Method for producing raw iron or liquid steel precursors

摘要

The invention relates to a method for producing raw iron (RE) or liquid steel precursors. Raw materials comprising iron ore and optionally additive materials are reduced in at least one reduction unit (2) by means of a reduction gas, and at least parts thereof are smelted in a smelting unit (1) while adding carbon and forming the reduction gas (RG). Reduction gas from the smelting unit (1) and/or top gas (TG) from the reduction unit (2) are subjected to cleaning. The process water accruing from the wet cleaning is degassed and volatile organic compounds (VOC) are thereby separated from the process water.