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:
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—Edith Wharton (1862–1937)
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—Thomas Szasz (b. 1920)
“Neither by night’s ancient fear,
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Shall I fall to death’s feather.
By these I would not care to die,
Half convention and half lie.”
—Dylan Thomas (1914–1953)