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"
1. Crush and mill the gold ore to dust like particles. Ore is put into the crusher, which breaks it up. Water is added during the process which, when mixed to the ore particles, creates
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heating it up, because of its high conductivity levels
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1. Wash two cups of fresh, organic stevia leaves well with clean, cool water. Pluck any brown or shriveled leaves from the bunch. Lay out leaves on sheets of absorbent paper towels
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Metals exist in nature in their most stable oxidation state and this is usually not (O) aka the metal form. for example Cu(II) Fe(III) Zn(II) Pb(II) reactivity has not that much to
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Ask.com Answer for: how is gold extracted from ores
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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Source: www.ehow.com
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.
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