Chemical, physical, thermal, textural and mineralogical studies of natural iron ores from Odisha and Chhattisgarh regions, India

作     者：Anand Babu KOTTA Swapan Kumar KARAK Mithilesh KUMAR 

作者机构：Department of Metallurgical and Materials Engineering National Institute of Technology 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2018年第25卷第12期

页      面：2857-2870页

核心收录：

学科分类：0709[理学-地质学] 070901[理学-矿物学、岩石学、矿床学] 07[理学] 

基　　金：Project supported by the National Institute of Technology Rourkela India 

主　　题：iron ore chemical analysis mineralogy analysis thermal analysis textural analysis 

摘      要：The chemical,physical,thermal and texture properties of iron ores from different regions of Odisha and Chhattisgarh regions,India,have been investigated to understand the compositional variations of Fe,Al2O3,SiO2,S and *** were analyzed for its susceptibility to meet the industrial requirements,for various iron manufacture *** analysis indicated that the majority of the iron ores is rich in hematite(90wt%),poor in gangue(4.09wt%SiO2and3.8wt%Al2O3)and deleterious elements(P0.065wt%and S0.016wt%)in all these iron ores found to be *** peaks reviled that the gangue is in the form of kaolinite and quartz,and same was observed in Fourier transform infrared(FTIR)spectroscopy in the range of914to1034cm–*** iron ores were found to have excellent physical properties exemplify with tumbler index(82wt%–91wt%),abrasion index(1.27wt%–4.87wt%)and shatter index(0.87wt%–1.64wt%).FTIR and thermal analysis were performed to assimilate the analysis *** was found that these iron ores exhibit three endothermic reactions,which are dehydration below447K with mass loss of0.13wt%to1.7wt%,dehydroxylation at525–609K with mass loss of1.09wt%–4.49wt%and decomposition of aluminosilicates at597–850K with mass loss of0.13wt%–1.15wt%.From this study,we can conclude that due to its excellent physico-chemical characteristics,these iron ores are suitable for BF and DRI operations.