Comprehensive Recovery of Valuable Resources from Tailings in Tailings Pond of Daxigou Mine
YUAN Zhuang1, CHEN Wen1, LI Huaixiang1, LI Youcang2, ZHANG Qiang2
1.Changsha Research Institute of Mining and Metallurgy Co Ltd, Changsha 410012, Hunan, China;
2.Shaanxi Daxigou Mining Co Ltd, Shangluo 726409, Shaanxi; China
Abstract：Experimental studies on comprehensive recovery of valuable resources in iron-dressing tailings with TFe grade of 15.70% were conducted by adopting processes consisting of Cu-S bulk flotation, high intensity magnetic separation to reclaim Fe minerals, roasting reduction of Fe minerals, and shaking table gravity separation and flotation separation to recover barite and mica. As a result, the experiment produced an iron concentrate with TFe grade of 60.17%, S content of 0.11% and iron recovery of 66.74%, a sulfur concentrate grading of 47.86% S at 66.58% recovery, a copper concentrate grading 19.79% Cu at 31.24% recovery, a barite rough concentrate with BaSO4 content of 86.96% and recovery of 9.15%, and a mica concentrate with K2O content of 6.66% and recovery of 6.63%, respectively. In this way, comprehensive utilization of tailings can thus be realized.
2024, Vol. 44 
