Vaporization Studies from Slag Surfaces Using a Thin Film Technique
2013 (English)In: Metallurgical and materials transactions. B, process metallurgy and materials processing science, ISSN 1073-5615, E-ISSN 1543-1916, Vol. 44, no 4, 783-788 p.Article in journal (Refereed) Published
The investigations of vanadium vaporization from CaO-SiO2-FeO-V2O5 thin film slags were conducted using the single hot thermocouple technique (SHTT) with air as the oxidizing atmosphere. The slag samples were analyzed after the experiments by SEM/EDX. The vanadium content was found to decrease as a function of time. The loss of vanadium from the slag film after 30 minutes of oxidation was approximately 18 pct and after 50 minutes, it was nearly 56 pct. The possible mechanism of vanadium loss would be the surface oxidation of vanadium oxide in the slag, VO (x) to V5+, followed by surface evaporation of V2O5, which has a high vapor pressure at the experimental temperature.
Place, publisher, year, edition, pages
2013. Vol. 44, no 4, 783-788 p.
Function of time, Hot thermocouple, Oxidizing atmosphere, Possible mechanisms, Surface evaporation, Surface oxidations, Thin-film technique, Vanadium content
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-125842DOI: 10.1007/s11663-013-9865-1ISI: 000321669900001ScopusID: 2-s2.0-84880316866OAI: oai:DiVA.org:kth-125842DiVA: diva2:641071
QC 201308152013-08-152013-08-152013-08-15Bibliographically approved