Slag system with alumina addition between 1200oc and 1250oc during high carbon ferromanganese production

Abstract

During smelting processes, the slag formation is a key parameter for an efficient process. During High carbon ferromanganese production, the slag phase formation starts in the upper zone. The ore composition plays an important role in the slag formation which impacts metal recovery. The addition of alumina on the slag phase formation has been investigated. The characterization of materials has been conducted using XRD and SEM-EDS essentially to identify different phases that were present. The investigated temperature ranged from 1200oC to 1250oC. Results have shown that the slag was predominantly tephroite and that alumina addition did not have major influence on phases that formed.