Effect of MnO on High-Alumina Slag Viscosity and Corrosion Behavior of Refractory in Slags

Influence of TiO2 on the Viscosity of a High Alumina Slag and on Carbon Brick Corrosion

“…The apparatus used to study the corrosion behavior of carbon brick in slags was the modified viscometer which was introduced in our previous paper . The brick cylinders were mounted on a molybdenum rod of 5 mm in diameter.…”

“…Therefore, it is necessary to understand the effect of these trace oxides on the slag properties. In our previous papers, the influence of Cr 2 O 3 and MnO on viscosity and structure of the high alumina slag has been studied, however the effect of TiO 2 on the performance of high alumina slag is not entirely clear.…”

Reaction Behavior of Coke in a High Alumina Slag

“…8(b) On the other hand, the oxides of Cr 2 O 3 and SiO 2 in the slag could directly react with carbon during the penetration process and the oxidation of carbon in the coke will produce more pores and cracks. 20) Reactions between coke and slag also influenced the wetting behavior of coke by slag. Due to the consume of carbon, the molten slag could in contact with the ash minerals directly, and the oxides of coke ash had a good wettability with slag, which may promote the penetration of slag into coke by wetting the ash oxides.…”

Corrosion Behavior of Alumina Containing Refractory in Blast Furnace Hearth by CaO–SiO₂–MgO–Al₂O₃–Cr₂O₃ Slags

“…In our previous papers, [10][11][12] the corrosion mechanisms of refractories, such as carbon composite brick and carbon brick, in CaO-SiO 2 -MgO-Al 2 O 3 -Cr 2 O 3 -based slag have been systematically investigated. In this work, the corrosion behavior of corundum brick by CaO-SiO 2 -MgO-Al 2 O 3 -Cr 2 O 3 slag with or without CaF 2 addition was studied.…”

“…Furthermore, the corrosion behavior of carbon composite brick in CaF 2 -containing slag was also investigated, as a comparison with previous studies. [10][11][12] The aim of this work is to advance the fundamental understanding of the corrosion mechanisms of refractories by blast furnace slags and subsequently provide a guidance to improve the quality of the refractory and prolong the service life of the blast furnace. This will be also helpful so as to increase the use of low-grade ores such as laterite ores in blast furnace.…”