Direct Reduction of High-phosphorus Oolitic Hematite Ore Based on Biomass Pyrolysis

被引:0
作者
Dongbo HUANG [1 ]
Yanbing ZONG [1 ]
Rufei WEI [1 ]
Wei GAO [2 ]
Xiaoming LIU [1 ,3 ]
机构
[1] School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing
[2] School of Civil and Environmental Engineering,University of Science and Technology Beijing
[3] State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing
关键词
high-phosphorus oolitic hematite ore; direct reduction; biomass pyrolysis; dephosphorization;
D O I
暂无
中图分类号
TF55 [铁矿石直接还原]; TK6 [生物能及其利用];
学科分类号
080602 ; 080703 ;
摘要
Direct reduction of high-phosphorus oolitic hematite ore based on biomass pyrolysis gases(CO,H2,and CH4),tar,and char was conducted to investigate the effects of reduction temperature,iron ore-biomass mass ratio,and reduction time on the metallization rate.In addition,the effect of particle size on the dephosphorization and iron recovery rate was studied by magnetic separation.It was determined that the metallization rate of the hematite ore could reach 99.35% at iron ore-biomass mass ratio of 1∶0.6,reduction temperature of 1 100℃,and reduction time of 55 min.The metallization rate and the aggregation degree of iron particles increase with the increase of reduction temperature.The particle size of direct reduced iron(DRI) has a great influence on the quality of the iron concentrate during magnetic separation.The separation degree of slag and iron was improved by the addition of 15 mass% sodium carbonate.DRI with iron grade of 89.11%,iron recovery rate of 83.47%,and phosphorus content of 0.28% can be obtained when ore fines with particle size of-10 μm account for 78.15%.
引用
收藏
页码:874 / 883
页数:10
相关论文
共 16 条
[1]  
Distribution behavior of phosphorus in the coal-based reduction of high-phosphorus-content oolitic iron ore [J]. Yong-sheng Sun,Yue-xin Han,Peng Gao,Duo-zhen Ren.&nbsp&nbspInternational Journal of Minerals Metallurgy and Materials. 2014(04)
[2]  
Recovery of iron from high phosphorus oolitic iron ore using coal-based reduction followed by magnetic separation [J]. Yong-sheng Sun,Yue-xin Han,Peng Gao,Ze-hong Wang,Duo-zhen Ren.&nbsp&nbspInternational Journal of Minerals Metallurgy and Materials. 2013(05)
[3]   原矿粒度对鄂西高磷鲕状赤铁矿直接还原焙烧同步脱磷的影响研究 [J].
郭倩 ;
孙体昌 ;
李永利 ;
翟栋 ;
张士元 ;
刘志国 .
矿冶工程, 2013, 33 (01) :60-64
[4]  
Effect of coal levels during direct reduction roasting of high phosphorus oolitic hematite ore in a tunnel kiln [J]. Li Yongli, Sun Tichang , Zou Anhua, Xu Chengyan State Key Laboratory of High-Efficient Mining and Safety of Metal Mines, Ministry of Education, University of Science and Technology Beijing, Beijing 100083, China.&nbsp&nbspInternational Journal of Mining Science and Technology. 2012(03)
[5]   鄂西高磷鲕状赤铁矿直接还原焙烧同步脱磷机理 [J].
杨大伟 ;
孙体昌 ;
杨慧芬 ;
徐承焱 ;
祁超英 ;
李志祥 .
北京科技大学学报, 2010, 32 (08) :968-974
[6]   高磷鲕状赤铁矿直接还原过程中铁颗粒长大特性研究 [J].
周继程 ;
薛正良 ;
李宗强 ;
张海峰 .
武汉科技大学学报(自然科学版), 2007, (05) :458-460
[7]   生物质直接燃烧技术的发展研究 [J].
张明 ;
袁益超 ;
刘聿拯 .
能源研究与信息, 2005, (01) :15-20
[8]   Study on Phosphorus Removal of High-Phosphorus Oolitic Hematite by Coal-Based Direct Reduction and Magnetic Separation [J].
Li, Yongli ;
Sun, Tichang ;
Kou, Jue ;
Guo, Qian ;
Xu, Chengyan .
MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW, 2014, 35 (01) :66-73
[9]  
Reaction behavior during heating biomass materials and iron oxide composites [J] . Yasuaki Ueki,Ryo Yoshiie,Ichiro Naruse,Ko-ichiro Ohno,Takayuki Maeda,Koki Nishioka,Masakata Shimizu.&nbsp&nbspFuel . 2013
[10]  
Rapid and direct magnetization of goethite ore roasted by biomass fuel [J] . Yan Wu,Mei Fang,Lvdeng Lan,Ping Zhang,K.V. Rao,Zhengyu Bao.&nbsp&nbspSeparation and Purification Technology . 2012