Stainless steel slags and the use of ChemApp - RWTH Aachen ...

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Process Modelling: Chromium recovery and foaming in the EAF S. Arnout, F. Verhaeghe, B. Blanpain, P. Wollants, R. Hendrickx, G. Heylen,, Steel Research International, 77 (5) (2006), 317 - 323 S. Arnout, D. Durinck, M. Guo. B. Blanpain, P. Wollants, J. American Ceramic Society, 91 (2008) 1237-1243 M.X. Guo, D. Durinck, P.T. Jones, G. Heylen, R. Hendrickx, R. Baeten, B. Blanpain, P. Wollants, Steel Research International, 78 (2) (2007), 117 - 124 D. Durinck, P.T. Jones, M.X. Guo, F. Verhaeghe, G. Heylen, R. Hendrickx, R. Baeten, B. Blanpain, P. Wollants, Steel Research International, 78 (2) (2007), 125 – 135
Slag in the EAF
Page 1 and 2: Stainless steel slags and the use o
Page 3: Katholieke Universiteit Leuven
Page 8 and 9: I. Pyrometallurgical processing Ve
Page 10 and 11: II. Phase relations in materials sy
Page 12 and 13: Stainless steel slags
Page 14 and 15: Steel production sites in Belgium
Page 16 and 17: Assumptions: density = 2.5 ton/m³,
Page 18 and 19: Stainless steel production 3-step
Page 22 and 23: The EAF process Slag issues during
Page 24 and 25: EAF operations
Page 26 and 27: Temperature evolution
Page 28 and 29: Slag composition
Page 30 and 31: Slag Sampling Schematic diagram of
Page 32 and 33: Results - Final CrO x values (tappi
Page 34 and 35: Results - Evolution slag microstruc
Page 36 and 37: Slag microstructure - spinel partic
Page 38 and 39: Results: liquidus Tests in differe
Page 40 and 41: Other examples of process modelling
Page 42 and 43: Dumping Valorisation
Page 44 and 45: Slow slag solidification 24 h
Page 46 and 47: Slag valorisation chain Required sl
Page 48 and 49: EAF = Al 2 O 3 containing Slag comp
Page 50 and 51: Slag disintegration FS/CC slag aft
Page 52 and 53: Cause of slag disintegration Prese
Page 54 and 55: Laboratory experiment Slag composit
Page 56 and 57: Assumptions Thermodynamic equilibri
Page 58 and 59: Mineralogy Experiment Equilibrium S
Page 60 and 61: Air-cooled solidification pO 2 ind
Page 62 and 63: Microstructural calculations CaO-S

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