The stages of gold production

۱.Gold Ore Extraction

Mining: Gold-bearing rocks are extracted from mines. This stage involves drilling, crushing, and transporting the rocks to the processing plant.

Choosing the Extraction Method: Depending on the type of rock and mining conditions, various methods such as open-pit or underground mining are selected.

۲. Crushing and Grinding

Crushing the Rocks: The extracted rocks are crushed and ground in industrial mills to be converted into smaller particles.

Ball Mill: In this stage, a ball mill is used for further grinding and preparation for gold separation.

۳. Gold Separation

Flotation: The crushed materials are mixed with specific chemicals that cause gold particles to attach to the surface of the water.

Cyanidation: This is a common method of gold extraction in which gold is separated from the rocks using a cyanide solution.

Carbon in Pulp (CIP) or Carbon in Leach (CIL): In these methods, gold is absorbed from the cyanide solution by activated carbon and then separated from it.

۴. Concentration and Melting Gold Concentration: The separated gold is concentrated using physical and chemical methods, and impurities are removed from it. Melting: Gold is melted in industrial furnaces and formed into bars or pellets, with impurities being removed.

5. Gold Refining Chlorination: In this method, gold is converted to gold chloride and separated from impurities. Electrowinning: In this stage, gold is extracted from chemical solutions using electric current, resulting in purer gold.

6. Casting and Bar Production Casting: The pure melted gold is poured into special molds to form bars. Weighing and Stamping: The produced bars are weighed and stamped before being offered to the market. Laboratories: The quality and purity of the produced gold are examined in specialized laboratories. Packaging: The gold bars are packaged and offered for sale and distribution in the market.

“This process may vary slightly depending on technology and mining conditions, but generally, the gold production process is carried out in this manner.”