铁矿直接还原工艺及理论的研究现状及进展  

The Research Current Situation and Progress of Iron Ore Direct Reduction Process and Theory

作　　者：徐承焱[1] 孙体昌[1] 杨慧芬[1] 莫晓兰[1] 李永利[1] 杨大伟[1] 祁超英[1,2] 李志祥[2] 

机构地区：[1]北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083 [2]武汉钢铁集团矿业有限责任公司,武汉430080

出　　处：《矿产保护与利用》2010年第4期48-54,共7页Conservation and Utilization of Mineral Resources

基　　金："十一五"科技支撑计划项目(编号:2007BAB15B01)

摘　　要：论述了国内外铁矿直接还原的现状及进展,从铁矿直接还原工艺研究、理论研究及铁矿直接还原中使用的不同还原剂的影响方面,阐述了在直接还原铁氧化物或铁矿石球团的研究中所取得的成果。还原过程动力学是铁矿直接还原理论研究的主要方向,国内外学者普遍认为其直接还原过程是分步进行的。对于挥发分物质在铁矿煤基直接还原中的作用,研究者们说法不一。This paper described the current situation and progress of iron ore direct reduction at home and abroad. From the aspects of the research in iron ores direct reduction process, theory and the effect of different reductants used in direct reduction of iron ore, the achievements of research in direct reduction of iron oxides and iron ore pellets were expounded. Reduction kinetics was the focus of the research in iron ore direct reduction theory. Scholars at home and abroad generally con- sidered that the direct reduction process was conducted step by step. As for the role of volatile mat- ter in coal - based direct reduction of iron ore, the researchers had different opinions.

关 键 词：铁矿 直接还原 还原理论 还原过程 动力学 热力学 挥发分物质 

分 类 号：TF55[冶金工程—钢铁冶金]