Effect of BaO,B<sub>2</sub>O<sub>3</sub> on the melting properties and desulphurization ability of an CaO-based refining slag

ZHU Zhenxue; LI Guirong; WANG Hongming; DAI Qixun; LI Bo

doi:10.13374/j.issn1001-053x.2006.08.004

Volume 28 Issue 8

Aug. 2021

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ZHU Zhenxue, LI Guirong, WANG Hongming, DAI Qixun, LI Bo. Effect of BaO,B2O3 on the melting properties and desulphurization ability of an CaO-based refining slag[J]. Chinese Journal of Engineering, 2006, 28(8): 725-727. doi: 10.13374/j.issn1001-053x.2006.08.004

Citation:

ZHU Zhenxue, LI Guirong, WANG Hongming, DAI Qixun, LI Bo. Effect of BaO,B₂O₃ on the melting properties and desulphurization ability of an CaO-based refining slag[J]. Chinese Journal of Engineering, 2006, 28(8): 725-727. doi: 10.13374/j.issn1001-053x.2006.08.004

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Effect of BaO,B₂O₃ on the melting properties and desulphurization ability of an CaO-based refining slag

doi: 10.13374/j.issn1001-053x.2006.08.004

1. Materials Science and Engineering School, Jiangsu University, Zhenjiang 212013, China;
2. BaoSteel Group Shanghai No. 1 Iron & Steel Corp., Shanghai 200431, China

Received Date: 2005-08-03
Rev Recd Date: 2005-09-29

Available Online: 2021-08-24

Abstract

Abstract

A desulphurization experiment was carried out by adding BaO and B₂O₃ to an CaO-based slag. The result shows that the addition of BaO can decrease the melting point and viscosity of the refining slag, improve effectively the dynamics condition of metal-slag reaction, and increase the desulphurization ability of the refining slag. When the BaO content is between 15% and 25%, the desulphurization rate is more than 90%. But the addition of B₂O₃ has little influence on the desulphurization rate, just can be added instead of CaF₂ as a flux.
- steel making,
- CaO-based refining slag,
- melting properties,
- desulphurization