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After producing the nickel matte, further processing is done via the Sherritt-Gordon process.
In Finland, primary nickel production takes place by the direct high-grade nickel matte flash smelting process.
Nickel mattes, nickel oxide sinters and other intermediate products of nickel metallurgy.
The low cobalt feeds that are primarily nickel matte, are sent directly to the Adjustment Leach circuit for metal recovery.
The concentrate is smelted to produce nickel matte, which is sent to a refinery where cathodes, anodes, pellets, powders and other products are made.
At present, the concentrates are trucked to the BCL smelter at Selebi Pikwe for conversion to nickel matte.
The largest scale production of nickel chloride involves the extraction with hydrochloric acid of nickel matte and residues obtained from roasting refining nickel-containing ores.
In 2002, BCL and Falconbridge agreed to extend to 2015 the tolling agreement under which BCL-mined nickel matte was refined in Norway.
Of the many projects undertaken, one innovation involved the casting of nickel matte into sulphide anodes for direct electrolysis, thereby avoiding the need to grind, roast and smelt ore to produce nickel metal anodes.
Centametall and Falconbridge shipped the nickel matte to the Falconbridge Nikkelverk, AS refinery in Norway and RioZim Ltd.'s Eiffel Flats refinery in Zimbabwe.
Nickel matte was converted by Inco (Canada) in a pilot Kaldo converter in 1959, and La Metallo-Chimique (Belgium) developed secondary copper smelting using the Kaldo type converters in the late 1960s.
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