Water capacity model of Al2O3-CaO-MgO-SiO2 quaternary slag system
2007 (English)In: Steel research, ISSN 0177-4832, Vol. 78, no 6, 460-464 p.Article in journal (Refereed) Published
The focus of the present work was to develop a water capacity model for the quaternary slag system Al2O3-CaO-MgO-SiO2. In the model, a silicate melt was considered to consist of two ion groupings, viz. cation grouping and oxygen ion. The water capacity of a melt is supposed to depend on the interactions between the cations in the presence of oxygen ions. These interactions were determined on the basis of the experimentally measured water solubility data. Only binary interactions were employed in the model. For the system CaO-SiO2, disagreement in the literature data was found. Since the interaction between Ca2+ and Si4+ would play an important role, experiments were carried out to determine the water capacities of some CaO-SiO2 slags. For this purpose a thermogravimetric method was employed. Iso-lines of water capacities at constant MgO contents were predicted by the model and compared with the experimental data from literature. The model calculations agreed well with the experimental results.
Place, publisher, year, edition, pages
2007. Vol. 78, no 6, 460-464 p.
Al2O 3-CaO-MgO-SiO2, Ladle slag, Model, Thermogravimetric method, Water capacity
Other Materials Engineering
IdentifiersURN: urn:nbn:se:kth:diva-6250ISI: 000248267600004ScopusID: 2-s2.0-34547250781OAI: oai:DiVA.org:kth-6250DiVA: diva2:10910
QC 20101110. Uppdaterad från In press till Published (20101110).2006-10-102006-10-102015-08-25Bibliographically approved