Abstract: According to the ore characters of an Anhui copper tailing, the technical process of magnetic separation-classification of rough iron concentrate-regrinding of coarse concentrate-magnetic separation-flotation was adopted.Then these results showed that iron concentrate with yield of 54.75%, iron grade of 67.59% and sulfur content of 0.047% at an 84.74% iron recovery was obtained.Thus the grade and recovery of iron concentrate from the tailings can be improved and sulfur content can be reduced.

Key words: Copper tailing, Classification-regrinding of coarse concentrate, Magnetic separation-flotation