METHOD AND DEVICE FOR REMOVING SELENIUM FROM SINTERED DUST, AND METHOD FOR REUSING SINTERED DUST AND METHOD OF PRODUCING REUSED DUST

摘要

To promote reuse of sintered dust by removing selenium contained in the sintered dust and making the sintered dust sound.SOLUTION: A method for removing selenium from sintered dust generated in a sintered ore production process is provided that comprises a mixing step of mixing the sintered dust with water to form slurry, a de-selenium step of adding a chemical to the slurry to transfer selenium contained in the sintered dust to a liquid phase, and a solid-liquid separation step of separating the sintered dust and the aqueous chemical solution. There are provided a device for the method and a sintered dust reuse method for reusing the treated sintered dust as a raw material in an iron-making process.SELECTED DRAWING: Figure 3