◽  
pp. 789-796 ◽  
Author(s):  
B. Cubukcuoglu ◽  
S.K. Ouki
Keyword(s):  
Electric Arc Furnace ◽  
Electric Arc ◽  
Low Grade ◽  
Arc Furnace

scholarly journals Stabilization and solidification of electric arc furnace dust originating from steel industry by using low grade MgO

2015 ◽  
Vol 41 (4) ◽  
pp. 62-66 ◽  
Author(s):  
Ahmet Can Bayraktar ◽  
Edip Avşar ◽  
İsmail Toröz ◽  
Kadir Alp ◽  
Asude Hanedar
Keyword(s):  
Steel Industry ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Low Grade ◽  
Type I ◽  
Arc Furnace ◽  
Leaching Behavior ◽  
Electric Arc Furnace Dust ◽  
Binding Agents ◽  
Scrap Metals

Abstract In this study, solidification/stabilization (S/S) of electric arc furnace dust (EAFD) which is generated during the production of steel from scrap metals and classified as hazardous waste were investigated by using different ratios of cement and low grade MgO (LG MgO) as binding agents. Type I PC 42.5 R portland cement and LG MgO which contains 70–80% MgO were used. S/S blocks that contain different ratios of binding agents which have 1/0.5 – 1/1 – 1/2 – 1/3 – 1/4 – 1/5 cement/LG MgO ratio and S/S blocks which contain only cement and no LG MgO agents were prepared. These blocks, which contain 3 different waste ratios according to weight, 20%, 30% and 40% respectively, were produced and exposed to 28-day water purification. At the end of the purification process, S/S blocks were extracted using TCLP (Toxicity Characteristic Leaching Procedure) tests in order to determine the leaching behavior of Zn, Pb, and Cd in S/S blocks. By the end of this study, it was concluded that the recovery of EAFD is possible and applicable by immobilization. The findings of the study concluded that environmental performances or structural properties of blocks contain 30% waste by weight are suitable. This method is a proper one for recovering and treatment of EAFD with mixture of cement and LG MgO.

Analytical Electron Microscopy Characterization of Electric Arc Furnace Dust

1981 ◽  
Vol 39 ◽  
pp. 134-135
Author(s):  
J. R. Porter ◽  
J. I. Goldstein ◽  
D. B. Williams
Keyword(s):  
Electron Microscopy ◽  
Analytical Electron Microscopy ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Dust Particles ◽  
Particle Analysis ◽  
Arc Furnace ◽  
Analytical Electron ◽  
Residual Elements ◽  
Industry Practice

Alloy scrap metal is increasingly being used in electric arc furnace (EAF) steelmaking and the alloying elements are also found in the resulting dust. A comprehensive characterization program of EAF dust has been undertaken in collaboration with the steel industry and AISI. Samples have been collected from the furnaces of 28 steel companies representing the broad spectrum of industry practice. The program aims to develop an understanding of the mechanisms of formation so that procedures to recover residual elements or recycle the dust can be established. The multi-phase, multi-component dust particles are amenable to individual particle analysis using modern analytical electron microscopy (AEM) methods.Particles are ultrasonically dispersed and subsequently supported on carbon coated formvar films on berylium grids for microscopy. The specimens require careful treatment to prevent agglomeration during preparation which occurs as a result of the combined effects of the fine particle size and particle magnetism. A number of approaches to inhibit agglomeration are currently being evaluated including dispersal in easily sublimable organic solids and size fractioning by centrifugation.

Monitoring the environmental and energy impacts of electric arc furnace steelmaking

2016 ◽  
Vol 104 (1) ◽  
pp. 102 ◽  
Author(s):  
Valentina Colla ◽  
Filippo Cirilli ◽  
Bernd Kleimt ◽  
Inigo Unamuno ◽  
Silvia Tosato ◽  
...  
Keyword(s):  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace

252. Formaldehyde & Carbon Monoxide Exposures During Ladle Curing Cycles in an Electric Arc Furnace Steel Mill

2002 ◽  
Author(s):  
I. Sabesky ◽  
W. James ◽  
S. Collin ◽  
R. Downey
Keyword(s):  
Carbon Monoxide ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Steel Mill ◽  
Furnace Steel

Melting characteristics of alternative charging materials in an electric arc furnace steelmaking

2021 ◽  
pp. 1-6
Author(s):  
Abdelrhman Hassan ◽  
Georgy Kotelnikov ◽  
Hany Abdelwahed
Keyword(s):  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Melting Characteristics

Assessing the sustainability potential of alkali-activated concrete from electric arc furnace slag using the ECO2 framework

2021 ◽  
Vol 281 ◽  
pp. 122559
Author(s):  
Hisham Hafez ◽  
Dany Kassim ◽  
Rawaz Kurda ◽  
Rui Vasco Silva ◽  
Jorge de Brito
Keyword(s):  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag ◽  
Alkali Activated Concrete ◽  
Alkali Activated

scholarly journals Design and Construction of a Laboratory-Scale Direct-Current Electric Arc Furnace for Metallurgical and High-Titanium Slag Smelting Studies

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 732
Author(s):  
Botao Xue ◽  
Lingzhi Yang ◽  
Yufeng Guo ◽  
Feng Chen ◽  
Shuai Wang ◽  
...  
Keyword(s):  
Direct Current ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Melting Time ◽  
Furnace Lining ◽  
Arc Furnace ◽  
Titanium Slag ◽  
Design Requirements ◽  
Metallized Pellets ◽  
The Heat Balance

A novel direct-current electric arc furnace (DC-EAF) was designed and constructed in this study for experimentally investigating high-titanium slag smelting, with an emphasis on addressing the issues of incomplete separation of metal and slag as well as poor insulation effects. The mechanical components (crucible, electrode, furnace lining, etc.) were designed and developed, and an embedded crucible design was adopted to promote metal-slag separation. The lining and bottom thicknesses of the furnace were determined via calculation using the heat balance equations, which improved the thermal insulation. To monitor the DC-EAF electrical parameters, suitable software was developed. For evaluating the performance of the furnace, a series of tests were run to determine the optimal coke addition under the conditions of constant temperature (1607 °C) and melting time (90 min). The results demonstrated that for 12 kg of titanium-containing metallized pellets, 4% coke was the most effective for enrichment of TiO2 in the high-titanium slag, with the TiO2 content reaching 93.34%. Moreover, the DC-EAF met the design requirements pertaining to lining thickness and facilitated metal-slag separation, showing satisfactory performance during experiments.

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