Patent ID: 6059854
Filing Date: 2000-05-09
Classification: C21B,C21C,C22B,Y02P,Y02W

Abstract:
A method for processing waste incineration residues comprising:introducing solid waste incineration residues into a steelworks slag bath in a sufficient amount so that the solid waste incineration residues constitute from 15% by weight to 45% by weight of the combined weight of the solid waste incineration residues and the steelworks slag bath;melting the waste incineration residues to evaporate heavy metals or heavy metal compounds and drawing off the evaporated heavy metals or heavy metal compounds from the steelworks slag bath to leave a heavy-metal-depleted slag bath;reducing the heavy-metal-depleted slag bath with carbon carriers to form a slag phase and a pig iron phase; andgranulating the slag phase to produce a mixed cement component.