Effects of Basicity and Al2O3 Content on Viscosity and Crystallization Behavior of Super-High-Alumina Slag

The CaO-SiO2-MgO-Al2O3 slags with high alumina content are widely applied in various pyrometallurgical processes. However, for super-high-alumina slags, especially those of more than 25 wt%, there is a lack relevant studies about the properties slag. melting behavior, viscosity, structural property, and crystallization behavior high-alumina slag fixed MgO 11.13 wt% Al2O3 from 27.61 to 40 were investigated. results revealed that liquidus temperatures complete solidification increased increasing binary basicity content. temperature viscosity CaO-SiO2-11.13wt%MgO-Al2O3 system 0.8 1 wt%. increase caused formation high-crystallinity point materials slag, such as spinel Åkermanite. A large number non-uniform phases could quickly crystallize out solids present melt, thereby deteriorating fluidity