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タイトル: | Thermochemical Properties of Copper-Iron-Sulfur Alloy as Reference Metallic Phase for Analyzing Resulfurization |
著者: | Matsushita, Naoya Awaya, Kosuke Saito, Keijiro Hasegawa, Masakatsu |
著者名の別形: | 松下, 直也 粟屋, 康介 齋藤, 啓次郎 長谷川, 将克 |
キーワード: | resulfurization copper-iron alloy sulfur activity coefficient |
発行日: | Dec-2021 |
出版者: | Iron and Steel Institute of Japan |
誌名: | ISIJ International |
巻: | 61 |
号: | 12 |
開始ページ: | 2929 |
終了ページ: | 2936 |
抄録: | The knowledge of sulfur distribution ratios between FeO-containing slag and hot metal is necessary for better understanding resulfurization in hot metal pre-treatment. To measure sulfur distribution ratios at temperature below the melting point of pure iron, copper-iron liquid alloy has been suggested as a reference metal equilibrated with slag. In the present study, the Henrian activity coefficient of sulfur in copper-iron liquid alloy was determined at 1573 K and 1673 K. The sulfur activity coefficient decreased with an increase in iron content; this result was not inconsistent with that reported by Alcock and Richardson. Negative logarithmic value for the sulfur activity coefficient indicated that the chemical affinity between iron and sulfur would be stronger than that between copper and sulfur. |
著作権等: | © 2021 The Iron and Steel Institute of Japan. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs license. |
URI: | http://hdl.handle.net/2433/266837 |
DOI(出版社版): | 10.2355/isijinternational.ISIJINT-2021-247 |
出現コレクション: | 学術雑誌掲載論文等 |
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