METHOD OF MANUFACTURING COLD-PRESSED BRIQUETS FROM IRON-CONTAINING METALLURGY WASTES Russian patent published in 1997 - IPC

FIELD: ferrous metallurgy. SUBSTANCE: invention tackles the problem of using process waste when preparing metallurgic raw material. In manufacture of hold-pressed briquets from iron- containing waste mixed with binder, magnetite metallurgic waste, for example, dross is first mixed with hematite-containing fine-dispersion materials to form layer enveloping discrete magnetite particles and consisting of fine hematite fractions, whereupon binder is admixed. As binder, a mixture containing 0.5-2.0 wt % calcium hydroxide and 2-4 wt % molasses may be used, and, as fine-dispersion hematite-containing material, finely divided iron ore, and/or iron-ore pellets as well as filter and production room dust. EFFECT: increased reduction degree. 10 cl, 2 dwg