A copper-zinc deposit containing 1.36%Cu and 0.63%Zn was developed,but only copper was recoveried by using froth flotation,the zinc remained in the copper concentrates was high,and the zinc remained in copper flotation tailings was not recoveried as yet.The conditions for reducing zinc content in the copper concentrates and recovering zinc in copper flotation tailings were determined in this paper through using the multiple factors alignment test.The results show that zinc in copper flotation tailings can b...