| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to metallurgy, namely, to processing iron ore concentration wastes. Method comprises magnetic separation to produce magnetic and nonmagnetic fractions, and their classification. Magnetic separation is carried out at magnetic field intensity of 15-17 thou oersted. Gravity concentration is carried out at the Knellson apparatus with extraction of light fraction and concentrate of noble, rare, dispersed, platinum metals, directed for double sequential processing at said apparatus. Said light fractions are integrated and separated in heavy suspension at ö=3.0 with extraction of garnet and sand minerals with specific weight of 3.0 g/cm3 to be sixed to (0.5-0.15) mm, (5-0.5) mm and (0-0.015) mm used for production of construction materials as sand and concrete fillers. ^ EFFECT: higher yield. ^ 1 dwg, 1 tbl, 1 ex |
