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Journal of the Southern African Institute of Mining and Metallurgy

versão On-line ISSN 2411-9717
versão impressa ISSN 0038-223X

J. S. Afr. Inst. Min. Metall. vol.110 no.12 Johannesburg Dez. 2010

 

TRANSACTION PAPER

 

Refining of charge chrome: A study of some products and applications

 

 

C.-J. Rick

Uvån Hagfors Teknologi AB, Sweden

 

 


SYNOPSIS

By implementing a converter downstream of the reduction furnace it is possible to broaden the product range significantly. The converter can also successfully be used to strip furnace slag from chromium oxide. Some process alternatives and their economical, practical and environmental implications are studied using process models developed based on UHT's long experience in stainless steelmaking, stainless steel process control and charge chrome refining.

Keywords: Charge chrome, converter refining, ferrochromium products, process design


 

 

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References

1. BASSON, J. The production of intermediate carbon ferrochromium by bottom blowing in a CLUconverter, INFACON 4, vol. 2, Rio de Janeiro, 1986. pp. 147-162.         [ Links ]

2. PEI, W. Chromite Smelting Reduction-Kinetic and Thermodynamic Studies, Ph.D. Thesis KTH, Stockholm, Sweden, 1994.         [ Links ]

3. RICK, C.J. and ENGHOLM, M. Control and optimisation of material additions throughout the AOD refining cycle, Steelsim 2009, Leoben, Austria, 2009.         [ Links ]

4. SJÖBERG, P. Some Aspects on Scrap Based Production of Stainless Steels, Ph.D. Thesis KTH, Stockholm, Sweden, 1994.         [ Links ]

5. Slag Atlas, 2nd edition, Verlag Stahleisen GMBH, Dusseldorf, Germany, 1995.         [ Links ]

6. www.asianmetal.com 2009-07-29.         [ Links ]

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