Separation of iron and titanium from titanium magnetite raw materials by low-temperature treatment and magnetic separation

Galymzhan Maldybayev, Argyn Korabayev, R. A. Shayakhmetova, А.Т. Khabiyev, Omirserik Baigenzhenov, Rustam Sharipov, А.А. Амирхан

Case Studies in Chemical and Environmental Engineering, 2024

Full text Open access: Gold Metadata (CSL-JSON)

DOI 10.1016/j.cscee.2024.100848

Data confidence 85 high

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Abstract

This paper reviews a study on processing titanomagnetites using low-temperature treatment and magnetic separation. Using a reduction agent (15 %), chloride additives (15 %), and calcium fluoride (5 %) in low-temperature treatment reduced titanium magnetite iron content. This process extracted iron from titanium precisely and thoroughly. The best low-temperature treatment time and temperature were 60 minutes and 1200 °C. Magnetic separation with 0.2 T magnetic field intensity yielded 75.5 % magnetic fraction. Titanomagnetites treated at low temperatures had 50.9 % magnetic portion iron. Magnetic fraction iron extraction was 97.8 %. The yield of 24.5 % was achieved while the non-magnetic concentrate's titanium dioxide content grew to 65 %.