| 摘要 |
FIELD: mining.SUBSTANCE: invention relates to methods and device for treatment of iron ores with high phosphorus content. The method comprises the blending of iron ore, containing high-phosphorus iron oxides, with the alkali solution, the pH value of which falls approximately between 12.5 and 13.5, the gravity grading of the mix with the purpose of separation of high-phosphorus alkali solution from of low-phosphorus iron ore and recovery of low-phosphorus iron ore with natural gas.EFFECT: invention allows to remove effectively phosphorus from iron ores for their subsequent use during direct reduction.21 cl, 3 dwg, 1 tbl, 1 ex |
