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2007•The Chinese Journal of Nonferrous MetalsRequires access

Effect of temperature and gas pressure on phosphorus capacity of CaO-SiO_2-Al_2O_3-MgO-Fe_tO system

Lue Qing, Fumin Li, Shuhui Zhang, Huang Jianming

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Abstract

The phosphorus capacity of CaO-SiO2-Al2O3-MgO-FetO slags was measured by equilibrating the slags in a molybdenum crucible with CO-CO2-Ar gas and Ag-0.2%P alloy.The effects of temperature and gas pressure on phosphorus capacity were analyzed.The results show that for the slag with constant compositions,under the condition of fixed CO,CO2 and Ar constitution,the phosphorus capacity decreases with increasing temperature from 1 723 K to 1 823 K;the phosphorus capacity rises with the increase of oxygen pressure from 3.6×10?5 Pa to 7.2×10?4 Pa at 1 773 K.

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The phosphorus capacity of CaO-SiO2-Al2O3-MgO-FetO slags was measured by equilibrating the slags in a molybdenum crucible with CO-CO2-Ar gas and Ag-0.2%P alloy.The effects of temperature and gas pressure on phosphorus capacity were analyzed.The results show that for the slag with constant compositions,under the condition of fixed CO,CO2 and Ar constitution,the phosphorus capacity decreases with increasing temperature from 1 723 K to 1 823 K;the phosphorus capacity rises with the increase of oxygen pressure from 3.6×10?5 Pa to 7.2×10?4 Pa at 1 773 K.

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Available abstract

The phosphorus capacity of CaO-SiO2-Al2O3-MgO-FetO slags was measured by equilibrating the slags in a molybdenum crucible with CO-CO2-Ar gas and Ag-0.2%P alloy.The effects of temperature and gas pressure on phosphorus capacity were analyzed.The results show that for the slag with constant compositions,under the condition of fixed CO,CO2 and Ar constitution,the phosphorus capacity decreases with increasing temperature from 1 723 K to 1 823 K;the phosphorus capacity rises with the increase of oxygen pressure from 3.6×10?5 Pa to 7.2×10?4 Pa at 1 773 K.

Key concepts: Crucible (geodemography), Phosphorus, Molybdenum, Materials science, Slag (welding), Partial pressure, Oxygen, Heat capacity

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Effect of temperature and gas pressure on phosphorus capacity of CaO-SiO_2-Al_2O_3-MgO-Fe_tO system — Research Paper | ScholarLens