FIELD: production of metallic iron in form of granules by means of reduction of raw mixture containing iron oxide, iron ore for example and carbon-containing reductant in furnace with mobile hearth.
SUBSTANCE: amount of CaO-, MgO- and SiO2-containing agents in the mixture is so adjusted that basicity of slag in form of (CaO+MgO)/SiO2 is equal to 1.3-2.3. Content of MgO in slag is 5-13 mass-% depending on composition of slag.
EFFECT: low content of sulfur in metallic iron granules.
9 cl, 6 dwg, 4 tbl, 2 ex
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