cupellation
Britishnoun
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the process of recovering precious metals from lead by melting the alloy in a cupel and oxidizing the lead by means of an air blast
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the manufacture of lead oxide by melting and oxidizing lead
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
If we still maintain that molybdaena is hearth-lead, and galena is its equivalent, then this passage becomes clear enough, the second melting being cupellation.
From De Re Metallica, Translated from the First Latin Edition of 1556 by Georgius Agricola
They both recommend preserving this precipitate and its cupellation after melting with lead—which Agricola apparently overlooked.
From De Re Metallica, Translated from the First Latin Edition of 1556 by Georgius Agricola
The second wall is carried further when the rooms for the cupellation furnaces, or any other building, adjoin the rooms for the blast furnaces, these buildings being only divided by a partition.
From De Re Metallica, Translated from the First Latin Edition of 1556 by Georgius Agricola
The coppery skimmings from the cupellation furnace are referred to again in Note 28, p.
From De Re Metallica, Translated from the First Latin Edition of 1556 by Georgius Agricola
By this method the lead contained in the forehearth absorbs the silver, and the silver-lead is taken to the cupellation furnace.
From De Re Metallica, Translated from the First Latin Edition of 1556 by Georgius Agricola
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