Maximisation of Iron Recovery from Lean/Low Grade Iron Ore Resources by Reduction Roasting Technique

Recovery of iron values from lean/low grade iron ore resources by reduction roasting followed by low intensity magnetic separation  . MOU has been signed with M/s FLSmidth (P) Ltd India for commercialisation  

When conventional beneficiation is not feasible for beneficiation of the low  and lean grade iron ore resources, the reduction roasting process is an alternative route. The attempt has been made  to maximize the recovery of iron values from beneficiated plant tailings, slimes from washing plant, low grade ores and lean grade ores like BHQ/BHJ/BGQ by reduction roasting process. By this process, goethite and magnetite mineral phases are changed to the magnetite phase. Depending on the mineralogical characteristics, the grade and recovery varies. It improves not only quality of the concentrate and also the yield of the concentrate by reducing the Fe content in the reject. By this process 80-95% iron value is recovered. 

• It reduces the consumption of more by producing more yields. Hence it enhances the conservation of the ore.
• It reduces the environmental impact by utilizing the low grade ores
• It improves economical benefit to the industry.
• It reduces the technological problem in downstream industries