How Is Gold Extracted from Ores?

Answer

Gold is extracted by first getting the gold ore from the mines. Then separating the impurities from the real gold and this is usually done using cyanide. The gold ore is placed into a tank that contains a weak cyanide solution, zinc is added and a chemical reaction which separates the gold from the ore. Pure gold is removed from the solution with a filter press.
Q&A Related to "How Is Gold Extracted from Ores"
Gold is usually found alone or alloyed with mercury or silver, but can also be found in ores such as calaverite, sylvanite, nagyagite, petzite and krennerite. Most gold ore now comes
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using mercury. Also gold can be recovered by treating the gold ore with with a solution containing cyanide.
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Gold is extracted from the earth through mining, dredging, and panning. Mining and dredging are similar, and involve the process of removing the gold ore from the ground. Panning
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The cheapest way is cyanide leaching. A basic (pH) solution of cyanide is dripped over a pile of gold ore. The solution dissolves the gold out of the rocks and can then be separated
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How Is Gold Extracted From Gold Ore?
Gold is usually found alone or alloyed with mercury or silver, but can also be found in ores such as calaverite, sylvanite, nagyagite, petzite and krennerite. Most gold ore now comes from either open pit or underground mines. The ores sometimes... More »
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Gold is extracted from ores through the use of cyanide. Ore is put into a tank containing a weak cyanide solution and zinc is added and the chemical reaction separates the gold from the ore. Another method of extraction is the carbon-in-pulp method whereby the ore is mixed with water before cyanide is added. Carbon is then added to bond with the gold and the carbon-gold particles are put into a caustic carbon solution, separating out the gold.
Explore this Topic
An ore is a type of rock that contains minerals, including metal. These are often extracted through mining. Example of ores include argentite, hematite, gold, ...
Tulane University defines an ore as a body of material from which one or more valuable substances can be extracted. For example, bauxite ore is mined and refined ...
Zinc is extracted from its ore by calcination to remove the sulphur converting zinc to an oxide. The next step is to smelt the particular oxide with carbon where ...
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