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›› 2004, Vol. 4 ›› Issue (6): 531-535.

• 过程与工艺 • 上一篇    下一篇

Mg/CaC2脱硫剂在铁水中的脱硫反应解析

徐阳,孙本良,李成威,于奎沣   

  1. 鞍山科技大学材料科学与工程学院
  • 出版日期:2004-12-20 发布日期:2004-12-20

Analysis of Reactions for External Desulphurization of Molten Iron with Mg/CaC2 Desulphurizer

XU Yang,SUN Ben-liang,LI Cheng-wei,YU Kui-feng   

  1. Anshan University of Science and Technology
  • Online:2004-12-20 Published:2004-12-20

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摘要： 在15 kg铁水内进行脱硫实验，发现Mg/CaC2脱硫剂的脱硫速度可用加铝预脱氧得到改善. 在喷吹前，加铝脱氧后可将铁水中的初始氧含量最低脱到约0.0005%，从而提高脱硫速度，最终硫含量可脱到约0.004%. 不加铝时，由于镁和碳化钙都具有脱氧作用，喷吹后最终氧含量最低可脱到约0.0008%，最终硫含量最低可脱到约0.005%.

关键词: 镁, 碳化钙, 脱硫, 脱氧, 优势区图

Abstract: The desulphurization experiments were carried out in 15 kg heats of molten iron. It was found through the experiments that the desulphurization rates could be improved by predeoxidation with an addition of aluminium. Before injection, the initial oxygen content could be dropped to 5 10 6 by addition of aluminium, accelerating desulphurization rate, and the sulphur content could be dropped to 4 10 5. The experiments without adding aluminium showed that the ultimate oxygen content and sulphur content were dropped to 8 10 6 and 5 10 5 respectively, because both Mg and CaC2 have the function of deoxidation.

Key words: magnesium, calcium carbide, desulphurization, deoxidization, predomiance area diagram