Abstract:Converter copper-sulfur blowing is a self-heating process. Temperature control is essential for entire smelting process,either over temperature or low temperature will have a tremendous influence on furnace age and single furnace production and product quality. Based on the actual furnace performance and the temperature statistics of slagging and smelting copper during the large-scale converter copper-sulfur blowing, the result shows the effects and measures of temperature control during smelting. The result show that the slagging reaction effect is the best when the initial, middle and final temperature of slagging is controlled at 1100～1160℃,1150～1210℃ and 1195～1260℃, respectively, and the copper reaction effect is the best when the initial and final temperature of slagging is controlled at 1160～1210℃ and 1180～1200℃. It also provides reference significeance for converter copper-sulfur blowing to make better utilize its own residual heat to increase the cold material treatment capacity, protect the furnace lining and ensure the slag type to improve the quality of crude copper.