MATERIAL

Iron ore is an important raw material for iron and steel production enterprises. Natural ore (iron ore) is gradually selected by crushing, grinding, magnetic separation, flotation, gravity separation and other procedures.

Iron ore is a mineral aggregates containing iron elements or iron compounds that can be used economically.

Ore containing economically available iron elements is called iron ore. There are many kinds of iron ore, such as magnetite (Fe3O4), hematite (Fe2O3) and siderite (FeCO3). After the iron ore sample is dissolved in hydrochloric acid, the iron in the iron ore is transformed into Fe3+. Fe3+ can be reduced by SnCl2+ under strong acidic conditions. After Fe2+ ·Sn2+ was reduced to Fe3+, the methyl orange could also be reduced to hydrogenated methyl orange by Sn2+ and faded. Therefore, methyl orange can indicate the end point of Fe3+ reduction. Sn2 can also continue to reduce the hydrogenated methyl orange to N-N-dimethyl p-phenylenediamine and sodium p-aminobenzenesulfonate. Iron ore is an international

Equipment

Material

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  Iron ore

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  Coal

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