Ore Size Does Affect Direct Reduction Of Titaniferous Magnetite

Manamela, M. M.
Organization: The Southern African Institute of Mining and Metallurgy
Pages: 4
Publication Date: Jan 1, 2005
Paper written on project work carried out at the University of Pretoria in partial fulfilment of the requirements of the B Tech degree at the Tshwane University of Technology This work tested whether ore particle size affects the carbon-based pre-reduction of titaniferous magnetite. Pre-reduction is performed at a temperature of some 1100°C in a rotary kiln, in the Highveld Steel process. Laboratory isothermal reduction measurements were performed with ore-coal mixtures at this temperature, to test the effect of ore particle size. The results show that size does limit the degree of reduction for particles larger than 15 mm.
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