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Smelting is a form of extractive metallurgy; its main use is to produce a base metal from its ore. This includes production of silver, iron, copper and other base metals from their ores. ... The others – copper, lead, silver, tin, iron and mercury – occur primarily as minerals, though copper is occasionally found in its native state in...
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Jan 28, 2015 ... iron processing · copper processing · gold processing · aluminum ... Silver was discovered after gold and copper about 4000 bce, when it ... Since virtually all the ores are sulfides, they are amenable to flotation separation, ... from which impurities such as antimony, arsenic, tin, and silver must be removed.
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Smelting is a form of extractive metallurgy; its main use is to produce a base metal from its ore. This includes production of silver, iron, copper and other base metals from their ores. ... The others – copper, lead, silver, tin, iron and mercury – occur primarily as minerals, though copper is occasionally found in its native state in...
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