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cupellation N

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cupellation (metallurgical process of separating noble metals from base metals) bergb

Monolingual examples (not verified by PONS Editors)

English

The gold and silver can then be recovered with cupellation. en.wikipedia.org

Cupellation involved removing the lead from a silver-rich alloy by oxidising the lead to litharge, leaving the silver behind. en.wikipedia.org

So the primary production of silver requires the smelting and then cupellation of argentiferous lead ores. en.wikipedia.org

The older and relatively simple method of cupellation can then be used to separate the silver from the lead. en.wikipedia.org

Metallic lead was demanded in quantity for silver cupellation, and the resulting litharge could be used directly by glassmakers. en.wikipedia.org

From the presence of lead in silver artefacts, archaeologists suggest that cupellation may have occurred there. en.wikipedia.org

Consequently, the reverberatory cupellation furnace was necessary to complete the process. en.wikipedia.org

The earlier process of cupellation had required at least 8 ounces (250 grams) of silver per ton of lead to be economic. en.wikipedia.org

Silver was also extracted during processing by means of a process known as cupellation. en.wikipedia.org

Then cupellation, crucibles, scorifiers and muffles are described. en.wikipedia.org

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