FIELD: metallurgy.
SUBSTANCE: invention refers to procedure for processing copper-nickel mattes. The procedure consists in pouring melt of copper-nickel matte and in charging flux. Also non-ferrous scrap containing iron is charged into a source melt of copper-nickel matte. Metallised matte is produced upon blowing with oxygen containing gas mixture and upon slag tapping. Upon slag tapping metallised matte is sulphidised with reduced gases of autogenous smelting containing sulphurous anhydride to contents of sulphur equal to sulphur contents in source melt. 40-60 % of finished sulphide product is further tapped, and operations are successively repeated.
EFFECT: maintaining contents of sulphur in copper-nickel matte.
3 ex
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Authors
Dates
2010-08-20—Published
2009-09-10—Filed