• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>The 2nd International symposium on clean steel >Thermodynamic Analysis of Desulfurization and Its Connection With Deoxidation and Temperature for SPHC in JISC During LF Refining Process
【24h】

Thermodynamic Analysis of Desulfurization and Its Connection With Deoxidation and Temperature for SPHC in JISC During LF Refining Process

机译：LFC精炼过程中JISC中SPHC脱硫及其与脱氧和温度的关系的热力学分析

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The thermodynamic characteristics of desulfurization reaction (CaO) +[S]= (CaS) +[O] is analyzed based on the detailed composition of liquid steel and slag of Steel Plate Hot Commercial (SPHC) in Jiuquan Iron & Steel Corporation(JISC), where the activities of CaO, CaS and Al2O3 in molten slag are calculated by thermodynamic software FactSage for a more accurate result. The critical values of [O%]/[S%] for desulfurization at different temperature is are obtained, typically 0.09 at 1873K, which shows directly that it should deoxidize adequately for obtaining a favorable desulfurization condition. In addition, the thermodynamic analysis indicates that the actual dissolved O is much higher than that of equilibrium calculation which shows Al-O reaction in LF is far away from equilibrium, but it is perfect agreement with the computing results when taking the activity of Al2O3 as 1 that due to the inclusion component in LF is mainly Al2O3. Besides, with the temperature rise, the sulfur partition ratio increases softly meanwhile the reaction between Al and O is limited to a great degree resulting in the increase a dissolved oxygen in liquid steel that decreases the sulfur partition ratio seriously. As a result, the sulfur partition ratio appears to decrease with temperature increase in Al killed steel.
机译：根据酒钢集团（JISC）的钢水和钢板热轧商品（SPHC）渣的详细组成，分析了脱硫反应（CaO）+ [S] =（CaS）+ [O]的热力学特性。 ，其中通过热力学软件FactSage计算熔融炉渣中CaO，CaS和Al2O3的活性以获得更准确的结果。获得了在不同温度下脱硫的临界值[O％] / [S％]，通常在1873K时为0.09，这直接表明为了获得良好的脱硫条件，它应该充分脱氧。另外，热力学分析表明，实际溶解的O值远高于平衡计算值，表明LF中的Al-O反应远离平衡，但以Al2O3的活度为计算值与计算结果完全吻合。由图1可知，由于LF中的夹杂物成分，主要是Al 2 O 3。此外，随着温度的升高，硫的分配比缓慢增加，同时，Al和O之间的反应受到很大程度的限制，导致钢液中溶解氧的增加，严重降低了硫的分配比。结果，随着温度的升高，铝镇静钢中的硫分配比似乎降低。

著录项

  • 来源
  • 会议地点 Shenyang(CN)
  • 作者

    GUOJing; CHENG Zi-jian; CHENG Shu-sen; CHENG Ze-wei; ZOUMing; MA Ming-sheng;

  • 作者单位

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology of Beijing, Beijing 100083, China;

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology of Beijing, Beijing 100083, China China's Hongxing Stock Company of Jiugang, Jiugang 735000, Gansu, China;

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology of Beijing, Beijing 100083, China;

    State Key Laboratory of Advanced Metallurgy, University of Science and Technology of Beijing, Beijing 100083, China;

    China's Hongxing Stock Company of Jiugang, Jiugang 735000, Gansu, China;

    China's Hongxing Stock Company of Jiugang, Jiugang 735000, Gansu, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 炼钢;
  • 关键词

    LF refining; desulfurization; deoxidation; sulfur partition ratio;

    机译：LF精炼；脱硫脱氧;硫分配比;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号