Used
Through the high-value utilization of the copper smelting slag end, the proportion of copper and iron is controlled, and the copper-containing molten iron is obtained after vortex reduction of the depleted slag, and the copper-containing molten iron is directly alloyed After chemical treatment, copper-containing wear-resistant cast iron can be prepared or copper-containing antibacterial stainless steel can be smelted. During the entire process, low-melting-point metal components such as zinc and lead are recovered in the flue gas. Finally, return to the main smelting process. After the tailings are quenched and tempered, they can be directly made into cement clinker after slow cooling, thereby realizing slag-free and clean production of copper smelting
Invented by the team of Professor Zhang Ting'an from the School of Metallurgy of Northeastern University The company's "Technology and Equipment for High-Value Utilization of Copper Smelting Slag Ends" and "Low-Cost Rapid Clean Magnesium Smelting Technology" won gold and silver awards respectively at the 47th International Exhibition of Inventions in Geneva.