|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||8th International Symposium on High Temperature Metallurgical Processing
||Improving Separation of Cu-Fe from Copper Slag by Mineral Phase Reconstruction
||Zhengqi Guo, Deqing Zhu, Jian Pan, Feng Zhang
|On-Site Speaker (Planned)
As iron mainly exists in the magnetite and fayalite, while copper is primarily dispersed in the form of fine matte particle in the copper slags, which are difficult to recover by conventional separation techniques. In this paper, the feasibility of an integrated technological route to improve beneficiation of copper and iron components from copper slag through modification of molten slag was investigated, and the results shows that: the copper grade of rougher copper concentrate was increased from 6.43% to 11.04%, iron recovery of magnetic separation was increased significantly from 32.40% to 63.36%, and other evaluation indexes were changed slightly, in comparison with unmodified copper slag. Meanwhile, the grains of the target minerals in the modified slag grew obviously to the mean size over 50μm after slow cooling. Ultimately, the beneficiation efficiency of copper and iron was improved because of the ease with which the target minerals were liberated.
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