Magnetic Concentration of Mn and Fe in Manganese-containing Low Grade Iron Ore
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摘要: 在含錳貧鐵礦含碳球團直接還原的巖相結構和物相組成研究的基礎上,對富集含錳貧鐵礦中的鐵與錳的磁選方式進行了研究.結果認為,干式磁選對富集礦中鐵的效果比較好,磁性產物中鐵的品位最高可以達到82%,同時具有很高的金屬化率,且干式磁選簡單易行.高磁場強度的濕式磁選對富集礦中錳的效果比較好,可以達到鐵錳礦的要求.Abstract: The microstructure of the carbon-containing pellet of manganese-containing iron ore after direct reduction has been studied. On the basis of the microstructure, two kinds of magnetic separation experiments were conducted:the wet and the dry. The result shows:The dry magnetic separation is suitable to concentrate iron. The best iron grade of the magnetic concentrate could reach 82%; The wet magnetic separation is suitable to concentrate manganese. The quality of the nonmagnetic concentrate could meet the requirement of metallurgy industry.
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Key words:
- lean ore/iron manganese ore /
- direct reduction /
- magnetic separation
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