Gold Refining and Parting
Gold parting is primarily the removing of silver from gold and therefore increasing the purity of gold. The parting of gold from silver has been done since ancient times starting in Lydia in the 6th century BC. Various techniques have been practised; salt cementation from ancient times, parting using distilled mineral acids from medieval times, and in modern times using chlorination using the Miller process and electrolysis using the Wohlwill process.
Read more about this topic: Gold Extraction
Famous quotes containing the words gold, refining and/or parting:
“‘Tis not the balm, the sceptre, and the ball,
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...
Not all these, laid in bed majestical,
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—William Shakespeare (1564–1616)
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“I can hear, underground, that sucking and sobbing,
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—Theodore Roethke (1908–1963)