Eco-friendly Gold
Leaching Reagent
The principle of gold extraction by using mercury (amalgamation method) is mainly that after the mercury is added to the slurry, the surface of the gold particles is wetted by mercury, and then the mercury diffuses into the interior of the gold particles, causing a chemical reaction. Au+2Hg=AuHg2. Finally, the solid of Au3 Hg will form. When the obtained solid matter is heated, the mercury will volatilize into an elemental form, and the gold will exist in the form of sponge gold.
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Gold gravity separation refers to the gold extraction and separation process making use of different moving speed and direction of mineral with different particle sizes, traits and proportion under the combined action of gravity, centrifugal force, medium resistance and mechanical resistance
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Gold Cyanidation is a method in which gold is extracted from gold-bearing ores using aqueous solution of cyanide as solvent, and then gold is extracted from gold-bearing leaching solution. It includes cyanide leaching process and deposition gold extraction process.
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The mining and extraction of gold from sand are usually carried out simultaneously. Separating gold from sand consists of four steps: crushing and screening, removing slime from gold sand, separation, thickening and dewatering stage.
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