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Extraction of gold using cyanide ... Elsener's equation occurs: 4Au + 8CN-+ O 2 + 2H 2 O ⇌ 4[Au(CN) 2]-+ 4OH-Exemplar for internal assessment resource Chemistry for Achievement Standard 91389 ... Now the slurry is now treated with either activated carbon or zinc to extract the gold. For the acti.


Extraction of gold using cyanide - nzqa.govt.nz

Extraction of gold using cyanide Gold is found in very low concentrations in the ore from which it is mined. To collect the gold from the ore it needs to be separated from the other minerals in the ore. To do this the gold needs to be made into a soluble form so that it can be separated ... Elsener's equation occurs: 4Au + 8CN-+ O 2


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Extraction of Gold - Element Gold, Au, Transition Metal

The extraction of gold by the cyanide-method is of great technical importance. It is effected by lixiviation with a solution of potassium cyanide, the gold being precipitated either by addition of zinc or electrolytically.


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