3.This iron ore slurry is pumped to the agitation tank. This iron ore slurry is finally pumped to the flotation machine with the fine sulfide ore (-0.074 mm) going to froth flotation cells for recovery of iron. 4.In magnetite processing plant,the process of flotation separation is replaced by magnetic separation. Aug 31, 2020 Iron ore beneficiation technology by reverse flotation. 08-31-20 561 Views icon 1 Iron ore beneficiation technology by reverse flotation . With the development of the iron and steel industry, the quality requirements for iron ore concentrates are becoming more and more stringent.