A New Route to Upgrading the High-Phosphorus Oolitic Hematite Ore by Sodium Magnetization Roasting-Magnetic Separation-Acid and Alkaline Leaching Process
نویسندگان
چکیده
In this paper, an innovative method is proposed to upgrade iron and remove phosphorus from high-phosphorus oolitic hematite ore by the sodium magnetization roasting–magnetic separation–sulfuric acid hydroxide leaching process. The process parameters of roasting, leaching, alkaline were optimized. results show that only adopting traditional separation, concentrate containing 57.49% Fe 1.4% P2O5 at recovery rate 87.5% a dephosphorization 34.27% was produced, indicating it difficult effectively dephosphorize conventional separation obtained rough magnetic concentrates then subjected steps, final product, assayed 64.11% 0.097% P2O5, manufactured successfully. Moreover, added NaOH could promote mineral phase reconstruction aluminum- silica-bearing minerals during roasting intensify upgrading as well enhance growth grains.
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ژورنال
عنوان ژورنال: Minerals
سال: 2022
ISSN: ['2075-163X']
DOI: https://doi.org/10.3390/min12050568