Acta Metall Sin  1994, Vol. 30 Issue (23): 491-498    DOI:

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REDUCTION OF CaO-SiO_2-Al_2O_3-Fe_ tO QUARTERNARY SLAG SYSTEM BY CO

YANG Xuemin; GUO Zhancheng; YU Xianpu; AI Jing; WANG Daguang (Institute of Chemical Metallurgy; Chinese Academy of Sciences; Beijing)(Manuscript received 25 March;1994)

YANG Xuemin; GUO Zhancheng; YU Xianpu; AI Jing; WANG Daguang (Institute of Chemical Metallurgy; Chinese Academy of Sciences; Beijing)(Manuscript received 25 March;1994). REDUCTION OF CaO-SiO_2-Al_2O_3-Fe_ tO QUARTERNARY SLAG SYSTEM BY CO. Acta Metall Sin, 1994, 30(23): 491-498.

Abstract References Related Articles Recommended Metrics Download:  PDF(512KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The reduction of CaO-SiO_2-Al_2O_3-Fe_tO quarternary slag system by CO has been investigated. Apparent reduction rate constant K_ a was determined by mesuring CO_2 evolution from reaction tube with an infrared gas analyser. Adding Al_2O_3 to CaO-SiO_2-Fe_tO ternary slag increases both K_a and reduction rate constant K of CaO-SiO_2-Fe_tO ternary slag. K_a increases and K changes parabolicly with increasing Fe_tO content for CaO-SiO_2-Al_2O_3-Fe_tO slag system at constant slag basicity (B=CaO/SiO_2),and K approaches to the minimum when Fe_tO content is about 60%. K_a increases linearly and K takes a decrease tendency with the increase of optical basicity for A_(FeO) chosen as 1.0 or 0.87. The equation of calculating a_(Fe_tO) for CaO-SiO_2-Al_2O_3-Fe_tO slag system has been derived based on regular solution model and calculated a_(Fe_tO) values are in fairly agreement with bibliography reported data except for extremely Fe_tO rich region.(Correspondent: YANG Xuemin, Institute of Chemical Metallurgy, Chinese Academy of Sciences, Beijing 100080) Key words:  CaO-SiO_2-Al_2O_3-Fe_tO slag system      reduction rate      optical basicity      Fe_tO activity      regular solution model      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1994/V30/I23/491 1NagaskaT,IguchiY,Ban-yaS．FifthInternationalIronandSteelCong．April6-9,l986,WashingtonDC,USA,6692FineH,MeyerD,JankeD,EngelH-J．IronmakingSteelmaking,1985,12(4):1573杨学民,王大光,宣德茂,唐武成,第八届冶金物理化学学术研讨会论文集,苏州,1992:1534杨学民,王大光,刘天中,宣德茂,唐武成．化工冶金,1994:15:75杨学民,王大光,宣德茂,唐武成．化工冶金,1993;14:1956杨学民,王大光,宣德茂,唐武成,化工冶金,1995;16:77杨学民,王大光,宣德茂．金属学报,1993;29:B3418DuffyJA,IngramMD．JAmChemSoc．,1991;93:64489YoungRW,DuffyJA,HassallGJ,XuZ．．IronmakingSteelmakig,1992;19:20110BergmanA．SteelRes,1990;61:34711GaskellDR．TransISIJ,1982;22:99712NagabayashiR,HinoM,Ban-yaS．ISIJInt,1989;29:14013Ban-yaS．ISIJInt,1993;33:214万谷志郎,日野光兀,汤下宪志,铁钢,1985;71:85315万谷志郎,日野光兀,竹添英孝．铁钢,1985;71:190316Ban-yaS,HinoM．ChemicalPropertiesofMoltenSlags．Tokyo:TheIronandSteelInstituteofJapan,1991:275 [1] LIN Qiyong ZHU Miaoyong. INFLUENCE OF CASTING SPEED ON SOFT REDUCTION GRADIENT IN CONTINUOUS CASTING BLOOM[J]. 金属学报, 2009, 45(2): 253-256. [2] WU Ling. The improvement of regular solution model based on GA-NN and its application in binary slag system[J]. 金属学报, 2008, 44(7): 799-802 . [3] LIN Qi-Yong. Soft Reduction Gradient for Continuous Casting Slab with Different Steel Grade[J]. 金属学报, 2007, 43(12): 1297-1300 . [4] LIU Qingcai(Chongqing University;Chongqing 630044)(Department of Metallurgy and Materials Engineering;Chongqing University;Chongqing 630044)(Manuscript received 1995-12-11;in revised form 1996-06-14). RELATIONSHIPS BETWEEN SMELTING REDUCTION RATE AND SLAG STRUCTURE FOR VANADIUM-TITANIUM-CONTAINING MAG NETITE[J]. 金属学报, 1996, 32(10): 1081-1086. [5] YANG Xuemin;WANG Daguang;XUAN Demao Institute of Chemical Metallurgy; Academia Sinica; BeijingDepartment No.2;Institute of Chemical Metallurgy;Academia Sinica; Beijing 100080. REDUCTION OF CaO-SiO2-Fe_tO TERNARY SLAG BY CO[J]. 金属学报, 1993, 29(8): 55-60. [6] HAO Shiming; JIANG Min (Northeast University of Technology; Shenyang). TWO-PHASE EQUILIBRIUM CALCULATION BY THE GRAND POTENTIAL METHOD FOR BINARY ALLOYS[J]. 金属学报, 1992, 28(11): 54-58. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed