Abstract
Firing and metallization of brown iron ore from the Ayat deposit were investigated in present research. In order to remove carbon dioxide, carbonates, hydrated moisture and sulfur from the ore and convert goethite to hematite the oxidation firing was carried out in a Nabertherm muffle furnace at temperature of 900 ° C for 10 minutes. The effect of reduction of temperature was studied, by CO gas at 800, 900, 1000, 1050 ° C, for 3hours reduction time. The chemical composition of the initial and fired ore, as well as magnetic and non-magnetic parts of the reduced samples were studied by using an electron microscope. It was observed that at temperature of 800 ° C iron and phosphorus were not reduced. The metallized material with a low phosphorus content (0.1at%) was obtained at temperature of 1050 ° C.
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