Electro-metallurgical sentence example

  • Bismuth is extracted from its ores by dry, wet, or electro-metallurgical methods, the choice depending upon the composition of the ore and economic conditions.
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  • Copper is obtained from its ores by three principal methods, which may be denominated - (r) the pyro-metallurgical or dry method, (2) the hydro-metallurgical or wet method, and (3) the electro-metallurgical method.
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  • An electro-metallurgical process for the extraction of arsenic from its sulphides has also been proposed (German Patent, 67,973).
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