Mineralogy of Iron Ores of Different Alumina Levels from Singhbhum Belt and Their Implication on Sintering Process
Mineralogy of Iron Ores of Different Alumina Levels from Singhbhum Belt and Their Implication on Sintering Process作者机构:Research and Development Tata Steel Jamshedpur India Department of Metallurgical Engineering Indian Institute of Technology (Banaras Hindu University) Varanasi India
出 版 物:《Journal of Minerals and Materials Characterization and Engineering》 (矿物质和材料特性和工程(英文))
年 卷 期:2015年第3卷第3期
页 面:180-193页
学科分类:1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学]
主 题:Singhbum Iron Ore Sintering Alumina
摘 要:To increase the life of the mines, ores of lower quality are blended with the higher quality ores. In general, the blending of ores at mines site is controlled by the chemical composition of the ores by controlling the Al2O3 and SiO2 levels on the lowest side possible. However, if there is a change in mineralogy, like an increase in hydrous phase the composition may still be the same, but this difference may affect the sinterability and sinter quality. The mineralogical investigation of iron ores and their chemistry are required to avoid the increase in deleterious elements during sintering. By the know-how of the behavior of individual iron ores in terms of their sinterability, in advance, the quality of the iron ores blend can be optimized to produce quality sinter and productivity. Characterisation studies conducted on iron ores of Singhbhum Orissa belt revealed that hematite, goethite, clay, gibbsite and quartz occur in all the iron ore samples but in variable proportions. Traces of alumina, present as solid solution in the iron oxide minerals, has also contributed Al2O3 to the ores.