Method for recycling gold and copper on basis of direct smelting of high-S and high-Fe gold ore and copper-containing scraps

2017 
The invention belongs to the technical field of thermometallurgy, and particularly relates to a method for recycling gold and copper on the basis of direct smelting of high-S and high-Fe gold ore and copper-containing scraps. The method comprises the steps that the high-S and high-Fe gold ore and a fluxing agent are subjected to mixing grinding, and thus a mixture containing S, Fe, Si and Au is obtained; the mixture and the copper-containing scraps are laid in a crucible at intervals in a layer-structure manner, wherein the mixture is arranged on the bottommost layer; and the materials in the crucible are subjected to smelting and cooled after smelting is conducted, and the crucible is taken out and put into ice water for water quenching, and thus gold-containing iron matte and smelting slag are obtained. According to the method for recycling gold and copper on the basis of direct smelting of the high-S and high-Fe gold ore and the copper-containing scraps, the high-S and high-Fe gold ore is directly mixed with the copper-containing scraps to be subjected to direct smelting, gold is enriched in an iron matte phase, gold and copper are recycled from iron matte, and therefore gold enrichment is achieved. The method has the advantage of a traditional thermometallurgy method which is high in recovery rate, and meanwhile the method is low in economic cost, less in pollution and good in iron matte and smelting slag separating effect.
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