Abstract: Slag of copper-smelting converter from a copper smelting works contains copper grade 4.60%, which is a kind of secondary resources with high economical value. Carried out the test of recovering copper from slag of copper-smelting converter, taking thionocarbamate as collector, in condition of grinding fineness at -0.075 mm 90%, after one roughing, three cleaning and two scavenging flotation process, got the copper concentrate grade of 32.46% and recovery of 89.75%. These provide technical reference for recovering copper from the slag of copper-smelting converter.

Key words: Slag of copper-smelting converter, Comprehensive utilization, Thionocarbamates, Flotation