FIELD: metallurgy.
SUBSTANCE: proposed method comprises mixing polydisperse ores of ferrous metals and/or concentrates of ferrous metal ores with binder and mix pelletising at pressure. Note here that said binder represents solution of carboxymethyl cellulose of 1-3 wt % concentration in amount sufficient to get mix with moisture content of 7-14% and with addition of bentonite in amount of 0.2-1% of polydisperse material weight. Obtained pellets are roasted at 900-1300°C.
EFFECT: simplified process, higher strength, water resistance and dilution.
2 cl, 4 ex
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Authors
Dates
2013-06-10—Published
2011-11-08—Filed