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US735098A
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Process of obtaining lead or other metals from ores or mattes.
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GB190015873A
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Improvements relating to the Manufacture of Alkali Salts and By-products therefrom.
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US704640A
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Process of extracting copper and nickel from sulfid compounds.
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US704641A
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Process of extracting zinc or other metals from their ores.
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CA85964A
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Zinc extraction
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US669926A
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Process of electrolytical extraction of metals.
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US704036A
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Process of separating alkali-metal sulfates from mixed solutions.
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US704639A
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Leaching and extraction of metals from their ores.
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US663759A
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Process of producing solutions of zinc chlorid, & c.
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US629856A
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Process of extracting lead, zinc, or silver from complex sulfidic ores.
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US664269A
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Process of recovering zinc.
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US629686A
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Process of extracting zinc from its ores.
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US629685A
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Electrolytical production of zinc or other metals.
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GB189517505A
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Improvements in Electrodes.
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GB189508328A
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Improvements in and relating to the Treatment of Ores or Materials Containing Zinc, Lead, and Silver.
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CA51780A
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Electrolytical production of oxid and carbonate of nickel
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GB189411724A
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Improvements in the Treatment of Calamine and similar Minerals or Compounds for the Extraction of Zinc.
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GB189411307A
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An Improved Method or Process for the Treatment of the Ores of Nickel and Cobalt.
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GB189410952A
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Improvements in Electrodes.
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GB189313336A
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Improvements in the Electrolytical Production of Nickel and other Metals.
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