Electrostatic Beneficiation Apparatus for Fluidized Iron and Other Ores

The paper presents a new apparatus for electrostatic beneficiation of fluidized ores. The apparatus comprises a fluidized bed, an optional metallic screen electrode located above the bed, and a series of collecting U-or V-shaped troughs. The troughs are moving horizontally below the screen. The vertical electric field traversing the fluid bed was produced by applying high voltage to a porous metallic plate on the floor of the bed and grounding the troughs and screen.