The process of leaching of copper from floatation tailings by air energy heating was investigated.The influence of leaching temperature,initial sulfuric acid concentration,leaching time,liquid to solid ratio,type and amount of oxidant on leaching rate of copper and iron were studied.The results show that at the conditions of ore particle size of-200 mesh accounting for 85%,leaching temperature of 70 ℃,leaching time of 4h,initial sulfuric acid concentration of 10g/L,liquid to solid ratio of 4∶1,adding modera...