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1 . A 4 0 ton Pierce - Smith convertor working at 9 0 % capacity charged with matte, from the smelter, with the copper
A ton PierceSmith convertor working at capacity charged with matte, from the
smelter, with the copper content of and pure oxygen was blown in as the first step of
blowing. A slag was generated by using a low grade ore as the flux. After tapping slag from
the first blow additional matte was charged into the furnace having the same weight as the
FeS which was oxidized in the first blow. Given that the slag compositions are; SiO
FeO, and CuO and the flux compositions are; Cu Fe S and
SiO calculate:
i The total weight of the flux used and the total weight of the slag produced.
ii The weight of the blister copper formed, assuming it to be as pure Cu
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