一、铁矿石的性质上厂铁矿石为残坡积赤铁矿,有害杂质硫、磷、砷甚微。铁矿物以赤铁矿为主,其次为褐铁矿、铁锰结核、铁染粘土等;脉石矿物以石英为主,少量方解石、云母、高岭土等。原矿含铁30～35％,硅25～28％,铝9～11％。铁染粘土,铁锰结核等难选氧化矿占全铁的32.45％,易选的赤铁矿、褐铁矿、钛铁矿、镜铁矿占全铁的67.55％。 First, the nature of iron ore plant iron ore for residual hematite hematite, harmful impurities sulfur, phosphorus, arsenic is very small. Iron ore mainly hematite, followed by limonite, iron manganese nodules, iron-stained clay; gangue minerals mainly quartz, a small amount of calcite, mica, kaolin and so on. Raw ore iron 30 to 35%, silicon 25 to 28%, aluminum 9 to 11%. Iron-dyed clay, iron-manganese nodules and other refractory oxide ore accounted for 32.45% of the total iron, easily selected hematite, limonite, ilmenite, specular iron accounted for 67.55% of total iron.