Method of removing volatile constituents from an industrial dust, and valuable material-containing product

Abstract

A product and method for producing a valuable material product from industrial dust having the steps of providing the industrial dust, which has at least one valuable material and a first concentration of volatile constituents, to a heating device with an operating temperature of 600° C. or more, preparing the industrial dust by means of the heating device, wherein the preparation comprises heating the industrial dust at a rate of 20° C./min or more, thermally treating the industrial dust by means of the heating device at a treatment temperature in the range from 900° C. to 1200° C., in particular in the range from 1000° C. to 1100° C., for 30 minutes or more, and controlling and/or regulating the oxidizing conditions during the preparation, wherein the preparation comprises at least partially removing the volatile constituents from the industrial dust, and providing the valuable material product.

Dependencies are inferred from the claim text.