采用煤基直接还原熔分技术研究了高铁铝土矿含碳球团的还原熔分工艺,考察了直接还原熔分工艺对粒铁尺寸和粒铁收得率以及熔分渣中Al2 O3品位的影响.结果表明:当球团碱度为1.0,还原-熔分温度为1 450℃,配碳比n(C)/n(O)为1.4,外配CaF2质量分数为2.0％,还原-熔分时间为20 min时,粒铁尺寸最大(15.55 mm),粒铁收得率和熔分渣中的Al2O3品位最高,分别为95.67％和43.96％.高质量的粒铁具有较高的碳含量(w[C]=3.86％)和金属铁含量(w[Fe] =93.46％)以及锰含量(w[Mn]=1.63％),能够满足钢铁工业对铁水品质的要求,同时熔分渣的化学成分也达到了黏土砖熟料的工业指标.
参考文献
| [1] | Xuefei Liu;Qingfei Wang;Qizuan Zhang;Yuewen Feng;Shuhui Cai.Mineralogical characteristics of the superlarge Quaternary bauxite deposits in Jingxi and Debao counties, western Guangxi, China[J].Journal of Asian earth sciences,2012:53-62. |
| [2] | Xuefei Liu;Qingfei Wang;Jun Deng .Mineralogical and geochemical investigations of the Dajia Salento-type bauxite deposits, western Guangxi, China[J].Journal of Geochemical Exploration: Journal of the Association of Exploration Geochemists,2010(3):137-152. |
| [3] | H. Kahn;M.M.L. Tassinari;G. Ratti .Characterization of bauxite fines aiming to minimize their iron content[J].Minerals Engineering,2003(Suppl.11):1313-1315. |
| [4] | James M. McClelland;Gary E. Metius .Recycling Ferrous and Nonferrous Waste Streams with FASTMET[J].JOM,2003(8):30-34. |
| [5] | DINGYin—gui,WANGJing—song,WANGGuang,MA Sai,XUEQing—guo.Comprehensive Utilization of Paigeite Ore Using Iron Nugget Making Process[J].钢铁研究学报：英文版,2012(06):9-13. |
| [6] | I. F. Kurunov .THE DIRECT PRODUCTION OF IRON AND ALTERNATIVES TO THE BLAST FURNACE IN IRON METALLURGY FOR THE 21st CENTURY[J].Metallurgist,2010(5/6):335-342. |
| [7] | Chakraborty, N;Mukheriee, I;Santra, AK;Chowdhury, S;Chakraborty, S;Bhattacharya, S;Mitra, AP;Sharma, C .Measurement of CO2, CO, SO2, and NO emissions from coal-based thermal power plants in India[J].Atmospheric Environment,2008(6):1073-1082. |
| [8] | Natsuo Ishiwata;Yoshitaka Sawa;Hiroyuki Hiroha .Investigation of Reduction and Smelting Mechanism in the Hi-QIP Process[J].Steel Research,2009(8):523-529. |
| [9] | Huifen Yang;Lili Jing;Baogang Zhang .Recovery of iron from vanadium tailings with coal-based direct reduction followed by magnetic separation[J].Journal of hazardous materials,2011(2/3):1405-1411. |
| [10] | Mi Li;Bing Peng;Liyuan Chai;Ning Peng;Huan Yan;Dongke Hou .Recovery of iron from zinc leaching residue by selective reduction roasting with carbon[J].Journal of hazardous materials,2012(Oct.30):323-330. |
| [11] | J.H. Park;M.O. Suk;I.-H. Jung;M. Guo;E. Blanpain .Interfacial Reaction between Refractory Materials and Metallurgical Slags containing Fluoride[J].Steel Research International,2010(10):860-868. |
| [12] | 张颖异,师学峰,齐渊洪,邹宗树,郭玉华.基于铝土矿配碳球团还原熔分过程的渣相组成[J].钢铁,2015(2):17-21. |
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