The process of DRI making aims to remove oxygen from iron ore Pellets/ Lumps.
The process of DRI making aims to remove oxygen from iron ore Pellets/ Lumps. When that occurs, the departing oxygen causes micro pores in the ore body making it porous. The final product, when observed under a microscope, resembles a honeycomb structure looking spongy in texture, hence the DRI is also called as SPONGE IRON. The quality of DRI is primarily ascertained by the percentage of metallization (removal of oxygen), which is the ratio of metallic iron to the total iron present in the product. The metallurgical quality of DRI as to be produced at DRIC is as shown below: