pellet and benificiation process
pellets of 13-19 mm size with 3.47 to 3.56 Kg per pellet green strength. After air drying followed by heat hardening at 250-300C the pellets had an average compression strength of about 80 Kg per pellet. It was observed that due to sudden raise in temp. in the rotary kiln some of the pellets were crushed. But when the hardening was done on a ... 62-66% Fe. BF pellets have a higher Fe content as they are manufactured from low-grade ores that are finely ground prior to undergoing mineral beneficiation treatments. During beneficiation, gangue materials are removed through a variety of mineral processing methods, such as gravimetric separation, magnetic separation and froth flotation.