FLUX FOR SMELTING NON-FERROUS METALS FROM ORE AND SECONDARY FEEDSTOCK Russian patent published in 2001 - IPC

FIELD: non-ferrous metallurgy, more particularly pyroprocesses for producing nonferrous metals from ore (primary) and secondary feedstock. SUBSTANCE: incorporation into composition of well known flu for smelling nonferrous metals instead of "crude" limestone of substantially new and not currently used CaO-bearing material, e.g. roasted dump bauxite rock comprising, wt %: CaO, 40.0-45.0; Fe₂O₃, 5.0-15.0; SiO₂, 5.0-15.0; Al₂O₃, 5.0-12.0; MgO, 1.0-5.0, ratios of component being as follows, wt %: roasted dump bauxite rock, 40.0-95.0; SiO₂ bearing material, the balance. Flux has higher solubility. EFFECT: greater saving in fuel and accelerated slag-forming processes in smelting nonferrous metals from ore and secondary feedstock. 2 cl, 2 ex