Quality and microstructure of hematite pellets with magnesite as fluxing agent
In the present study,effect of MgO,in the form of magnesite flux,on pellet quality,melt formation and microstructure during the induration was examined.Fired pellets with varying MgO content (0 to 3.0%) were tested for cold crushing strength,reduction degradation index,reducibility and swelling characteristics.From the results,it was observed that with increasing MgO,RDI and swelling characteristics of pellets found to be improved.Reducibility of the pellets improved substantially in the range of 0.5 to 1.5% MgO.Improved pellet quality could be attributed to the formation of magnesioferrite phase and high melting point slag formed during induration.Pellets with 2 to 3% magnesite addition,to get 1.0 to 1.5% MgO,exhibited optimum metallurgical properties among all the pellets studied.
Magnesite Pellet Induration swelling acid pellets Magnesioferrite MgO pellets
Srinivas Dwarapudi TK Sandeep Kumar Vilas Tathavadkar Mark B Denys D Bhattacharjee R Venugopal
R&D,Tata Steel Ltd,Jamshedpur,INDIA R&D,Tata Steel Ijmuiden,The Netherlands FME,ISM University,Dhanbad,INDIA
国际会议
Asia Steel International conference 2012(第五届亚洲钢铁大会)
北京
英文
1-5
2012-09-23（万方平台首次上网日期，不代表论文的发表时间）