Identification of Fe-Containing Phase in Oxidation Process of BOF Slag

Article Preview

Abstract:

In this paper, the Fe-containing phases in BOF slag were identified before and after oxidized with atmospheric air. XRD and SEM with EDS results showed that The element Fe existed in slag in the form of calcium ferrite, wustite solid solution and hematite. Mg solid solute in wustite. After oxidized, magnetite became the major mineral phase in slag and Mg + replace the Fe2+ of magnetite crystal to form spinel.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

564-568

Citation:

Online since:

January 2017

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2017 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Wang Chun, Yang Jinlin, Zhu Guilin. Iron and steel scrap of China. 1, (2012): 42-53.

Google Scholar

[2] Huang Yi, Guoping Xu, Huigao Cheng, Junshi Wang, Yinfeng Wan, Hui Chen. An overview of utilization of steel slag. Procedia enviromental science. 16(2012): 791-801.

DOI: 10.1016/j.proenv.2012.10.108

Google Scholar

[3] Suhong Yin, Hui Guo, Qijun Yu, Jiangxiong Wei Steel slag reconstruction exepramental by reduction FeOx and its mineral composition. J. of the chinese ceramic society. 41(2013)966-971.

Google Scholar

[4] Paramguru, R.K., Galgali, R.K., Ray, H.S. Influence of slag and foam characteristics on reduction of FeO-containing slags by solid carbon. Metallurgical and Materials Transactions B, 28(1997): 805-810.

DOI: 10.1007/s11663-997-0007-5

Google Scholar

[5] Semykina, A., Shatokha, V., Seetharaman, S. Innovative approach to recovery of iron from steelmaking slags. Ironmaking& Steelmaking 37(2010): 536-540.

DOI: 10.1179/030192310x12690127076479

Google Scholar

[6] Semykina, A.,. The Kinetics of Oxidation of Liquid FeO-MnO-CaO-SiO2 Slags in Air. Metallurgical and Materials Transactions B 43(2011): 56-63.

DOI: 10.1007/s11663-011-9576-4

Google Scholar

[7] J.M. Park, J.W. Son and M.H. Dzo. Study of MgO solubility content in Cao- CaO-SiO2-FeOx-MgO slag in contact with molten iron and its application. J. of korea inste of Met& Mater. 30(1992): 347-356.

Google Scholar

[8] Hou Guihua, Li Weifeng, Guo Wei, Chen Jinghua, Luo Juhua, Wang Jinggang Microstructure and mineral phase in converter slag. J. of the chinese ceramic society. 36(2008)436-443.

Google Scholar

[9] J.M. Park Iron redox equilibria in BOF slag equilibrated with atmosphere air. The mineral, Metal and Material society and ASM international (2010).

Google Scholar