Iron Reclaiming from Concentrator Tailings by Combined Processes of Magnetic Separation and Gravity Concentration /Flotation

According to the characteristics of uneven size distribution of specularite particles in the tailings from some iron ore concentrator,experimental studies were performed by two flowsheets respectively. Results showed that a combined process of gravity separation-magnetic separation-flotation produced an iron concentrate approaching 65. 86% Fe grade at 71. 76% recovery with a yield of 22. 26%,and another process of gravity separation-magnetic separationgravity separation led to an iron concentrate approaching 66. 13% Fe grade at 66. 16% recovery with a yield of 20.44%. This study can provide a technical reference and guidance not only for the exploitation of such kind of tailings,but also for the efficient utilization of secondary resources of this kind.