Fundamentals of fast reduction of ultrafine iron ore at low temperature  

作　　者：Pei Zhao Peimin Guo 

机构地区：[1]State Key Laboratory for Advanced Iron and Steel Processes and Materials, China Iron and Steel Research Institute Group, Beijing 100081, China

出　　处：《Journal of University of Science and Technology Beijing》2008年第2期104-109,共6页北京科技大学学报（英文版）

基　　金：This work was financially supported by the National Natural Science Foundation of China (No.50474006).

摘　　要：Fundamentals on the fast reduction of ultrafine iron ore at low temperature, including characterization of ultrafine ore, deoxidation thermodynamics of stored-energy ultra.fine ore, kinetics of iron ore deoxidation, and deoxidation mechanism, etc., and a new ironmaking process are presented in this article. Ultrafine ore concentrate with a high amount of stored energy can be produced by mechanical milling, and can be deoxidated fast below 700℃ by either the coal-based or gas-based process. This novel process has some advantages over others： high productivity, low energy consumntion, and environmental friendliness.Fundamentals on the fast reduction of ultrafine iron ore at low temperature, including characterization of ultrafine ore, deoxidation thermodynamics of stored-energy ultra.fine ore, kinetics of iron ore deoxidation, and deoxidation mechanism, etc., and a new ironmaking process are presented in this article. Ultrafine ore concentrate with a high amount of stored energy can be produced by mechanical milling, and can be deoxidated fast below 700℃ by either the coal-based or gas-based process. This novel process has some advantages over others： high productivity, low energy consumntion, and environmental friendliness.

关 键 词：IRONMAKING low temperature fast reduction powder refining THERMODYNAMICS KINETICS 

分 类 号：TG2[金属学及工艺—铸造]