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金属学报  1987, Vol. 23 Issue (2): 177-183    
  论文 本期目录 | 过刊浏览 |
Ti在渣-Fe间迁移过程的研究
杜鹤桂;沈峰满
东北工学院;东北工学院
MIGRATION OF Ti BETWEEN SLAG AND MOLTEN IRON
DU Hegui;SHEN Fengman(Northeast Institute of Technology; Shenyang)(Manuscript received 2 February; 1985; revised manuscript 15 April; 1985)
全文: PDF(571 KB)  
摘要: 本文得到Ti在含TiO_2熔渣与熔铁之间的迁移规律如下:该过程受渣中Ti离子扩散的控制,其表观反应级数为准零级,表观活化能为258kJ/mol.讨论了渣中TiO_2含量、碱度和温度对Ti迁移量和迁移速度的影响.发现了炉渣碱度对Ti迁移的两重性影响:当渣中TiO_2含量较高时,提高碱度将抑制Ti的还原;而在TiO_2含量较低时,提高碱度则促进Ti的还原.并根据热力学分析,认为按[Si]/[Ti](wt-%)的大小可划分出Si促进或抑制Ti还原的区域.
Abstract:The migration of Ti between Ti-containing slag and molten iron was found to be controlled by the diffusion of Ti ions in slag under the experimental conditions. The apparent order of reaction was detected to be of quasi-zero, and the apparent activation energy to be 258kJ/mol. The effects of some factors such as content of Ti in slag, basicity and temperature on the rate of migration have been also discussed. It seems that the basicity of slag serves a dual influence: to increase the basicity in slag with higher TiO_2 content may restrain from the reduction of Ti, while with lower TiO_2 content may accelerate the Ti reduction. Two distinguished regions of the restraint and acceleration of the reduction of Ti by Si may be drawn by wt-% ratio [Si]/[Ti] on the basis of thermodynamical analysis.
收稿日期: 1987-02-18      出版日期: 1987-02-18

引用本文:

杜鹤桂;沈峰满. Ti在渣-Fe间迁移过程的研究[J]. 金属学报, 1987, 23(2): 177-183.
DU Hegui;SHEN Fengman(Northeast Institute of Technology; Shenyang)(Manuscript received 2 February; 1985; revised manuscript 15 April; 1985). MIGRATION OF Ti BETWEEN SLAG AND MOLTEN IRON. Acta Metall Sin, 1987, 23(2): 177-183.

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http://www.ams.org.cn/CN/      或      http://www.ams.org.cn/CN/Y1987/V23/I2/177

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