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Mechanically activated carbothermic reduction of ilmenite

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Abstract

A systematic study of the effect of milling conditions on the low-temperature carbothermic reduction of the mineral ilmenite has been carried out. It was found that after ball milling of an ilmenite-carbon mixture at room temperature, the ilmenite was reduced to rutile and metallic iron during subsequent low-temperature annealing (760 °C for 30 minutes). A longer milling time results in a lower reduction temperature and a higher reduction rate. Higher milling intensity also leads to a lower reduction temperature. This enhanced reduction reaction induced by ball milling mainly results from the intimate mixing and large contact area between milled ilmenite and carbon particles.

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Authors and Affiliations

  1. the Department of Electronic Materials and Engineering, Research School of Physical Science and Engineering, The Australian National University, 0200, Canberra, ACT, Australia

    Y. Chen (Senior Research Scientist), T. Hwang (Research Assistant), M. Marsh (Research Assistant) & J. S. Williams (Professor and Head of the Department)

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  1. Y. Chen
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  2. T. Hwang
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  3. M. Marsh
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  4. J. S. Williams
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Chen, Y., Hwang, T., Marsh, M. et al. Mechanically activated carbothermic reduction of ilmenite. Metall Mater Trans A 28, 1115–1121 (1997). https://doi.org/10.1007/s11661-997-0277-1

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  • DOI: https://doi.org/10.1007/s11661-997-0277-1

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