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Study on the Kinetics of Aluminum Removal from Liquid Silicon to Slag with Mechanical Stirring
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.ORCID iD: 0000-0002-3548-8638
2016 (English)In: Metallurgical and materials transactions. B, process metallurgy and materials processing science, ISSN 1073-5615, E-ISSN 1543-1916, Vol. 47, no 6, p. 3511-3518Article in journal (Refereed) Published
Abstract [en]

The kinetics of aluminum removal from silicon melt to CaO-SiO2-Al2O3 slag was studied. A recently designed experimental setup using mechanical stirring was employed to focus the study on the chemical reaction. The slag and metal were found to reach chemical equilibrium in 300 seconds. A simple model could reproduce the experimental data satisfactorily. Both the experimental results and the model prediction further confirmed that the process was controlled by the chemical reaction, since the reaction rate constant was found to be independent of the amount of slag and the initial slag composition. The experimental data at equilibrium were compared with the model calculations. The discrepancy between the model calculations and the experimental data strongly suggests the need for careful thermodynamic measurements.

Place, publisher, year, edition, pages
Springer, 2016. Vol. 47, no 6, p. 3511-3518
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:kth:diva-199504DOI: 10.1007/s11663-016-0768-9ISI: 000389800800036Scopus ID: 2-s2.0-84981173145OAI: oai:DiVA.org:kth-199504DiVA, id: diva2:1066230
Conference
International Symposium on Advances in Materials Manufacturing at the Conference of Metallurgists (COM), AUG 23-26, 2015, Toronto, CANADA
Note

QC 20170117

Available from: 2017-01-17 Created: 2017-01-09 Last updated: 2017-11-29Bibliographically approved

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Lee, JaewooSichen, Du

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