Abstract: In order to further analyze the influence of composition and temperature of slags and hot metal on the titanium distribution ratio under the conditions of furnace protection with titanium ore,the production data of a blast furnace in China was statistically analyzed. And with the help of thermodynamic software Fact Sage,the calculation model of titanium distribution ratio was established.The results indicate that the distribution ratio of titanium increases with the increase of basicity of slags,and decreases with the TiO₂ content increasing in slags. The distribution ratio of titanium shows a positive correlation with the temperature of hot metal and the content of silicon and titanium,but is negatively correlated with the sulfur content in the hot metal.In order to ensure the effective furnace protection under higher titanium load,the basicity of slags and the content of silicon in hot metal should be appropriately increased while controlling the sulfur content and maintaining a higher temperature of hot metal.The distribution ratios of titanium calculated by the model and the on-site data have the same variation with the composition and temperature of slags and hot metal,and the actual value is about 1.7 times of the calculated value. In actual production,the titanium distribution ratio between slags and hot metal can be controlled and predicted based on the established model.