Theoretical study of equilibrium reactions between metal droplets and slag
2007 (English)In: Steel Research International, ISSN 1611-3683, Vol. 78, no 2, 109-116 p.Article in journal (Refereed) Published
The dispersion of metal droplets in slag was investigated through analysis of slag samples taken during ladle refining at Scana Steel in Bjorneborg, Sweden. The chemical composition of steel droplets found in the ladle slag was determined for five industrial-scale heats. Possible reactions occurring between the steel droplets and slag were identified, as were differences in steel-droplet and steel-bulk composition. Three different slag models were used to calculate the activities of oxide components (Al2O3 and SiO2) in the slag. These results were then used in the dilute-solution model, whereby oxygen activities in the steel droplets were calculated and compared with measured oxygen activities in the steel bulk. Significant differences were found in the comparison of both the calculated and measured oxygen activities and the steel bulk and droplet compositions.
Place, publisher, year, edition, pages
2007. Vol. 78, no 2, 109-116 p.
metal droplets, slag, ladle, composition, oxygen activity, liquid liquid interfaces, bubbles, iron, entrainment
IdentifiersURN: urn:nbn:se:kth:diva-16487ISI: 000245189300004ScopusID: 2-s2.0-33847769048OAI: oai:DiVA.org:kth-16487DiVA: diva2:334529
QC 201005252010-08-052010-08-052016-05-18Bibliographically approved