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, but not the vacancy produced by oxygen loss in direct reduction reaction. So, the essence of direct reduction reaction can not be covered by traditional in-situ reduction theory entirely. The combined forms... in the sintering necks of grains, which indicates the sintering of grains was promoted by surface carburization. Key words: ferric bauxite; iron; direct reduction; metallographic structure 铝是仅次于钢铁的第二金属,具有低密度,高导电率......
words: iron ore pellets; direct reduction; sticking prevention; charcoal 直接还原铁是电炉炼钢的理想原料和必不可少的稀释剂.随着全球电炉钢产量日益增长,世界直接还原铁未来的需求量将会不断增长[1-2],而高品质废钢的供给又严重不足.目前,世界直接还原铁(DRI)总产量约75%由气基竖炉工艺生产[3].然而,在气基竖炉致竖炉生产失常,生...景[J]. 炼铁, 2002, 21(3): 53-56. FAN Xiaohui, QIU Guanzhou, JIANG Tao, et al. Present status and development prospect of iron ore direct reduction[J]. Ironmaking, 2002, 21(3): 53-56. [2] 黄柱成, 易凌云, 彭虎, 等......
Preparing high-purity iron by direct reduction-smelting separation of ultra-high-grade iron concentrateFeng Li1,Qing-jie Zhao1,Man-sheng Chu2,Jue Tang1,Zheng-gen Liu1,Jia-xin Wang1,Sheng-kang Li11... content of 2.5 wt%, a DRI with a metallization rate of 96.5% was obtained through coal-based direct reduction of ultra-high-grade iron concentrate. Then, an HPI with a Fe purity of 99.95% and C, Si......
Preparation of CeNi2 intermetallic compound by direct electroreduction of solid CeO2 -2NiO in molten LiCl张宇1,尹华意2,张生栋1,汤迪勇2,袁中伟1,晏太红1,郑卫芳1,汪的华21. Department of Radiochemistry, China Institute of Atomic Energy2. School of Resource and Environmental Science, Wuhan University摘 要:Electrochemical reduction of solid CeO 2 -2NiO to produce CeNi 2 was conducted......
Preparation of CeNi2 intermetallic compound by direct electroreduction of solid CeO2 -2NiO in molten LiCl张宇1,尹华意2,张生栋1,汤迪勇2,袁中伟1,晏太红1,郑卫芳1,汪的华21. Department of Radiochemistry, China Institute of Atomic Energy2. School of Resource and Environmental Science, Wuhan University摘 要:Electrochemical reduction of solid CeO 2 -2NiO to produce CeNi 2 was conducted......
. [4] Chen G Z, Fray D J, Farthing T W. Direct electrochemical reduction of titanium dioxide to titanium in molten calcium chloride[J]. Nature, 2000, 407: 361?364. [5] 邓丽琴,许 茜,李 兵,翟玉春,黄振奇. 电脱氧法由Nb2O5直接制..., ZhANG Shi-min,FAN Xing-xiang, ZHANG Li-bo. Study on the direct electrolysis reduction of titanium dioxide to sponge titanium[J]. Journal of Kunming University of Science and Technology, 2004, 29(4): 50?52......
; 文献标志码:A 文章编号:1672-7207(2014)04-1005-08 Research on ferric bauxite direct reduction-lime sinter process and mechanism HU Wentao1, 2, WANG... and Technology, Beijing General Research Institute of Mining and Metallurgy, Beijing 100070, China) Abstract: The investigation of ferric bauxite direct reduction method based on lime sintering technology......
by further reduction of or its direct decomposition to OH-. The catalytic activity of manganese oxides for the decomposition of H2O2 is well known[17]. Kanungo et al proposed... Electro-catalytic effect of manganese oxide on oxygen reduction at teflonbonded carbon electrode ZHOU De-bi(周德璧), L? Xin-kun(吕新坤), LIU Dan-ping(刘丹平) School of Chemistry and Chemical Engineering......
Reduction and melting behavior of carbon composite lateritic bauxite pelletsYing-yi Zhang1,2,Jie Zhao1,Yuan-hong Qi1,Xiang-li Cheng1,Zong-shu Zou21. State Key Laboratory of Advance Steel Processes and Products, Central Iron and Steel Research Institute2. School of Material and Metallurgy, Northeast University摘 要:Direct reduction of low-grade lateritic......
Investigation on microwave heating for direct leaching of chalcopyrite ores and concentratesKubra Onol,Muhlis Nezihi SaridedeDepartment of Metallurgical and Materials Engineering, Faculty... presenting numerous advantages because of the rapid heating feature. Microwave technology has great potential to improve the extraction efficiency of metals in terms of both a reduction in required leaching......