Abstract: Based on the study of the physiochemical properties of the hematite ore to be tested, it was determined to use high intensity magnetic separation-flotation process to treat the hematite ore. The test results of high intensity magnetic separation-anionic indirect flotation reached the expected target, with the iron concentrate having an iron grade of 62.37% and iron recovery of 60.87%. In-depth analysis was made of the causes for the difficulties in improving the metallurgical performances, hereby guiding the further tests.

Key words: Hematite, Process consisting of high intensity magnetic separation and anionic indirect flotation, Flowsheet of cationic indirect flotation