Recovery of Iron Values with the Advanced Characterization and the Reduction Kinetics of Banded Hematite With Coal: Ghatkuri (Gua), West Singhbhum, Jharkhand, India - Tapa blanda

Sinopsis

Doctoral Thesis / Dissertation from the year 2018 in the subject Engineering - Metal Engineering, Metal Processing, Metal Structure, , language: English, abstract: The thesis has been divided into several chapters dealing with extensive literature and experimental studies. It focuses on the geological aspects (i.e. correlation with other mineral/ rock in the type area, lithological alignment, availability of different types of fauna and flora and the geomorphological attributes. Second part of the thesis is based on the experimental aspects of Banded Hematite Jasper. It includes different methods of characterisation and its implications on the development of new processes for beneficiation. These experimental techniques also help in understanding the interlocking pattern, % of ore & gangue, extent of liberation and magnetic behaviour of the ore. The experimental section also describes the mechanical and metallurgical behaviour of the ore (Bond Work Index, Vickers Hardness Test). Those parameters help in knowing inter-molecular structure, presence of hydroxyl ion and up to some extent it reveals the quantitative nature of the ore. The experimental part also describes the kinetic behaviour of the ore with coal (i.e. extent of metallisation, factors responsible for reducibility and the activation energy) required for the ore. The experimental section describes the temperature of reduction of the ore with coke oven gas. In this section focus has been given to evolve a correlation between the grain size and the residence time with varying temperature.

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