Original scientific paper

Oxidations behavior of C, Si, Mn, P, Nb in Nb-bearing hot metal by bottom blowing oxygen

Z. Y. Xu ; School of Materials Science and Engineering, Inner Mongolia University of Technology, China
B. W. Li ; Inner Mongolia University of Science and Technology, China
Z. W. Zhao ; Inner Mongolia University of Science and Technology, China

Abstract

This paper focuses on oxidationS behavior of C, Si, Mn, P, Nb in Nb-bearing hot metal during bottom-blowing oxygen in a vacuum-induction furnace. This blowing process was carried out separately with and without slag at the flow rate of 0,4 m2/min to 0,6 m2/min. The results show that niobium is massively removed from the hot metal while silicon content in hot metal is decreased to lower than 0,01wt. % with adding slag , P content keeps unchanged, and sulfur content is decreased in hot metal at the beginning of blowing stage while it increased in hot metal with the extension of smelting time.

Keywords

Nb - bearing; hot pig iron; oxidation C, Si, Mn, P, Nb, time; blowing to oxygen

Hrčak ID:

218387

URI

https://hrcak.srce.hr/218387

Publication date:

1.7.2019.

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