Gold extraction - WikipediaGold extraction refers to the processes required to extract gold from its ores. This may require a . According to de Lecerda and Salomons (1997) mercury was first in use for extraction at .. acids from medieval times, and in modern times using chlorination using the Miller process and electrolysis using the Wohlwill process.first chlorine mill gold,Alternative Gold Leaching Methods - January 2014 (Vol. 83, No. 5 .Chlorine was the only commercially available chemical for leaching gold . First is that the materials used to handle the liquids and slurries during .. These are the accuracy of the assay and the effectiveness of the mill for the gold recovery.Extracting Gold | HowStuffWorksRemoving the gold-bearing rock from the ground is just the first step. . At a mill, large machines known as crushers reduce the ore to pieces no larger than road.
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