|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||7th International Symposium on High Temperature Metallurgical Processing
||Production of FeMn Alloys with Heat Treated Mn-nodules
||Merete Tangstad, Eli Ringdalen, Edmundo Manilla, Daniel Davila
|On-Site Speaker (Planned)
FeMn alloys are typically produced with lumpy ore or sinters. Autlan is however making Mn-nodules as a raw material for Mn-alloy production. The Mn nodules have been characterized by XRF, XRD, by wet chemical methods and by EPMA. The Mn/Fe ratio is somewhat lower compared to commercial Mn ore on the marked. The basicity of the ore is however close to 1, and additional fluxes may not be used. The Mn-nodules will be in a state of manganosite (MnO), tephroite ((Mn, Ca)2SiO4) and galaxite ((Mn,Mg)Al2O4). A low porosity and low amount of higher Mn-oxides gives a high thermal strength to the nodules.
The nodules have been used with Comilog ore to produce HC FeMn in a pilot scale experiment. The metal produced is close to the industrial composition and it is shown how the MnO in the slag is following close to the liquidus composition.
||Planned: A print-only volume