METHOD FOR ENRICHMENT OF COMPOUNDED IRON ORES Russian patent published in 1994 - IPC

FIELD: utilization of machine building wastes. SUBSTANCE: method involves origin material grinding and magnetic separation into light and heavy fraction thus treated material. Heavy fraction is affected by magnetic and electric separation. Ground material is affected by electromagnetic oscillations having superhigh frequency. The process takes place before magnetic separation by passing material through radio-transparent chamber being connected with horn and parabolic antenna, wave guide and generator of superhigh frequency. EFFECT: improves efficiency of the method. 1 dwg