Optimization of the Iron Removal Process Using Manganese Oxide in the Electrolytic Manganese Metal Liquation Process
In the process of electrolytic manganese metal liquid production,manganese oxide powder is commonly utilized to oxidize Fe2+to Fe3+,in order to form iron hydroxide colloid in the subsequent neutralization process and achieve iron removal.Addressing the issue of low iron removal efficiency with low-grade manganese oxide powder,an optimization study of the manganese oxide powder iron removal process was conducted.The results indicated that when the particle size of the manganese powder for iron removal was≤125 μm,the initial mass concentration of the acid was 6.5 g/L,the reaction temperature was 60℃,and the reaction time was 90 min,the iron removal efficiency reached 98.4%,achieving efficient utilization of manganese oxide powder for iron removal.
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