화학공학소재연구정보센터
Separation Science and Technology, Vol.50, No.8, 1221-1229, 2015
Roasting Followed by Magnetic Separation: A Process for Beneficiation of Titano-Magnetite Ore
Titano-magnetite is an ore of iron and titanium, and is highly magnetic. Magnetite and ilmenite are two major minerals. Ilmenite exhibits various textural dispositions. Widmanstatten and granular exsolution textures are important ones exhibited by the constituent mineral. Reduction roasting followed by two-stage LIMS gives a magnetic concentrate of 65.74% Fe at a yield of 61.22% with 78.07% Fe recovery. Also, a by-product having 28.76% TiO2 at a yield of 20.08% with 36.78% TiO2 recovery is produced. The concentrate (rich in magnetite) can be used as heavy media in coal washeries whereas the middling fraction can be taken for Ti recovery.