BATCH FOR PELLET PRODUCTION USED IN METALLURGY

FIELD: pellet production, in particular method for batch preparation. ^ SUBSTANCE: batch includes iron-ore concentrate and binding composition containing bentonite and 1-5 wt % of polymer (e.g. polysaccharide-based polyelectrolyte) as bentonite activator. Polymer content in each case is determined a...

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Bibliographische Detailangaben
Hauptverfasser:	VOEVODIN L.I, KRETOV S.I, SHAVRIN S.V, LEONT'EV L.I, BRUEV V.P, EVSTJUGIN S.N, GORBACHEV V.A, VAKHRUSHEV L.P
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	FIELD: pellet production, in particular method for batch preparation. ^ SUBSTANCE: batch includes iron-ore concentrate and binding composition containing bentonite and 1-5 wt % of polymer (e.g. polysaccharide-based polyelectrolyte) as bentonite activator. Polymer content in each case is determined according to specific surface of iron-ore concentrate using the next equation: X = (0.5-2.5)xSs/1000, wherein X denotes polymer content in binding composition, wt %; Ss denotes specific surface of iron-ore concentrate, cm2/g. In addition batch contains 0.5-2.0 wt % of fluxing additive and when pellets are used in metallization furnace batch also contains 0.4-1.1 wt % of bauxite. ^ EFFECT: pellets of high quality in dry and wet states, optimum reducibility and strength. ^ 4 cl, 2 tbl