quotfunction of naoh during leaching of gold ores

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Cyanide Leaching Of Gold - Mine Engineer

4 Au + 8(NaCN) +O2 + 2 H2O = 4 NaAu(CN)2 + 4 NaOH. That presumes that the only elements are the gold, Sodium Cyanide and water. However, as any geologist will tell you, no two ores are the same, and their chemical composition will vary greatly throughout the ore body. These "extra" elements in the mineral...

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Effect of pH Alkalinity on Gold Leaching - 911 Metallurgist

Mar 17, 2017 ... The role pH has in affecting gold leaching rates by cyanide and the functions of calcium hydroxide in cyanidation are as follow: 1. For safety and ... Researchers investigated the effect of calcium hydroxide and sodium hydroxide on the rate of dissolution of gold in cyanide solutions containing 0.10% NaCN.

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