This article conducts systematic magnetic seed selection experiments on the 0～15mm low-grade specularite pow-der ore of Jiusteel.Through the study of the physical and chemical properties of the target mineral,a comparative study of the physical and chemical properties of FMH magnetic seeds and BSK magnetic seeds,a comparative analysis of microstruc-ture characteristics,magnetic seed modification analysis,modified magnetic seed dispersion and coagulation experiments,and a comparative experiment of magnetic seed magnetization processes,the suitable magnetic seeds and process parameters for the 0～15 mm low-grade powder ore of Jiusteel were determined.Through systematic magnetic seed magnetization process experiments,on the basis of the TFe grade of the 0～15 mm powder ore,a comprehensive iron concentrate grade of 51.22％,a metal recovery rate of 77.73％,and a tailings grade of 13.4％were obtained.
specularite orelow grade fine oremagnetic seed magnetizationmagnetic seed modificationselect experi-ment
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