The invention relates to a method for producing a valuable material product from industrial dust. The method has the steps of: i) 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; ii) preparing the industrial dust by means of the heating device, wherein the preparation comprises: iia) heating the industrial dust at a rate of 20°C/min or more, iib) 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 iic) controlling and/or regulating the oxidising conditions during the preparation, wherein the preparation comprises: at least partially removing the volatile constituents from the industrial dust; and iii) providing the valuable material product. The invention also relates to the prepared valuable material product.
|Translated title of the contribution
|METHOD FOR REMOVING VOLATILE CONSTITUENTS FROM INDUSTRIAL DUST, AND PRODUCT CONTAINING VALUABLE MATERIAL THUS OBTAINED
|C22B 19/ 38 A I
|Published - 17 Mar 2022