Applications of MHA binder in oxidized pellets preparation from vanadium,titanium-bearing magnetite concentrates

MHA invented by Central South University was used as an alternative binder of bentonite for oxidized pellet preparation from vanadium,titanium-(V,Ti-) bearing magnetite concentrates,and high-quality blast furnace burdens were obtained.Final results show that preheated pellets with 522 N/P compressive strength and roasted pellets with 3 702 N/P compression strength are achieved,under conditions that MHA dosage is 0.25%,preheating temperature is 950 ℃,preheating time is 10 min,roasting temperature is 1 250 ℃ and roasting time is 10 min.Compared 0.25% MHA pellets with 2.0% bentonite pellets,compression strength of MHA pellets is a little lower,while content of total iron(TFe) of them increases by 1.11%.The reducibility performance index of two kinds of roasted pellets is approximate.MHA binder has good application prospect in the oxidized pellets production.