|
|
|
| Effect of Al2O3 on physicochemical properties and structure of blast furnace slag: review |
| LÜ Xue-wei1,2, YAN Zhi-ming1,2, PANG Zheng-de1,2, BAI Chen-guang1,2, LIANG Dong3, XIE Hao4 |
1. College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China;
2. Chongqing Key Laboratory of Vanadium-Titanium Metallurgy and Advanced Materials, Chongqing 400044, China;
3. Technical Center, Shandong Iron and Steel Co., Ltd. (Laiwu Branch), Jinan 271104, Shandong, China;
4. CISDI-INFO Co., Ltd., Chongqing 400013, China |
|
|
|
|
Abstract With the consumption of high-quality iron ore resources,the grade of iron ore raw used by iron making process gradually decreased. The high aluminum raw materials lead to an increase in the Al2O3 content in the blast furnace slag,which has affected the normal operation of the blast furnace. The review focuses on the effect of Al2O3 on the physicochemical properties and structure of blast furnace slag,which will provide scientific basis and theoretical guidance of blast furnace practice for utilization of high alumina raw materials. In particular,the review begins with an introduction to the effect of Al2O3 content on the free running temperature,viscosity,density,surface tension and desulfurization ability of slag,then discussed the structure of alumino-silicate slag and the role of Al2O3 in the slag structure. The relationship between structure and physicochemical properties is introduced through combing with the slag structure information. The current practices of blast furnace operation with high Al2O3 slag system was discussed, and the possibility of the slag system based on alumino-silicate.
|
|
Received: 03 September 2019
|
|
|
|
[1] YAN Z,LÜ X,LIANG D,et al. Transition of blast furnace slag from silicates-based to aluminates-based:Viscosity[J]. Metallurgical and Materials Transactions B,2016,48(2):1092.
[2] 张松. 高铁铝土矿铝铁分离技术研究[D]. 沈阳:东北大学,2013.(ZHANG Song. Research on Separation Technology of High-iron Bauxite Aluminum-iron[D]. Shenyang:Northeastern University,2013.)
[3] Sohn II,Min D J. A review of the relationship between viscosity and the structure of calcium-silicate-based slags in ironmaking[J]. Steel Research International,2012,83(7):611.
[4] Mills K. Slag Atlas[M]. 2nd Edition. Düsseldorf:Verlag Stahleisen GmbH,1995.
[5] 彭其春,杨成威,李光强.湘钢高Al2O3高炉渣粘度研究[J]. 武汉科技大学学报,2005.(PENG Qi-chun,YANG Cheng-wei,LI Guang-qiang. Study on slag viscosity of high Al2O3 blast furnace in Xiangtan Iron and Steel Group[J]. Journal of Wuhan University of Science and Technology,2005.)
[6] 姜鑫,沈峰满,韩宏松,等.高炉渣适宜镁铝比分段管控的分析与应用[J]. 钢铁,2019,54(10):1.(JIANG Xin,SHEN Feng-man,HAN Hong-song,et al. Analysis and application of sectional control of w(MgO)/w(Al2O3) in blast furnace slag[J]. Iron and Steel,2019,54(10):1.)
[7] Kou T,Mizoguchi K,Suginohara Y. The effect of Al2O3 on the viscosity of silicate melts[J]. J Jpn I Met,1978,42:775.
[8] TANG X L,ZHANG Z T,GUO M,et al. Viscosities behavior of CaO-SiO2-MgO-Al2O3 slag with low mass ratio of CaO to SiO2 and wide range of Al2O3 content[J]. Journal of Iron and Steel Research,2011,18(2):1.
[9] YAO L,REN S,WANG X,et al. Effect of Al2O3,MgO,and CaO/SiO2 on viscosity of high alumina blast furnace slag[J]. Steel Research International,2016,87(2):241.
[10] Kim H,Matsuura H,Tsukihashi F,et al. Effect of Al2O3 and CaO/SiO2 on the viscosity of calcium-silicate-based slags containing 10 mass pct MgO[J]. Metallurgical and Materials Transactions B,2013,44(1):5.
[11] Kim J R,Lee Y S,Min D J,et al. Influence of MgO and Al2O3 contents on viscosity of blast furnace type slags containing FeO[J]. ISIJ International,2004,44(8):1291.
[12] YAN Z,LÜ X,ZHANG J,et al. Influence of MgO,Al2O3 and CaO/SiO2 on the viscosity of blast furnace type slag with high Al2O3 and 5 wt% TiO2[J]. Canadian Metallurgical Quarterly,2016,55(2):186.
[13] Park J H,Min D J,Song H S. Amphoteric behavior of alumina in viscous flow and structure of CaO-SiO2(-MgO)-Al2O3 slags[J]. Metallurgical and Materials Transactions B,2004,35(2):269.
[14] SUN C Y,LIU X H,LI J,et al. Influence of Al2O3 and MgO on the viscosity and stability of CaO-MgO-SiO2-Al2O3 slags with CaO/SiO2=1.0[J]. ISIJ International,2017,57(6):978.
[15] Liao J,Zhang Y,Sridhar S,et al. Effect of Al2O3/SiO2 ration on the viscosity and structure of slags[J]. ISIJ International,2012,52(5):753.
[16] Machin J S,Yee T B,Hanna D L. Viscosity studies of system CaO-MgO-Al2O3-SiO2:III,35,45,and 50% SiO2[J]. Journal of the American Ceramic Society,1952,35(12):322.
[17] Nakamoto M,Tanaka T,Lee J, et al. Evaluation of viscosity of molten SiO2-CaO-MgO-Al2O3 slags in blast furnace operation[J]. ISIJ International,2004,44(12):2115.
[18] Sokolov L,Bvv N, Kunin L L,et al. Secondary Reference from Slag Atlas[M]. [S.l.]:Teor Metall Prots,1971.
[19] Rajavaram R,Kim H,Lee C H,et al. Effect of Al2O3 concentration on density and structure of (CaO-SiO2)-xAl2O3 slag[J]. Metallurgical and Materials Transactions B,2017,48(3):1595.
[20] Winterhager L G H,Kamnel R. Forschungs Berichte des Landes Nordrhein-Westfalen[M]. Germany:Westdeutscher Verlag,1966.
[21] Rajavaram R,Kim H,Lee C H,et al.Effect of Al2O3 concentration on density and structure of (CaO-SiO2)-xAl2O3 slag[J].Metallurgical and Materials Transactions B,2017,48(3):1595.
[22] Kang Y,Morita K. Thermal conductivity of the CaO-Al2O3-SiO2 system[J]. ISIJ International,2006,46(3):420.
[23] Mukai K,Ishikawa T. Surface tension measurements on liquid slags in CaO-SiO2,CaO-Al2O3and CaO-Al2O3-SiO2 systems by a pendant drop method[J]. J Jpn I Met,1981,45(2):147.
[24] TIAN Y L,GUO S G,SUN S B. Effect of Al2O3 on surface tension of the SiO2-Al2O3-RO-R2O glass system[J]. Key Eng Mater,2015,633:322.
[25] Parmelee B C W,Harman C G. The effect of alumina on the surface tension of molten glass[J]. Journal of the American Ceramic Society, 2010,20(1-12):224.
[26] YAN Z,LÜ X,PANG Z,et al. Transition of blast furnace slag from silicate based to aluminate based:Density and surface tension[J]. Metallurgical and Materials Transactions B,2018,49(3):9.
[27] Boni R E,Derge G. Surface tensions of silicates[J]. JOM,1956,8(1):53.
[28] Mills K. The estimetion of slag properties[J]. Southern African Pyometallurgy,2011:52.
[29] Nzotta M M. Experimental determination of sulphide capacities in the Al2O3-MgO-SiO2,Al2O3-MnO-SiO2 and Al2O3-CaO-MgO slags in the temperature range 1 773-1 923 K[J]. Scandinavian Journal of Metallurgy,1997,26(4):1697.
[30] Nzotta M M,Nilsson R,Sichen D,et al. Sulphide capacities in MgO-SiO2 and CaO-MgO-SiO2 slags[J]. Ironmaking and Steelmaking, 1997,24(4):300.
[31] Sosinsky J,Sommerville I D. The composition and temperature dependence of the sulfide capacity of metallurgical slags[J]. Metallurgical Transactions B,1986,17(2):331.
[32] Seo J D,Kim S H. The sulphide capacity of CaO-SiO2-Al2O3-MgO(-FeO) smelting reduction slags[J]. Steel Research,1999,70(6):203.
[33] TANG X,XU C. Sulphur distribution between CaO-SiO2-TiO2-Al2O3-MgO slag and carbon-saturated iron at 1 773 K[J]. ISIJ International, 1995,35(4):367.
[34] Shankar A. Sulphur partition between hot metal and high alumina blast furnace slag[J]. Ironmaking and Steelmaking,2006,33(5):413.
[35] Shankar A,Görnerup M,Seetharaman S,et al. Sulfide capacity of high alumina blast furnace slags[J]. Metallurgical and Materials Transactions B,2006,37(6):941.
[36] YAN Z,LÜ X,PANG Z,et al. Transition of blast furnace slag from silicate based to aluminate based:Sulfide capacity[J]. Metallurgical and Materials Transactions B,2017,48(5):8.
[37] Karsrud K. Sulfide capacities of synthetic blast furnace slags at 1 500 ℃[J]. Scand J Metall,1984,13(3):144.
[38] Brown S,Roxburgh R,Ghita I,et al. Sulphide capacity of titania-containing slags[J]. Ironmaking and Steelmaking,1982,9(4):163.
[39] 张学飞. 石钢高炉超高 Al2O3炉渣冶金性能的研究[D]. 唐山:河北联合大学,2012.(ZHANG Xue-fei. Research on Metallurgical Properties of Ultra-high Al2O3 Slag in Shijiazhuang Blast Furnace[D].Tangshan:Hebei Union University,2012.)
[40] Mills K C,Hayashi M,Wang L,et al. Chapter 2.2-The structure and properties of silicate slags[J]. Treatise on Process Metallurgy Process Fundamentals,2014,14:149.
[41] 尤静林. 高温拉曼光谱创新技术、光谱计算和在无机化合物微结构研究中的应用[D]. 上海:上海大学,2006.(YOU Jing-lin. High-temperature Raman Spectroscopy Innovation,Spectral Calculation and Application in the Study of Inorganic Compound Microstructure[D]. Shanghai:Shanghai University,2006.)
[42] Stebbins J F. Review glass structure,melt structure,and dynamics:Some concepts for petrology[J]. Am Mineral,2016,101(4):753.
[43] Stebbins J F,Dubinsky E V,Kanehashi K,et al. Temperature effects on non-bridging oxygen and aluminum coordination number in calcium aluminosilicate glasses and melts[J]. Geochimica et Cosmochimica Acta,2008,72(3):910.
[44] Stebbins,Oglesby J F,Kroeker J V. Oxygen triclusters in crystalline CaAl4O7 (grossite) and in calcium aluminosilicate glasses: 17O NMR[J]. Am Mineral,2001,86(10):1307.
[45] Lacy E D. Aluminum in glasses and melts[J]. Phys Chem Glasses,1963,4:234.
[46] Iuga D,Morais C,Gan Z,et al. NMR heteronuclear correlation between quadrupolar nuclei in solids[J]. Journal of the American Chemical Society,2005,127(33):11540.
[47] Toplis M J,Dingwell D B,Lenci T. Peraluminous viscosity maxima in Na2O-Al2O3-SiO2 liquids:The role of triclusters in tectosilicate melts[J]. Geochimica et Cosmochimica Acta,1997,61(13):2605.
[48] SUN Y,WANG H,ZHANG Z. Understanding the relationship between structure and thermophysical properties of CaO-SiO2-MgO-Al2O3 molten slags[J]. Metallurgical and Materials Transactions B,2018,49(2):677.
[49] ZHENG K,ZHANG Z,YANG F,et al. Molecular dynamics study of the structural properties of calcium aluminosilicate slags with varying Al2O3/SiO2 ratios[J]. ISIJ International,2012,52(3):342.
[50] Mysen B O. Structure and Properties of Silicate Melts[M]. Amsterdam:Elsevier,1988.
[51] LIANG D,YAN Z, Lö X,et al. Transition of blast furnace slag from silicate-based to aluminate-based:Structure evolution by molecular dynamics simulation and raman spectroscopy[J]. Metallurgical and Materials Transactions B,2017,48(1):573.
[52] Kingery W D. Surface tension of some liquid oxides and their temperature coefficients[J]. Journal of the American Ceramic Society, 1959,42(1):5.
[53] Fincham C J B,Richardson F D. The behaviour of sulphur in silicate and aluminate melts[J]. Proceedings of the Royal Society A: Mathematical,Physical and Engineering Sciences,1954,223(1152):40.
[54] Sunahara K,Nakano K,Hoshi M,et al. Effect of high Al2O3 slag on the blast furnace operations[J]. ISIJ International,2008,48:420-9.
[55] 岑明进,孙丽霞,叶兵,等. 武钢高炉渣性能研究[J]. 武钢技术,1999(6):11.(CEN Ming-jin,SUN Li-xia,YE Bing,et al. Study on blasting properties of blast furnace slag in Wuhan Steel[J]. WISCO Technology,1999(6):11.) |
| [1] |
LIU Si-han, WANG Cun-yu, XU Hai-feng, CAO Wen-quan. Superplasticity and microstructure evaluation of cold rolled medium manganese steels[J]. Iron and Steel, 2020, 55(9): 97-103. |
| [2] |
ZHANG Shu-hui, WANG Bao-yong, LAN Chen-chen, LIU Xiao-jie, LÜ Qing. Prospects and present status of pellets chemical composition control[J]. Iron and Steel, 2020, 55(8): 19-26. |
| [3] |
BAI Chen-guang, YAN Zhi-ming, PANG Zheng-de, JIANG Yu-yang, LING Jia-wei, LÜ Xue-wei. Advances of measurement and calculation model of slag viscosity[J]. Iron and Steel, 2020, 55(8): 27-37. |
| [4] |
HAN Yan-jie, ZHANG Qi-feng, QIAN Hui, CAO Yin-ping, YANG Jun-he, YANG Guang-zhi. Relationship between Raman structure andreactivity of coke matrix[J]. Iron and Steel, 2020, 55(8): 81-85. |
| [5] |
LAN Chen-chen, LIU Ran, ZHANG Shu-hui, LÜ Qing. Effect of H2 volume percent on gasification reaction of coke in blast furnace[J]. Iron and Steel, 2020, 55(8): 100-106. |
| [6] |
DU Liang, HAN Xiu-li, ZHANG Quan-sheng, ZHOU Xiang, YANG Hong-da, WANG Ying. Quantitative relation between mineralogical structure and metallurgical properties of sinter of import iron ore[J]. Iron and Steel, 2020, 55(6): 38-45. |
|
|
|
|
2020, Vol. 55 
