Copper tailings provided by Jinchuan Group as the research object,relying on the coal based hydrogen metallur-gy rotary kiln process(early carbon metallurgy+late hydrogen metallurgy)to carry out coal based hydrogen metallurgy pi-lot test of copper tailings.The experimental data show that the average metallization rate of 93.33％,the grade of magnetic separation iron powder of 86.03％and the recovery rate of system iron of 93.29％are obtained under the conditions of kiln temperature of 1 100 ℃ and kiln time of 3.5 h.
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万方数据