|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||7th International Symposium on High Temperature Metallurgical Processing
||Characterization of Sulfidation Roasting of an Iron-rich Manganese Oxide Ore with Elemental Sulfur
||Tao Jiang, Li Qin, Zhixiong You, Yuanbo Zhang, Guanghui Li
|On-Site Speaker (Planned)
Low-grade manganese oxide ore is generally characterized by high iron content. In this work, sulfidation roasting of an iron-rich manganese oxide ore with elemental sulfur was characterized. The experimental results indicated that manganese dioxide can be selectively reduced over iron oxide by using elemental sulfur. The manganese phases in roasted product included low-valence manganese oxide, manganese sulfide and manganese sulfate, while those of iron mainly depended on the sulfur addition. Iron oxide would only be reduced or sulfidized at larger sulfur additions. The effect of roasting temperature, time and S/Mn mole ratio on the phase transformations was also investigated, extractions of Mn/Fe by sulfuric acid were evaluated. Extractions of Mn greater than 95% and Fe less than 10% were obtained under the optimal conditions.
||Planned: A print-only volume