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DE1583865B1
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Process for dearsenic zinc
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Process and device for the continuous dezincification of lead containing zinc
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Method and apparatus for introducing sulfur into molten metals
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Method and device for removing copper from lead
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Process for treating the slag of a zinc shaft furnace
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Process for treating zinc cracker ashes containing arsenic and chloride flux
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Cooling device for molten lead circulating in condensers for condensing zinc vapor
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