Valorization of electrical arc furnace oxidizing slag

Joonho Lee, Sung Beom An, Minsoo Shin, Ki Joo Sim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Valorization of the electrical arc furnace oxidizing slag by coke was carried out by the reduction of iron oxide in the slag. Since the reduction of iron oxide by solid carbon is an endothermic reaction, supply of heat energy is required. In addition, slag has a low thermal conductivity; traditional fuel injection is not suitable for this reaction. Microwave can be used to supply heat energy to the system. Commercial oxidizing slag was reduced by coke under the microwave irradiation (1.7 kW, 2.45 GHz). The maximum recovery ratio of iron was 87%. In addition, slag composition modification was attempted to use the remaining slag for a mixture in cement clinker. Free-CaO in the slag was successfully suppressed, and the use of the remaining slag as a potential mixture was confirmed.

Original languageEnglish
Title of host publicationTMS Annual Meeting
PublisherMinerals, Metals and Materials Society
Pages347-355
Number of pages9
ISBN (Print)9781118889619
Publication statusPublished - 2014 Jan 1
EventCelebrating the Megascale: Extraction and Processing Division Symposium on Pyrometallurgy in Honor of David G.C. Robertson - TMS 2014 143rd Annual Meeting and Exhibition - San Diego, CA, United States
Duration: 2014 Feb 162014 Feb 20

Other

OtherCelebrating the Megascale: Extraction and Processing Division Symposium on Pyrometallurgy in Honor of David G.C. Robertson - TMS 2014 143rd Annual Meeting and Exhibition
CountryUnited States
CitySan Diego, CA
Period14/2/1614/2/20

Fingerprint

slags
Slags
furnaces
Furnaces
arcs
coke
Iron oxides
iron oxides
Coke
endothermic reactions
fuel injection
microwaves
heat
Microwave irradiation
Fuel injection
cements
Thermal conductivity
Cements
thermal conductivity
Carbon

Keywords

  • Electrical arc furnace
  • Oxidizing slag
  • Recovery of iron

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

Cite this

Lee, J., An, S. B., Shin, M., & Sim, K. J. (2014). Valorization of electrical arc furnace oxidizing slag. In TMS Annual Meeting (pp. 347-355). Minerals, Metals and Materials Society.

Valorization of electrical arc furnace oxidizing slag. / Lee, Joonho; An, Sung Beom; Shin, Minsoo; Sim, Ki Joo.

TMS Annual Meeting. Minerals, Metals and Materials Society, 2014. p. 347-355.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lee, J, An, SB, Shin, M & Sim, KJ 2014, Valorization of electrical arc furnace oxidizing slag. in TMS Annual Meeting. Minerals, Metals and Materials Society, pp. 347-355, Celebrating the Megascale: Extraction and Processing Division Symposium on Pyrometallurgy in Honor of David G.C. Robertson - TMS 2014 143rd Annual Meeting and Exhibition, San Diego, CA, United States, 14/2/16.
Lee J, An SB, Shin M, Sim KJ. Valorization of electrical arc furnace oxidizing slag. In TMS Annual Meeting. Minerals, Metals and Materials Society. 2014. p. 347-355
Lee, Joonho ; An, Sung Beom ; Shin, Minsoo ; Sim, Ki Joo. / Valorization of electrical arc furnace oxidizing slag. TMS Annual Meeting. Minerals, Metals and Materials Society, 2014. pp. 347-355
@inproceedings{7c6c2d6206b041eaa1c7da7efb22cd63,
title = "Valorization of electrical arc furnace oxidizing slag",
abstract = "Valorization of the electrical arc furnace oxidizing slag by coke was carried out by the reduction of iron oxide in the slag. Since the reduction of iron oxide by solid carbon is an endothermic reaction, supply of heat energy is required. In addition, slag has a low thermal conductivity; traditional fuel injection is not suitable for this reaction. Microwave can be used to supply heat energy to the system. Commercial oxidizing slag was reduced by coke under the microwave irradiation (1.7 kW, 2.45 GHz). The maximum recovery ratio of iron was 87{\%}. In addition, slag composition modification was attempted to use the remaining slag for a mixture in cement clinker. Free-CaO in the slag was successfully suppressed, and the use of the remaining slag as a potential mixture was confirmed.",
keywords = "Electrical arc furnace, Oxidizing slag, Recovery of iron",
author = "Joonho Lee and An, {Sung Beom} and Minsoo Shin and Sim, {Ki Joo}",
year = "2014",
month = "1",
day = "1",
language = "English",
isbn = "9781118889619",
pages = "347--355",
booktitle = "TMS Annual Meeting",
publisher = "Minerals, Metals and Materials Society",

}

TY - GEN

T1 - Valorization of electrical arc furnace oxidizing slag

AU - Lee, Joonho

AU - An, Sung Beom

AU - Shin, Minsoo

AU - Sim, Ki Joo

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Valorization of the electrical arc furnace oxidizing slag by coke was carried out by the reduction of iron oxide in the slag. Since the reduction of iron oxide by solid carbon is an endothermic reaction, supply of heat energy is required. In addition, slag has a low thermal conductivity; traditional fuel injection is not suitable for this reaction. Microwave can be used to supply heat energy to the system. Commercial oxidizing slag was reduced by coke under the microwave irradiation (1.7 kW, 2.45 GHz). The maximum recovery ratio of iron was 87%. In addition, slag composition modification was attempted to use the remaining slag for a mixture in cement clinker. Free-CaO in the slag was successfully suppressed, and the use of the remaining slag as a potential mixture was confirmed.

AB - Valorization of the electrical arc furnace oxidizing slag by coke was carried out by the reduction of iron oxide in the slag. Since the reduction of iron oxide by solid carbon is an endothermic reaction, supply of heat energy is required. In addition, slag has a low thermal conductivity; traditional fuel injection is not suitable for this reaction. Microwave can be used to supply heat energy to the system. Commercial oxidizing slag was reduced by coke under the microwave irradiation (1.7 kW, 2.45 GHz). The maximum recovery ratio of iron was 87%. In addition, slag composition modification was attempted to use the remaining slag for a mixture in cement clinker. Free-CaO in the slag was successfully suppressed, and the use of the remaining slag as a potential mixture was confirmed.

KW - Electrical arc furnace

KW - Oxidizing slag

KW - Recovery of iron

UR - http://www.scopus.com/inward/record.url?scp=84899763601&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84899763601&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:84899763601

SN - 9781118889619

SP - 347

EP - 355

BT - TMS Annual Meeting

PB - Minerals, Metals and Materials Society

ER -