Chapter 6 Copper Production Technology Pyrite, chalcopyrite, etc. Copper ore, other minerals, waste rock (gangue) Copper minerals, iron and other metallic pyrites, byproducts, and gangue cementation or solvent extraction Remove copper from pregnant Ieachate and remove some impurities
Example Extraction of Copper From Chalcopyrite (CuFeS 2) Mining digging or blasting to obtain the copper ore from the surrounding rock Crushing mined copper ore is crushed into very small pieces ; Grinding crushed copper ore is ground into a powder; Concentrating by flotation (also known as froth flotation or as ore flotation).
Bioleaching is the extraction of a metal from sulfide ores or concentrates using materials found native to the environment; namely, water, air and microorganisms. In other words, bioleaching is the commercialization of the ability of certain bacteria and archaea, found in nature, to catalyze the
The isolation of copper metal from leach liquor is a twostep process ( Copper Extraction Techniques ). The leach liquor obtained after heap irrigation has a very low concentration of copper dissolved into it, around 0.5 2.0 g/L.
At this stage of the process, the chemical reactions begin. They convert the copper minerals into copper metal. We can illustrate the types of process using the example of chalcopyrite CuFeS 2.From the formula, it is clear that iron and sulphur have to be removed in order to produce copper.
The copper(II) ions in the chalcopyrite are reduced to copper(I) sulphide (which is reduced further to copper metal in the final stage). The iron in the chalcopyrite ends up converted into an iron(II) silicate slag which is removed.
We rely on copper for power, lighting, heating, communications, water supply and transport. Copper makes our homes, schools and businesses efficient, comfortable and decorative and it lasts for many years. In this esource, well look at the ways of extracting copper from the ground. Copper has a remarkable combination of properties.
Initially, it may be easy to confuse chalcopyrite, or copper pyrite (CuFeS 2), with pyrite (FeS 2), but the two can be distinguished by their relative hardness and chalcopyrites iridescent tarnish. Pyrite is the harder of the two and cannot be easily scratched by a nail, unlike chalcopyrite.
Bioleaching is the extraction of a metal from sulfide ores or concentrates using materials found native to the environment; namely, water, air and microorganisms. In other words, bioleaching is the commercialization of the ability of certain bacteria and archaea, found in nature, to catalyze the oxidation of sulfide minerals.
A process for the extraction of copper from copper containing minerals such as chalcopyrite and bornite comprising the steps of comminuting the concentrate, having a particle size of at least 40 m, in a conventional attrition grinder and in the presence of a liquid dispersing agent, selected from the class consisting of ammonium hydroxide
The extraction of copper from asreceived chalcopyrite flotation concentrate, at a particle size of 100% 45 m, in solutions containing 0.4 M glycine at 60 176;C with 25 ppm DO, was 40.1%
It was reported that a thermophilic bacterial strain enhanced the extraction of molybdenum from molybdenite and copper from chalcopyrite. These organisms, Sulfolobus acldocaldarius and a close relative, ferrolobus are ordinarily found in the acid thermal waters of Yellowstone National Park.
The present work focuses on the extraction of Cu, suitable for production, directly from a leach solution of a chalcopyrite concentrate as an alternative to the conventional smelting and refining method.
The finely crushed ore is concentrated by Froth EXTRACTION OF COPPER IMPORTANT ORES OF COPPER Copper pyrite or chalcopyrite (CuFeS 2). Chalocite (Cu
Copper processing is a complicated process that begins with mining of the ore (less than 1% copper) and ends with sheets of 99.99% pure copper called cathodes, which will ultimately be made into products for everyday use.
The current practice of extracting copper from sulphidic ores such as chalcopyrite involves beneficiation through froth flotation, which produces a concentrate, followed by smelting and electro refining to produce copper metal.In the traditional pyrometallurgical processes, chalcopyrite concentrates are
3.1 Leaching of Chalcopyrite in Presence of Oxygen Gas Leaching of chalcopyrite in presence of oxygen gas, the effect of acid concentration, sodium chloride and temperature with time, on the extent of copper and iron present in the concentrate, has been investigated. The results are summarised and discussed in the following pages. 3.1.1.
Cobalt Ore, Cobalt Ore Suppliers and Manufacturers extraction of copper from chalcopyrite ore About 8% of these are other ore, 5% are copper ore, and 4% are other metals amp; metal products. Nickel and Cobalt Ores Mining amp;Dressing magnetic separator.
Extracting copper from its ores. The method used to extract copper from its ores depends on the nature of the ore. Sulfide ores such as chalcopyrite (\(CuFeS_2\)) are converted to copper by a different method from silicate, carbonate or sulfate ores.
Copper pyrite or chalcopyrite (CuFeS2). Chalocite (Cu2S) or copper glance. Following steps are involved in the extraction of copper. CONCENTRATION. Blocks of blister copper are used as anodes and thin sheets of pure copper act as cathodes. The cathode plates are coated with graphite in order to remove depositing copper.
Chalcopyrite is the primary mineral which by alteration and successive enrich with copper produces the series, starting with chalcopyrite and going through bornites (Cu 5 FeS), covellite (CuS), chalcocite (Cu 2 S) and ending rarely as native copper (Brantley, 2003).
Extraction of copper, zinc, nickel and cobalt in acid oxidative leaching of chalcopyrite at the presence of deepsea manganese nodules as oxidant
Copper Mining The commonest ore used in the extraction of copper is Chalcopyrite (CuFeS 2) also known as Copper Pyrites and other such sulfides.The percentage of copper in the actual ore is too low for direct extraction of copper to be viable.
Modern methods of extraction allow economic leaching and electrowinning of copper from lowgrade ores and extraction techniques are continuously being refined and developed to achieve the most efficient removal of copper from a wide variety of ores from sources around the globe.
The increase of the temperature leads to an increase of copper extraction rates from lowgrade copper ore as shown in Fig. 4. A maximum of 81.25% Cu was recovered at 60176;C as compared to other three temperatures i.e. 56.92% at 40176;C, 60.37% at 50176;C and 78.92% at 60176;C respectively.
This flowchart made of machinery icons explains or expresses in simple but clear terms the step of the Copper Mining and Copper Extraction Process. Starting from either openpit or underground mining and using a different relevant treatment method for oxide or sulphide copper mineral (ore).
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