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The most important method for copper extraction from chalcopyrite is pyrometallurgy. Pyrometallurgy is commonly used for large scale, copper rich operations with high-grade ores. [22] This is because Cu-Fe-S ores, such as chalcopyrite, are difficult to dissolve in aqueous solutions. [23] The extraction process using this method undergoes four ...
The Chino open-pit copper mine in New Mexico Chalcopyrite specimen from Huarón mine, Peru. Copper extraction refers to the methods used to obtain copper from its ores.The conversion of copper ores consists of a series of physical, chemical, and electrochemical processes.
Copper is present as chalcopyrite, occurring with magnetite, pyrite, garnet, epidote, diopside, and hornblende, in replacement deposits in greenstone. Gold and silver were recovered as byproducts. [13] Copper was discovered at Prince William Sound in 1897. Deposits were associated with pillow basalts alterered to greenstone.
Copper resources are estimated to exceed 5,000 million tonnes. [152] [153] Bolstering the supply from copper extraction is the more than 30 percent of copper installed from 2007 to 2017 that came from recycled sources. [154] Its recycling rate is higher than any other metal. [155]
A simplified scheme illustrating how to obtain copper by using bioleaching of chalcopyrite. One of the largest applications of these leaching methods is in the mining of copper Acidithiobacillus ferrooxidans has the ability to solubilize copper by oxidizing the reduced form of iron (Fe2+) with sulfur electrons and carbon dioxide. [23]
Extractive metallurgy is a branch of metallurgical engineering wherein process and methods of extraction of metals from their natural mineral deposits are studied. The field is a materials science, covering all aspects of the types of ore, washing, concentration, separation, chemical processes and extraction of pure metal and their alloying to suit various applications, sometimes for direct ...
Bioleaching is the extraction or liberation of metals from their ores through the use of living organisms.Bioleaching is one of several applications within biohydrometallurgy and several methods are used to treat ores or concentrates containing copper, zinc, lead, arsenic, antimony, nickel, molybdenum, gold, silver, and cobalt.
Flash smelting (Finnish: Liekkisulatus, literally "flame-smelting") is a smelting process for sulfur-containing ores [1] including chalcopyrite. The process was developed by Outokumpu in Finland and first applied at the Harjavalta plant in 1949 for smelting copper ore. [2] [3] It has also been adapted for nickel and lead production. [2]