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Preoxidation and hydrogen reduction of ilmenite in a fiuidized bed reactor

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Abstract

Studies on preoxidation and hydrogen reduction of Quilon-grade ilmenite have been carried out in a fluidized bed reactor. During preoxidation, the effect of various parameters such as temperature, gas flow rate, and period of reaction has been studied. Hydrogen reduction studies have been carried out both for raw and preoxidized ilmenite. Results obtained on the conversion rate of iron oxide to metallic iron for the preoxidation as well as the reduction period showed three distinct stages: (1) initial slow induction stage; (2) intermediate acceleratory stage; and (3) final slowing down process. Kinetic data plot on -In (1 -x) vs time for metallization of iron oxide showed a linear trend for preoxidation and hydrogen reduction.

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Authors and Affiliations

  1. Metallurgy Division, Bhabha Atomic Research Centre, 400 085, Bombay, India

    P. L. Vijay, Ramani Venugopalan & D. Sathiyamoorthy

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  1. P. L. Vijay
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  2. Ramani Venugopalan
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  3. D. Sathiyamoorthy
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Vijay, P.L., Venugopalan, R. & Sathiyamoorthy, D. Preoxidation and hydrogen reduction of ilmenite in a fiuidized bed reactor. Metall Mater Trans B 27, 731–738 (1996). https://doi.org/10.1007/BF02915601

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