Influence of reaction of Al2O3 and carbonaceous materials in Al2O3–C refractories on aluminum and carbon pick-up of iron

doi:https://doi.org/10.1007/s42243-019-00352-5

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Abstract Carbon-containing Al₂O₃ refractory crucibles and pure Al₂O₃ refractory crucible were fabricated to study the effect of carbon-containing Al₂O₃–C refractories on aluminum and carbon pick-up of iron. Refractory crucibles with pure iron powder were placed in a vacuum induction furnace and heated at 1600 °C for regular time under flowing argon atmosphere. The Al and C contents of iron samples were analyzed, and iron samples were also investigated using a field scanning electron microscope equipped with energy-dispersive spectroscope. The results showed that carbon materials did affect the interaction of (Al₂O₃–C)/Fe system, carbothermal reduction in alumina occurred in the reaction system and the extent of reactions depended on the kinds of carbon materials.

Key words： Al₂O₃–C refractory Liquid iron Aluminum pick-up Carbon pick-up Carbothermal reduction

Received: 28 August 2018 Published: 25 January 2020

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	Articles by authors
	Yao-wu Wei
	Yan-jun Dong
	Tao Zhang
	Jun-feng Chen
	Wen Yan

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Yao-wu Wei,Yan-jun Dong,Tao Zhang, et al. Influence of reaction of Al₂O₃ and carbonaceous materials in Al₂O₃–C refractories on aluminum and carbon pick-up of iron[J]. Journal of Iron and Steel Research International, 2020, 27(1): 55-61.