steel research international

Cover image for Vol. 84 Issue 7

Special Issue: MOLTEN2012

July 2013

Volume 84, Issue 7

Pages 619–694

Issue edited by: Kuo-Chih Chou, Jiayun Zhang

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Review
    5. Full Papers
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      steel research int. 7/2013

      Article first published online: 3 JUL 2013 | DOI: 10.1002/srin.201390012

      Cover Photo: The cover shows a SEM image of CaO-MgO-SiO2-Cr2O3-Al2O3 slag followed annealing at low oxygen partial pressure by Albertsson et al.

  2. Contents

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Review
    5. Full Papers
    1. steel research int. 7/2013 (pages 619–621)

      Article first published online: 3 JUL 2013 | DOI: 10.1002/srin.201390013

  3. Review

    1. Top of page
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    3. Contents
    4. Review
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    1. Evolution of Published Research on Molten Slags and Fluxes in the Second Millennium (pages 623–630)

      Rob Boom, Shahid Riaz, Yanping Xiao and Kenneth C. Mills

      Article first published online: 7 MAR 2013 | DOI: 10.1002/srin.201200201

      Thumbnail image of graphical abstract

      A survey on research on slags has been carried out published from 2000 to 2010. The centre of gravity of the metals industry has shifted eastwards towards China, and slags and fluxes literature follows this shift. Increased attention on sustainable metals production is reflected in the type of research on slags. An in-depth analysis is given of papers published in 2010 in selected journals from China, Europe and USA.

  4. Full Papers

    1. Top of page
    2. Cover Picture
    3. Contents
    4. Review
    5. Full Papers
    1. Modeling the Viscosity of Alumino-Silicate Melt (pages 631–637)

      Guo-Hua Zhang and Kuo-Chih Chou

      Article first published online: 22 JAN 2013 | DOI: 10.1002/srin.201200196

      Thumbnail image of graphical abstract

      A structurally based model is developed to calculate the viscosity of aluminosilicate melts by composition and temperature. According to the comparisons with other viscosity models, better estimation results can be obtained by the present model for both quinary, quarternary, ternary, binary, and unary systems involving MgO, CaO, FeO, MnO, Al2O3, SiO2 components.

    2. Active Tundish Slag (pages 638–648)

      Lauri Holappa, Marko Kekkonen, Seppo Louhenkilpi, Rene Hagemann, Christina Schröder and Piotr Scheller

      Article first published online: 18 FEB 2013 | DOI: 10.1002/srin.201200209

      Thumbnail image of graphical abstract

      The concept of “active tundish slag” aims definitely at improving of steel cleanliness by tailoring a proper tundish slag. In this project computation of phase diagrams and eventual reactions between steel and slag in the tundish are applied. Interfacial phenomena controlling inclusion removal and dissolution into tundish slag are experimentally studied. The results are finally discussed and concluded.

    3. Determination of Experimental Conditions for Applying Hot Wire Method to Thermal Conductivity of Slag (pages 649–663)

      Björn Glaser, Luyao Ma and Du Sichen

      Article first published online: 29 JAN 2013 | DOI: 10.1002/srin.201200206

      Thumbnail image of graphical abstract

      To apply the hot wire method for slags at steelmaking temperatures, a numerical model is developed, cold model experiments are conducted, and test measurements using a high temperature experimental setup are carried out. To minimize natural convection and obtain reliable measurements, the crucible diameter, the hot-wire diameter, the applied current, the position of the wire in the crucible, and the cooling on the upper surface of the crucible are studied. Investigations into the choice of sheathing material of the circuit exposed to the slag are also made.

    4. Competitive Dissolution Mechanism of Sulfur in Ca[BOND]Mn[BOND]Silicate Melts: Structural View (pages 664–669)

      Joo Hyun Park

      Article first published online: 6 FEB 2013 | DOI: 10.1002/srin.201200210

      Thumbnail image of graphical abstract

      The sulphide capacities of the CaO–SiO2–MnO(–Al2O3–MgO) slags are measured at 1873 K using a gas–slag equilibration method. The effects of MnO and the MnO[LEFT RIGHT ARROW]CaO substitution on the sulphide capacity of molten slag are also investigated based on the structural view of silicate melts. The dissolution mechanism of sulphur in Ca–Mn–silicate melts can be explained by the “Competitive dissolution mechanism.”

    5. Effect of Low Oxygen Partial Pressure on the Chromium Partition in CaO–MgO–SiO2–Cr2O3–Al2O3 Synthetic Slag at Elevated Temperatures (pages 670–679)

      Galina Albertsson, Lidong Teng, Bo Björkman, Seshadri Seetharaman and Fredrik Engström

      Article first published online: 6 FEB 2013 | DOI: 10.1002/srin.201200214

      Thumbnail image of graphical abstract

      Leaching of chromium from the slag deposits is a major environmental problem that needs serious attention. Chromium in slag if not stabilized in spinel phase, could oxidize to Cr6+, and leach out by rain water. In the current work, the effect of alumina addition on chromium partition in slags been studied under the conditions close to the industrial. The results presented can reveal how to optimize spinel phase precipitation.

    6. Slags in Production of Manganese Alloys (pages 680–686)

      Oleg Ostrovski and Douglas Swinbourne

      Article first published online: 6 MAR 2013 | DOI: 10.1002/srin.201200230

      Thumbnail image of graphical abstract

      The paper analyses the equilibrium partitioning of manganese and silicon between slag and alloy during the production of high carbon ferromanganese (HC FeMn) and silicomanganese (SiMn) in comparison with industrial and experimental data. In production of HC FeMn, manganese slag–metal partitioning is far from equilibrium; in the production of SiMn, manganese, and silicon partitioning between the metal and slag is close to equilibrium at 1600°C.

    7. The Effect of Na2O and K2O on the Partition Ratio of Phosphorus between CaO–SiO2–FetO–P2O5 Slag and Carbon-Saturated Iron (pages 687–694)

      Guangqiang Li, Chengyi Zhu, Yongjun Li, Xiongyuan Huang and Min Chen

      Article first published online: 16 MAY 2013 | DOI: 10.1002/srin.201200216

      Thumbnail image of graphical abstract

      The partition ratios of phosphorous between CaO–SiO2–FetO–P2O5 slag with Na2O or K2O addition and solid pure iron are measured at different temperatures to learn about those between the same slag and carbon-saturated iron. The experimental results shows that both Na2O and K2O addition can improve the dephosphorization ability of the experimental slag and they have similar dephosphorization ability under the same experimental conditions.

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