Separation process of zinc present in steelmaking and blast furnace sludge

摘要

B "ZINC SEPARATION PROCESS PRESENT IN THE PULLEYS OF ACIARIA AND ALTO-OVEN" D. The present application refers to a process of ultrasonic bombardment with mechanical agitation (4), from sludge from the melt shop (2) and blast furnace (1), in order to separate the particles containing zinc and / or alkali from the that are rich in iron, as well as separating the carbon in the blast furnace sludge (1), allowing the latter to be reused, while those containing zinc can be separated in the form of tailings, or used in cases where this element is the objectified. This ultrasonic bombardment (4) can be done before (3a) gravity and / or magnetic concentration processes, after (3b), or alternated between these processes, depending on the composition and granulometry of the sludge to be treated, as well as the content of the final product.