Phosphorus capacity of CaO-SiO2-Al2O3-MgO-FexO slag View Full Text


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Article Info

DATE

2015-05

AUTHORS

Jian-chao Li, Qing Lü, Xiao-jie Liu, Shu-hui Zhang, Dong-hui Liu

ABSTRACT

The CaO-SiO2-Al2O3-MgO-Fex O slag occurs in the production process of Corex ironmaking technology. Most of its metallurgical properties, especially the phosphorus property, are different from the slag produced from blast furnace or converter. In order to explore the dephosphorization ability of CaO-SiO2-Al2O3-MgO-Fex O slag, its phosphorus capacity was measured at 1 673 K by gas-slag-metal equilibrium technique. An iron crucible was used as the reaction vessel, Ag alloy with 0.2% P was used as the metal phase which equilibrated with CaO-SiO2-Al2O3-MgO-Fex O slag, and a constant flow of CO-CO2-N2 gas was used to provide oxygen partial pressure in the experiment. The effects of MgO, Fex O and basicity on slag phosphorus capacity were investigated by single factor test. The results show that the phosphorus capacity rises firstly and then decreases with increasing MgO content under the condition of basicity 1. 3, Fex O content of 2 % and Al2O3 content of 12%. The phosphorus value reaches maximum as the MgO content is 8%. When the basicity of slag is 1.1, MgO content is 10%, and Al2O3 is 12%, the phosphorus capacity increases with the increase of Fex O content. The phosphorus capacity rises linearly when the basicity is increased from 1. 1 to 1. 5. More... »

PAGES

377-381

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1016/s1006-706x(15)30015-7

DOI

http://dx.doi.org/10.1016/s1006-706x(15)30015-7

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1040988161


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