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7. Extraction of bismuth from non-ferrous raw metals
The world's bismuth production comes mainly from the extraction of bismuth from non-ferrous raw metals. In the case of bullion lead, bismuth is a co-product of lead. In the case of raw copper and tin, bismuth is an impurity that should be eliminated rather than recovered, as it leads to a depreciation of the metal with which it is associated.
7.1 Bismuth and lead metallurgy
Lead smelting provides at least 90% of the bismuth consumed worldwide . Lead also contains silver, copper, tin, zinc, arsenic, antimony and sometimes gold.
On leaving the furnace,...
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Extraction of bismuth from non-ferrous raw metals
Uses of bismuth
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