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J. Cent. South Univ. (2012) 19: 2291-2296 DOI: 10.1007/s11771-012-1274-0 Action rules of H2 and CO in gas-based direct reduction of iron ore pellets YI Ling-yun(易凌云)1, HUANG Zhu-cheng(黄柱成)1, PENG Hu... University Press and Springer-Verlag Berlin Heidelberg 2012 Abstract: The gas-based direct reduction of iron ore pellets was carried out by simulating the typical gas composition in coal gasification......
PREPARATION OF IRON CARBIDE FROM MAGNETITE PELLETS BY CO-H2 MIXTURES REDUCTION J.P.Jiang1,D.Q.Cang1,H.W.Ni2 (1.School of Metallurgy,University of Science and Technology Beijing,Beijing 100083,China... can be divided into two stages: reduction ofmagnetite pellets and carburization of reduction product.The carbon deposition has agreat influence on formation of iron carbide.In order to get a high......
Effect of Na2B4O7 on iron reduction in magnesium alloys AZ31 and AZ91 WU Guo-hua(吴国华), GAO Hong-tao(高洪涛), WANG Wei(王玮), DING Wen-jiang(丁文江) School of Materials Science and Engineering, Shanghai...; Abstract: Effect of Na2B4O7, a new iron reduction agent, on iron reduction in magnesium alloys......
Sticking of iron ore pellets in direct reduction with hydrogen and carbon monoxide: Behavior and preventionYI Ling-yun(易凌云), HUANG Zhu-cheng(黄柱成), LI Tie-hui(李铁辉), JIANG Tao(姜涛) (School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China)Abstract:A series of reduction experiments of iron ore pellets with hydrogen, carbon monoxide and their mixture were......
reduction; hot preheated pellets; swelling index; fibers iron 1 Introduction Direct reduced iron has been considered as necessary feeds in the production of high quality steel. Compared with traditional...]. In China, coal-based direct reduction process was developed in last few years and the traditional coal direct process can be described as follows [3]. Firstly, dry balls prepared from iron concentrates......
Effect of dolomite on reduction swelling property of iron ore pelletsXU Bin(许斌), HOU Tong(侯通), CHEN Xu-ling(陈许玲), LI Qian(李骞), JIANG Tao(姜涛), LI Peng(李鹏) (School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China)Abstract:The effect of various dosages of dolomites on the reduction swelling property of iron ore pellets was studied. Experimental results......
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, and reductant content on the reduction process. PENG et al [7] simulated the reduction of Cr2O3 in dust by using Cr2O3, carbon, CaO and iron powder as the raw materials and suggested... that the fast reduction of carbon-bearing chromite pellet can be achieved above 1300 °C, the reduction reaction of iron is easier than that of chromium and the mole ratio of C-to-O=1.2 is better......
, China) Abstract:This paper studied the changing principles of carbon content in direct reduction iron(DRI) and liquid iron in the COREX melting gasifier. Under the normal workingconditions... and the temperatureon the carbon content of liquid iron in the COREX melting gasifier were confirmed. Key words:melting gasifier; direct reduction iron (DRI); liquid iron; carbon content; [全文内容正在添加中] ......
Recovery of alumina and ferric oxide from Bayer red mud rich in iron by reduction sintering LI Xiao-bin(李小斌), XIAO Wei(肖 伟), LIU Wei(刘 伟), LIU Gui-hua(刘桂华), PENG Zhi-hong(彭志宏), ZHOU... rate and the grade of magnetite concentrate are 60.67% and 61.78%, respectively, under the optimized sintering conditions. Key words: high iron content; red mud; recovery; reduction; sintering......
