Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Mineralogical Characterization-Assisted Reduction Roasting of Banded Hematite Jasper Ore
In many parts of India, because of depletion in high grade iron ore, efforts are focused on the use of low-grade iron ore for steel production. As an alternative iron source, low-grade banded iron ores have attracted attention. The beneficiation and utilization of banded iron ore is closely connected to their mineralogical characteristics, nature of impurity inclusion and liberation behavior. Characterization studies indicated that ore was low in iron value (~ 36.5 wt%), and contained high amount of silica (~ 46.3 wt%), which made it difficult to process by conventional beneficiation method. Therefore, we used reduction roasting method on the ore to produce the pellet feed material. Different process parameters such as roasting time, temperature and coal-ore ratio were optimized to achieve the maximum recovery and grade of magnetic product. Using coal as reducing agent, the optimum condition was found to be as, reduction temperature: 900 °C, time: 90 min, and coal-ore ratio: 15%. Under the optimum condition, maximum recovery and grade of magnetic product were found to be 72% and 65%, respectively.
Mineralogical Characterization-Assisted Reduction Roasting of Banded Hematite Jasper Ore
In many parts of India, because of depletion in high grade iron ore, efforts are focused on the use of low-grade iron ore for steel production. As an alternative iron source, low-grade banded iron ores have attracted attention. The beneficiation and utilization of banded iron ore is closely connected to their mineralogical characteristics, nature of impurity inclusion and liberation behavior. Characterization studies indicated that ore was low in iron value (~ 36.5 wt%), and contained high amount of silica (~ 46.3 wt%), which made it difficult to process by conventional beneficiation method. Therefore, we used reduction roasting method on the ore to produce the pellet feed material. Different process parameters such as roasting time, temperature and coal-ore ratio were optimized to achieve the maximum recovery and grade of magnetic product. Using coal as reducing agent, the optimum condition was found to be as, reduction temperature: 900 °C, time: 90 min, and coal-ore ratio: 15%. Under the optimum condition, maximum recovery and grade of magnetic product were found to be 72% and 65%, respectively.
Mineralogical Characterization-Assisted Reduction Roasting of Banded Hematite Jasper Ore
J. Inst. Eng. India Ser. D
Srivastava, Ranu (Autor:in) / Prasad, Ranjit (Autor:in)
Journal of The Institution of Engineers (India): Series D ; 101 ; 247-252
01.12.2020
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Magnetic Anisotropy and Texture of Banded Hematite Ores
| British Library Online Contents | 1994
Maoto Fukasawa - Jasper Morrison. Naoto + Jasper
| Online Contents | 2006
| British Library Online Contents | 1997
| Online Contents | 1997
| Online Contents | 1995