Experimental studies on phase equilibria and liquidus temperature in the PbO-ZnO-CaO-SiO2-"Fe2O3" system, with the mass ratios of CaO/SiO2=1-1.6 and Fe/SiO2= 1.3-1.7, and 40 PbO and 8 ZnO, were carried out between 1273 and 1573 K. Slags were equilibrated at 1273 to 1573 K and cooled rapidly by quenching. The XRD and SEM-EDS results showed that the slag compositions are in the franklinite primary phase field. Calcium and lead silicates are formed between 1373 and 1473 K. The Ca/Pb silicate and magnetoplumbite phases are partially formed by an incongruent reaction. The experimental and thermodynamical results showed that the liquidus increased by increasing CaO/SiO2 mass ratio and decreasing Fe/SiO2 mass ratio. © 2012 The Nonferrous Metals Society of China.
|Original language||American English|
|Number of pages||597|
|Journal||Transactions of Nonferrous Metals Society of China (English Edition)|
|State||Published - 1 Mar 2012|
Perez-Labra, M., Romero-Serrano, A., Hernandez-Ramirez, A., Almaguer-Guzman, I., & Benavides-Perez, R. (2012). Effect of CaO/SiO<inf>2</inf> and Fe/SiO<inf>2</inf> ratios on phase equilibria in PbO-ZnO-CaO-SiO<inf>2</inf>-"Fe<inf>2</inf>O <inf>3</inf>" system in air. Transactions of Nonferrous Metals Society of China (English Edition), 665-674. https://doi.org/10.1016/S1003-6326(11)61230-2