Experimental investigation of the viscosities in CaO-SiO2-MgO-Al2O3 and CaO-SiO2-MgO-Al2O3-TiO2 slags
2007 (English)In: Metallurgical and materials transactions. B, process metallurgy and materials processing science, ISSN 1073-5615, E-ISSN 1543-1916, Vol. 38, no 6, 911-915 p.Article in journal (Refereed) Published
The viscosities of high alumina blast furnace slags were experimentally determined by the rotating cylinder method using the Brookfield digital viscometer model LVDV-II + pro. Two different slag systems were considered for the current study, the CaO-SiO2-MgO-Al2O3 quaternary and the CaO-SiO2-MgO-Al2O3-TiO2 quinary system. Experiments were conducted in the temperature range of 1650 to 1873 K. The effects of temperature, basicity, TiO2, and silica activity of slags on viscosity were studied. The viscosity decreases with basicity for high alumina blast furnace slags with basicity in the range of 0.46 to 0.8. At high basicity (similar to 0.8), slag viscosity decreases even with a small amount of TiO2 (similar to 2 pct) addition in the slag. With an increase in silica activity in the range of 0.1 to 0.4, the slag viscosity increases, the increases being steeper below the liquidus temperature.
Place, publisher, year, edition, pages
2007. Vol. 38, no 6, 911-915 p.
Alkalinity; Alumina; Blast furnaces; Silica; Viscometers; Viscosity measurement; Digital viscometer models; Liquidus temperature; Quinary systems; Slags
Metallurgy and Metallic Materials
IdentifiersURN: urn:nbn:se:kth:diva-17182DOI: 10.1007/s11663-007-9087-5ISI: 000251925700008ScopusID: 2-s2.0-37249038999OAI: oai:DiVA.org:kth-17182DiVA: diva2:335225
QC 201008182010-08-052010-08-052010-08-18Bibliographically approved