cupellation

(redirected from Cuppelation)
Also found in: Encyclopedia.
Related to Cuppelation: fire assay, Pattinson process, Parkes process

cu·pel·la·tion

 (kyo͞o′pə-lā′shən)
n.
A refining process for nonoxidizing metals, such as silver and gold, in which a metallic mixture is oxidized at high temperatures and base metals are separated by absorption into the walls of a cupel.

cupellation

(ˌkjuːpɪˈleɪʃən)
n
1. (Metallurgy) 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. (Metallurgy) the manufacture of lead oxide by melting and oxidizing lead
Translations