关键词: 尾矿, 综合利用, 磁选, 浮选

Abstract: The chemical composition of tailings sands with Fe 21.77%，Cu 0.20%，S 1.03% and the phase of main mineral were analyzed，and then a process of low intensity magnetic separation-high intensity magnetic separation-reduction roasting-low intensity magnetic separation-bulk flotation of copper and sulfur-separation of copper and sulfur is made to get Fe，Cu and S.Under the optimal technical conditions obtained from tests，iron concentrate with a yield of 20.39%，Fe grade of 61.62%，Fe recovery of 57.71%，copper concentrate with Cu grade of 14.57%，Cu recovery of 3.21%，and Sulfur concentrate with S grade of 38.21% and S recovery of 10.95% are achieved.The conclusion is that the recovery of iron minerals reaches remarkable economic benefits，but the recovery of copper and sulfide minerals are not ideal.

Key words: Tailings, Comprehensive utilization, Magnetic separation, Flotation