Fray Symposium - Phase Equilibrium Analysis For The System CaO-SiO2-PbO-ZnO-FeO-Fe2O3 At CaO/SiO2 = 1.0 To 1.6 And Fe/SiO2 = 1.1 To 1.7
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2011-Sustainable Industrial Processing Summit
SIPS2011 Volume 1: Sustainable Non-ferrous Smelting in 21st Century

Editors:Florian K
Publisher:Flogen Star OUTREACH
Publication Year:2012
Pages:828 pages
ISBN:978-0-9879917-0-6
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)

    Phase Equilibrium Analysis For The System CaO-SiO2-PbO-ZnO-FeO-Fe2O3 At CaO/SiO2 = 1.0 To 1.6 And Fe/SiO2 = 1.1 To 1.7

    Miguel Perez-Labra1; Antonio Romero-Serrano2; Aurelio Hernandez Ramirez1; Isaias Almaguer-G.3; Ricardo Benavides3;
    1ESIQIE-IPN, MEXICO D.F., Mexico; 2ESIQIE-IPN, Mexico, Mexico; 3SERVICIOS ADMINISTRATIVOS PENOLES, TORREON, Mexico;
    Type of Paper: Regular
    Id Paper: 101
    Topic: 4

    Abstract:

    Experimental studies on the phase equilibrium and the liquidus isotherms for the CaO-SiO2-PbO-ZnO-FeO-Fe2O3 system with CaO/SiO2 mass ratio from 1.0 to 1.6 and Fe/SiO2 mass ratio from 1.1 to 1.7 were carried out in the temperature range from 1273 to 1573 K. The results are presented in the form of pseudoternary sections “Fe2O3”-ZnO-(PbO+CaO+SiO2). The X-Ray and SEM-EDS results showed that the slag compositions of this study are in the spinel franklinite (ZnFe2O4) primary phase field. Hardystonite (Ca2ZnSiO7) and calcium and lead silicates are formed between 1100°C and 1200 °C. The results obtained from experimental and FACTSage calculations showed that increasing the CaO/SiO2 ratio for Fe/SiO2 = 1.1 to 1.7 decreases the liquidus temperature.

    Keywords:

    lead slags, chemical equilibrium

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    Perez-Labra M, Romero-Serrano A, Hernandez Ramirez A, Almaguer-G. I, Benavides R. Phase Equilibrium Analysis For The System CaO-SiO2-PbO-ZnO-FeO-Fe2O3 At CaO/SiO2 = 1.0 To 1.6 And Fe/SiO2 = 1.1 To 1.7. In: Florian K, editors. Sustainable Industrial Processing Summit SIPS2011 Volume 1: Sustainable Non-ferrous Smelting in 21st Century. Volume 1. Montreal(Canada): FLOGEN Star Outreach;2012. p..