Gold cyanidation (also known as the cyanide process or the MacArthur-Forrest process) is a metallurgical technique for extracting gold from low-grade ore by converting the gold to a water soluble coordination complex. It is the most commonly used process for gold extraction. Production of reagents for mineral processing to recover gold, copper, zinc and silver represents approximately 13% of cyanide consumption globally, with the remaining 87% of cyanide used in other industrial processes such as plastics, adhesives, and pesticides. Due to the highly poisonous nature of cyanide, the process is controversial and its usage is banned in a number of countries and territories.
Read more about Gold Cyanidation: History, Chemical Reaction, Application, Recovery of Gold From Cyanide Solutions, Cyanide Remediation Processes, Effects On The Environment
Famous quotes containing the word gold:
“Daughter to that good Earl, once President
Of England’s Council and her Treasury,
Who lived in both, unstain’d with gold or fee,
And left them both, more in himself content.
Till the sad breaking of that Parliament
Broke him, as that dishonest victory
At Chaeronea, fatal to liberty,
Kill’d with report that old man eloquent;—”
—John Milton (1608–1674)