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Journals / Sakarya University Journal of Science / 2010 / Volume: 14 Issue: 2

Effect of mechanical activation on the soda roasting kinetics of chromite

Kromitin soda kavurması kinetiğine mekanik aktivasyonun etkisi

Kenan Yıldız
Güven Yarkadaş
Pages
—
Publication Date
2010-12-01
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Abstract

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Özet

Soda roasting kinetics of non-activated and mechanically activated chromite was investigated. It was determined that the reaction was diffusion controlled between 700 900°C and chemical reaction controlled between 900 1200°C. The activation energy of first step for soda roasting of non-activated chromite was 170 kJ/mol and this value decreased to 141.8 kJ/mol for 30 min activated chromite and 79 kJ/mol for 120 min activated chromite. The activation energies for the second step was calculated as 64.7 kJ/mol for non-activated chromite, 43 kJ/mol for 30 min activated chromite and 25.1 kJ/mol for 120 min activated chromite. Mechanical activation reduced the activation energy for the soda roasting of chromite.

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Cite This Article

Yıldız, K., Yarkadaş, G. (2010). Effect of mechanical activation on the soda roasting kinetics of chromite. Sakarya University Journal of Science, Volume: 14 Issue: 2. https://doi.org/10.16984/saufbed.45719

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