Institute of Multipurpose Utilization of Mineral Resources, Chinese Academy of Geological SciencesHost
2023 No. 2
Article Contents

Zhang Hanquan, Zhang Pengfei, Xu Xin. Present Situation of Comprehensive Utilization of High Iron Manganese Oxide Ore and Development in Reduction Roasting[J]. Multipurpose Utilization of Mineral Resources, 2023, 44(2): 141-149, 176. doi: 10.3969/j.issn.1000-6532.2023.02.023
Citation: Zhang Hanquan, Zhang Pengfei, Xu Xin. Present Situation of Comprehensive Utilization of High Iron Manganese Oxide Ore and Development in Reduction Roasting[J]. Multipurpose Utilization of Mineral Resources, 2023, 44(2): 141-149, 176. doi: 10.3969/j.issn.1000-6532.2023.02.023

Present Situation of Comprehensive Utilization of High Iron Manganese Oxide Ore and Development in Reduction Roasting

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  • Manganese is widely used in steel, chemical, non-ferrous metallurgy, batteries and other fields. Most of the manganese oxide ore in China are lean ore with high iron and low manganese, and most of them need beneficiation pretreatment before smelting. Commonly used processes include blast furnace smelting method, reduction roasting-leaching method, and direct reduction-leaching method. Among them, the reduction roasting-leaching process can realize the selective separation of iron and manganese minerals, and the comprehensive resource utilization rate is high, but the energy consumption of the roasting process is large. The thermodynamic conditions and kinetics of the simultaneous reduction of iron and manganese minerals must be studied, and the interaction between the magnetization reduction of iron oxide minerals and the pre-reduction of manganese oxide and the law of simultaneous reduction, the phase transformation and crystal form transformation of manganese oxide and iron oxide ore must be clarified, the mineral composition and bonding method of the bond during the reduction process. Provide a theoretical basis for realizing the low-temperature reduction of iron minerals and manganese minerals and saving energy consumption.

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