Champion
Champion : An alternative name for the English process for extracting zinc from its ores. The Champion family was active in several industries in Bristol in the 18th century. In 1738, William Champion was granted a patent for reducing sulfide ores, but the minimal wording of his claim made it ambiguous. His brother John was granted a related patent in 1758, which described in more detail the reduction of blende (zinc sulfide ore) with charcoal. The sulfide must first be converted to the oxide before it can be reduced to the metal
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