China Nonferrous Metallurgy

Coke, as a reductant in electric furnace smelting of Tislag, has a certain influence on the Tislag smelting process and the product quality. The Xichang coke is taken as the benchmark reductant, analysis on the basic properties of Panjiang coke and Xichang coke is made. By combining the field use of the two kinds of coke, the impact of Panjiang coke on the Tislag smelting of Panzhihua titanium concentrate is studied. The result shows that the graphitization extent of Panjiang coke is 10.83% higher than that of the Xichang coke, it has larger microcrystal volume, with small ratio of corresponding surface active carbon elements to the total carbon elements, so that the reactivity of Panjiang coke is lower than that of Xichang coke. Although the fixed carbon content and particle size distribution of Panjiang coke are superior to those of Xichang coke, the reactivity and structure of the former are inferior to the latter, in some extent,compared with the Xichang coke, the carbon proportioning of Panjiang coke is increased in the reduction of smelting Tislag of Panzhihua titanium concentrate, with higher power consumption per ton material and lower Ti grade of the Ti slag.