Partitions of Nitrogen and Sulfur between CaO-Al2O3 Melts and Liquid Iron.

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概要

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• Nitrogen and sulfur distribution ratios between CaO-Al2O3 slags and Fe-0.0001-33mass%Al alloys were measured in the temperature range of 1823 to 1923 K, using an Al2O3 and CaO crucibles. The distribution ratios under a CaO crucible were higher than those under an Al2O3 crucible, and increased with an increase of Al content. Nitride and sulfide capacities defined by CN3-=(mass%N)·PO23/4/PN21/2 and CS2-=(mass%S)·PO21/2/PS21/2, respectively, which were obtained by using the reported values for activity of Al2O3, agreed well with those directly measured in a gas-slag experiment under an Al2O3 crucible, but disagreed with those under a CaO crucible. Activities of Al2O3 in the CaO-Al2O3 melts saturated with CaO were evaluated based on the results in the gas-slag experiments.

• The Iron and Steel Institute of Japanの論文

著者

• Suito Hideaki

  Research Institute of Mineral Dressing and Metallurgy, Tohoku University

• Inoue Hajime

  Graduate Student, Tohoku University

• Inoue Ryo

  Research Institute of Mineral Dressing and Metallurgy, Tohoku University

関連論文

• Partition of manganese between .ALPHA.-Fe2O3 crystal and Na2O-B2O3 melts.
• Partitions of Nitrogen and Sulfur between CaO-Al2O3 Melts and Liquid Iron.
• Purification of roasted iron oxide product from waste pickling liquor by glass-ceramic method.
• Removal of impurities in iron ore by Na2O-B2O3 flux.

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