Fundamental Researches on the High-speed and High-efficiency Steelmaking Reaction

High Temperature Materials and Processes

MaruokaNobuhiro¹  ShibataHiroyuki¹  KitamuraShin-ya¹ 

[1] IMRAM, Tohoku University, Sendai City, Japan;

关键词: steelmaking;    reaction rate;    kinetics;    interfacial area;   

DOI  :  10.1515/htmp-2012-0021

来源: DOAJ

【 摘 要 】

Traditionally, steelmaking reactions have been analyzed by thermodynamics. Recently, software packages that can be used to calculate the equilibrium conditions have improved greatly. In some cases, information obtained in this software is useful for analyzing the steelmaking reaction. On the other hand, in industrial operation, steelmaking reactions, i.e., decarburization, dephosphorization, desulfurization or nitrogen removal, do not reach the equilibrium condition. Therefore, the kinetic model is very important for gaining a theoretical understanding of the steelmaking reaction. In this paper, the following recent research activities were shown; 1) mass transfer of impurities between solid oxide and liquid slag, 2) simulation model of hot metal dephosphorization by multiphase slag, 3) evaluation of reaction rate at bath surface in gas-liquid reaction system and 4) condition for forming of metal emulsion by bottom bubbling.

【 授权许可】

Unknown