METHOD OF NICKEL MATTE PRODUCTION
methods of processing of oxide-bearing nickel ores applicable in production of low-grade nickel matte. SUBSTANCE: method includes loading into shaft furnace of charge containing lumped oxide-bearing nickel-containing ore and fuel-reducer; reduction-sulfdizing smelting. Fuel-reducer is used in form o...
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| creator | SOROKIN A.A STUKOV M.I STUKOV D.V ZHURAVLEVA D.D UJMIN V.A POSOKHOV M.JU ZAGAJNOV V.S LYSENKO A.V SHASHMURIN P.I |
| description | methods of processing of oxide-bearing nickel ores applicable in production of low-grade nickel matte. SUBSTANCE: method includes loading into shaft furnace of charge containing lumped oxide-bearing nickel-containing ore and fuel-reducer; reduction-sulfdizing smelting. Fuel-reducer is used in form of metallurgical coke and commercial bituminous coal with volatile substances yield of not in excess of 14 wt.% preferably, not above 7 wt.%: with ash content within 20 wt.%, preferably, not above 10 wt.%, and thermal stability, at least, 70%, preferably, not less than 80%, taken indefinite ratio. EFFECT: reduced consumption of metallurgical coke, reduced losses of nickel with slag. 7 cl, 1 tbl |
| format | Patent |
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SUBSTANCE: method includes loading into shaft furnace of charge containing lumped oxide-bearing nickel-containing ore and fuel-reducer; reduction-sulfdizing smelting. Fuel-reducer is used in form of metallurgical coke and commercial bituminous coal with volatile substances yield of not in excess of 14 wt.% preferably, not above 7 wt.%: with ash content within 20 wt.%, preferably, not above 10 wt.%, and thermal stability, at least, 70%, preferably, not less than 80%, taken indefinite ratio. 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SUBSTANCE: method includes loading into shaft furnace of charge containing lumped oxide-bearing nickel-containing ore and fuel-reducer; reduction-sulfdizing smelting. Fuel-reducer is used in form of metallurgical coke and commercial bituminous coal with volatile substances yield of not in excess of 14 wt.% preferably, not above 7 wt.%: with ash content within 20 wt.%, preferably, not above 10 wt.%, and thermal stability, at least, 70%, preferably, not less than 80%, taken indefinite ratio. EFFECT: reduced consumption of metallurgical coke, reduced losses of nickel with slag. 7 cl, 1 tbl</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
| title | METHOD OF NICKEL MATTE PRODUCTION |
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