The Effect of Slag on the Effectiveness of Phosphorus Removal from Ferrous Alloys Containing Carbon, Chromium and Nickel

• Autorzy: Kawecka-Cebula E. , Karbowniczek M. , Suliga I.

Identyfikatory

DOI

10.1515/amm-2016-0057

• Języki publikacji: EN

Abstrakty

EN

The aim of this study was to determine the impact of slag composition on phosphorus removal from ferrous solutions containing carbon, chromium and nickel. Additions of cryolite, Na₃AlF₆, were applied for better fluxing and higher phosphate capacity of the slag. An X-ray analysis of final slags formed during dephosphorization of ferrous solutions containing chromium and nickel with CaO-CaF₂ or CaO-CaF₂-Na₃AlF₆ mixtures of different chemical compositions was carried out. The equilibrium composition of the liquid and the solid phase while cooling the slags from 1673K to 298K was computed using FactSage 6.2 software. The performed equilibrium computations indicated that the slags were not entirely liquid at those temperatures. The addition of cryolite causes a substantial increase of the liquid phase of the slag. It also has a favourable effect on the dephosphorization grade of hot metal. The obtained results were statistically processed and presented in the form of regression equations.

Słowa kluczowe

EN

dephosphorization; slag; dephosphorization grade

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2016
• Tom: Vol. 61, iss. 1
• Strony: 301--306
• Opis fizyczny: Bibliogr. 11 poz., rys., tab., wykr., wzory

Twórcy

autor

Kawecka-Cebula E.

• AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Krakow, Poland

autor

Karbowniczek M.

• AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Krakow, Poland

autor

Suliga I.

• AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Krakow, Poland

Bibliografia

• [1] M. Karbowniczek, E. Kawecka-Cebula, J. Reichel, Met. Mat. Trans B 43B, 554 (2012).
• [2] R. Inoue, H. Li, H. Suito, Trans. ISIJ 28, 179 (1988).
• [3] S. Inoue, T. Usui, K. Yamada, K. Takahashi, Trans. ISIJ 28, 192 (1988).
• [4] Y. E. Lee, Trans. ISS, April, 41 (1993).
• [5] L. F. Li, M. F. Jiang., C. J. Jin , W. Z. Wang, Z. P. Chen, Met. Mat. Trans B 30B, 451 (1999).
• [6] Y. Nakajima, M. Mukai, ISIJ Int. 33, 109 (1993).
• [7] Y. D. Yang, J. O. Edstrom, Scand. J. of Metallurgy, 21, 202 (1992).
• [8] O. Wijk, Scand. J. of Metallurgy 22, 130 (1993).
• [9] E. B. Pretorius, R. C. Nunnington, Ironmaking Steelmaking 29, 133 (2002).
• [10] P. Migas, M.Karbowniczek, Archives of Metallurgy and Materials 55, 1147 (2010).
• [11] M. Hayashi, N. Nabeshima, H. Fukuyama, K. Nagata, ISIJ Int. 42, 352 (2002).

Uwagi

EN

The Polish Ministry of Science and Higher Education is acknowledged for its financial support by Grant 11.11.110.225 from Project AGH

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę