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http://dx.doi.org/10.7844/kirr.2012.21.5.65

Distribution Behavior of Bi and Pb Between Molten PbO-SiO2 Slag and Bi  

Kim, Se-Jong (Dept. of Materials Science and Metallurgical Engineering, Kyungpook National University)
Kim, Eung-Jin (Dept. of Materials Science and Metallurgical Engineering, Kyungpook National University)
Sohn, Ho-Sang (Dept. of Materials Science and Metallurgical Engineering, Kyungpook National University)
Publication Information
Resources Recycling / v.21, no.5, 2012 , pp. 65-71 More about this Journal
Abstract
The equilibrium distribution of bismuth and lead between molten PbO-$SiO_2$ slag and bismuth phase was studied in the temperature range of $775^{\circ}C$ to $850^{\circ}C$ in a MgO crucible. The oxygen partial pressure of atmosphere was controlled by $P_{CO2}/P_{CO}$ ratio. The value of $(%PbO)_{slag}/[%Pb]_{metal}$ increased with increasing $SiO_2$ content of slag, and the value of $(%Bi_2O_3)_{slag}/[%Bi]_{metal}$ decreased with increasing $SiO_2$ content of slag. The concentration of Pb in metal increased with increasing temperature. These experimental results agreed well with the thermodynamic prediction.
Keywords
Lead; Bismuth; PbO-$SiO_2$ slag; Equilibrium distribution; Refining;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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