Sustainable Mining and Metallurgy

The copper slag matte produced by ISA matte smelting is settled and separated in the settling electric furnace. The effect of copper slag separation directly affects the direct yield of copper, and has a great influence on the production and economic benefit of copper products. In this paper, through the comprehensive microscopic examination of ISA slag, matte and electric slag in the process of settling matte separation of copper slag, the composition, production form, structure distribution, particle size and particle size distribution of the main copper minerals and gangue minerals of the three were identified and analyzed in detail. The microstructural changes and element distribution of copper slag matte in the process of sedimentation separation were shown in detail, which provided reference and guidance for further research and refinement of sedimentation separation measures.