cupellation

British  

/ ˌkjuːpɪˈleɪʃən /

noun

1. 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

2. the manufacture of lead oxide by melting and oxidizing lead

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Example Sentences

Further, if we are to conclude its necessary association with silver, we must assume a knowledge of cupellation for the parting of the two metals.

From De Re Metallica, Translated from the First Latin Edition of 1556 by Agricola, Georgius

The use of sulphur or antimony sulphide would tend to part out a certain amount of silver, and thus obtain fairly pure bullion upon cupellation.

From De Re Metallica, Translated from the First Latin Edition of 1556 by Agricola, Georgius

Finally, in the same way that gold and silver are separated from lead in a cupel, so also are they separated in the cupellation furnace.

From De Re Metallica, Translated from the First Latin Edition of 1556 by Agricola, Georgius

This silver-lead is carried to the cupellation furnace, in which lead is separated from silver; of these methods I will mention only one, because in the previous book I have explained them in detail.

From De Re Metallica, Translated from the First Latin Edition of 1556 by Agricola, Georgius

Gold refined by cupellation Prior to 500 B.C.

From De Re Metallica, Translated from the First Latin Edition of 1556 by Agricola, Georgius