Gold extraction - WikipediaGold extraction refers to the processes required to extract gold from its ores. This may require a . The gold could not be extracted from this compound with any of the then available chemical processes or technologies. In 1887 . Ores in which gold occurs in chemical composition with other elements are comparatively rare.non chemical gold ore refining,Going for gold: Alternative processing methods | Australian MiningJan 17, 2014 . Importantly, unlike coal processing, gold processing currently involves . the gold requiring larger amounts of the toxic chemical which increases the . its stability and rate of gold recovery is typically not as good as cyanide.
non chemical gold ore refining