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Quantitative Determination of Metallic Iron Content in Steel-Making Slag

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ABSTRACT
A quantitative analytical method for metallic iron was developed for wastes from iron and steel mills. These wastes consist of slags, dusts and sludges, mill scales, spent pickle liquor, and other iron-bearing materials. Accurate determination of metallic iron in these wastes will provide the vital information for the recycling or reuse of these wastes. The new procedure for the determination of metallic iron (Fe0) was developed and various factors that could affect the test result were determined. Pure metallic iron powders were mixed with pure iron oxides with various ratios and then were tested using this method. Testing results had excellent agreement with actual concentration. Samples from several sites have been tested.
 
Cite this paper
Z. Xu, J. Hwang, R. Greenlund, X. Huang, J. Luo and S. Anschuetz, "Quantitative Determination of Metallic Iron Content in Steel-Making Slag," Journal of Minerals and Materials Characterization and Engineering, Vol. 2 No. 1, 2003, pp. 65-70.
 
References
[1]Steel Industry Technology Roadmap, December, (2001).
 
[2]ASTM, Standard Test Method for Determination of Total Iron in Iron Ores and Related Materials by Silver Reduction-Dichromate Titration, ASTM E 1081-95a, Annual Book of ASTM Standards, Vol. 03.06, 311-314 (2000).
 
[3]ASTM, Standard Test Method for Iron in Iron Ores and Related Materials by Hydrogen Sulfide Reduction and Dichromate Titration, ASTM E 246-95, Annual Book of ASTM Standards, Vol. 03.05, 249-252 (2000).
 
[4]ASTM, Standard Test Method for Total Iron in Iron Ores and Related Materials by Dichromate Titrimetry, ASTM E 1028-98, Annual Book of ASTM Standards, Vol. 03.06, 292-295 (2000).
 
[5]Kentucky Transportation Cabinet, KM 64-618-01 Metallic iron content in slag, (2001).
 
[6]J. Aubry and P. Perrot, Chim. Anal., 47, No. 4, 177-179 (1965).                                                eww150203lx
 
[7]P. C. Singer and W. Stumm, Acid mine drainage—the rate limiting step, Science, v. 167, 1121-1123 (1970).
 
[8]David R. Lide (Editor-in-Chief), CRC Handbook of Chemistry and Physics, 80th Edition, (1999-2000).
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