Phosphorous Enrichment in Molten Adjusted Converter Slag：Part II Enrichment Behavior of Phosphorus in CaO-SiO_2-FeO_x-P_2O

钢铁研究学报(英文版), 2011, 18(12): 22-26.

Phosphorous Enrichment in Molten Adjusted Converter Slag：Part II Enrichment Behavior of Phosphorus in CaO-SiO_2-FeO_x-P_2O_5 Molten Slag

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1.School of Materials and Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China

2.School of Materials and Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China

3.School of Materials and Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China

4.School of Materials and Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China

基金项目: National Natural Science Foundation of China/Joint Fund for Iron and Steel Research(50874130) National Natural Science Foundation of China(50974034)

关键词：富集行为 , 磷渣 , 熔渣 , 二氧化硅 , 熔融 , SiO2颗粒 , 转炉渣 , 调整

Phosphorous Enrichment in Molten Adjusted Converter Slag：Part II Enrichment Behavior of Phosphorus in CaO-SiO_2-FeO_x-P_2O_5 Molten Slag

Keywords： enrichment behavior , phosphorus , 2CaO·SiO2 particle , mass transfer ,

The enrichment behavior of phosphorus in CaO-SiO2-FeOx-P2O5 slag was studied by making an investigation on the distribution of phosphorous content in the CaO-SiO2-FeOx-P2O5 molten slag.The research results showed that the 2CaO·SiO2 solid particles existing in molten slag were the condensation sites for the phosphorus enrichment.The enrichment process of phosphorus in the molten slag can be recognized as three substeps：mass transfer of phosphorus from bulk slag to the surface of 2CaO·SiO2 particle,superficial solid solution reaction of phosphorus around the 2CaO·SiO2 particle,and diffusion of phosphorus through the product layer of 2CaO·SiO2-3CaO·P2O5 solid solution to the inner of 2CaO·SiO2 particle.Moreover,higher temperature is favorable to the phosphorous enrichment from molten bulk slag to the 2CaO·SiO2 particles.

参考文献

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材料期刊网

Phosphorous Enrichment in Molten Adjusted Converter Slag：Part II Enrichment Behavior of Phosphorus in CaO-SiO_2-FeO_x-P_2O_5 Molten Slag

Phosphorous Enrichment in Molten Adjusted Converter Slag：Part II Enrichment Behavior of Phosphorus in CaO-SiO_2-FeO_x-P_2O_5 Molten Slag

参考文献