Phase equilibria of "Cu2O"-"FeO"-CaO-MgO-Al2O3 slags at PO2 of 10-8.5 atm in equilibrium with metallic copper for a copper slag cleaning production

Henao, Hector M., Pizarro, Claudio, Font, Jonkion, Moyano, Alex, Hayes, Peter C. and Jak, Evgueni (2010) Phase equilibria of "Cu2O"-"FeO"-CaO-MgO-Al2O3 slags at PO2 of 10-8.5 atm in equilibrium with metallic copper for a copper slag cleaning production. Metallurgical and Materials Transactions B - Process Metallurgy And Materials Processing Science, 41 6: 1186-1193. doi:10.1007/s11663-010-9434-9


Author Henao, Hector M.
Pizarro, Claudio
Font, Jonkion
Moyano, Alex
Hayes, Peter C.
Jak, Evgueni
Title Phase equilibria of "Cu2O"-"FeO"-CaO-MgO-Al2O3 slags at PO2 of 10-8.5 atm in equilibrium with metallic copper for a copper slag cleaning production
Formatted title
Phase equilibria of "Cu2O"-"FeO"-CaO-MgO-Al2O3 slags at PO2 of 10-8.5 atm in equilibrium with metallic copper for a copper slag cleaning production
Journal name Metallurgical and Materials Transactions B - Process Metallurgy And Materials Processing Science   Check publisher's open access policy
ISSN 1073-5615
1543-1916
Publication date 2010-12
Sub-type Article (original research)
DOI 10.1007/s11663-010-9434-9
Volume 41
Issue 6
Start page 1186
End page 1193
Total pages 8
Place of publication New York, United States
Publisher Springer New York
Collection year 2011
Language eng
Formatted abstract
Limited data are available on phase equilibria of the multicomponent slag system at the oxygen
partial pressures used in the copper smelting, converting, and slag-cleaning processes. Recently,
experimental procedures have been developed and have been applied successfully to characterize
several complex industrial slags. The experimental procedures involve high-temperature equilibration
on a substrate and quenching followed by electron probe X-ray microanalysis. This
technique has been used to construct the liquidus for the ‘‘Cu2O’’-‘‘FeO’’-SiO2-based slags with
2 wt pct of CaO, 0.5 wt pct of MgO, and 4.0 wt pct of Al2O3 at controlled oxygen partial
pressures in equilibrium with metallic copper. The selected ranges of compositions and temperatures
are directly relevant to the copper slag-cleaning processes. The new experimental
equilibrium results are presented in the form of ternary sections and as a liquidus temperature vs
Fe/SiO2 weight ratio diagram. The experimental results are compared with the FactSage thermodynamic
model calculations. © The Minerals, Metals & Materials Society and ASM International 2010
Keyword Calcium silicate slags
Oxygen partial-pressure
Thermodynamic properties
Liquidus temperatures
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2011 Collection
 
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Created: Sun, 19 Dec 2010, 00:06:26 EST