Research on Flotation tests for Copper Smelting Slag

The content of the valuable metal in the copper-bearing slag is high,the recovery and utilization of the slag can alleviate the contradiction between supply and demand of the resources,reduce the pollution,and improve the comprehensive utilization rate of the resources.The traditional treatment of copper-bearing slag has the disadvantage of high cost,low copper recovery and serious pollution.An experimental study on the recovery of copper from copper-bearing slag as a kind of material with the characteristics of contenting various metals,hard texture,brittle,hard to grind,and fine dissemination size.These factors such as grinding fineness,flotation concentration and collector type were firstly examined,thus fixing the grinding degree of fineness is-37 μm accounting for 75 %,the flotation concentration was 42%,mixed group xanthate as collector.Then through the open circuit flotation test,adopting a closed circuit with a stage rougher flotation,two stage cleaning and two stage scavenging.The indexes of copper concentrate grade 15.74%,copper recovery 74.65% were obtained.The clean and effective recovery of copper slag can be realized,which can provide reference for further expansion experiment.The research of this technology can provide a reference for the efficient extraction of similar copper containing refractory materials.