Abstract: The copper slag has high contents of iron and copper, thus has a high recycling value.Introduces and analyzes systematically the recycling methods of iron and copper in the slag and its limitation at home and abroad, and believes that coal-based direct reduction followed magnetic separation and flotation method should be suitable for the efficient recycling of iron and copper in the copper slag because the iron-bearing minerals in the slag will be transformed into metallic iron recovered easily by magnetic separation, and the copper-bearing minerals will be changed into metallic copper recycled by flotation.

Key words: Copper slag, Coal-based direct reduction, Metallic iron, Metallic copper