sulfide ores copper

Sulfide Ore - an overview | ScienceDirect Topics

The common route for turning copper sulfide ores into metal is high temperature oxidation of sulfides to produce an impure liquid copper. This is cast into slab-like anodes. Principal impurities are iron and precious metals (gold and silver).

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Innovations: How Hydrometallurgy and the SX/EW Process ...

To be applicable to this process, the ores must contain copper minerals in sulfide form; as mineral such as Chalcocite (Cu 2 S), Chalcopyrite (CuFeS 2) and Covellite (CuS) . In the concentrating operations these minerals are separated from the gangue material of the ore, that might contain as little as 0.5% copper to form a concentrate containing 27 to 36% copper.

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Copper sulfide - Wikipedia

Innovations: Introduction to Copper: Mining & Extraction

The techniques for extraction of copper from oxidized ores are quite different from those employed for the sulfide ores. The oxidized ores, consisting of the silicates, carbonates and sulfates, are treated by several methods, all involving some form of leaching of the crushed ore with sulfuric acid to produce impure solutions of copper sulfate.

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Types of Copper Deposits in the World | INN

Types of ore; There are two distinct types of copper deposits: sulfide ore and oxide ore. Currently, the most common source of copper ore is the sulfide ore mineral chalcopyrite, which accounts ...

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Copper

About 80% of the world's primary copper comes from ores in which copper is present as a sulfide mineral, for example, chalcopyrite (CuFeS 2) (the most abundant copper ore), bornite (Cu 5 FeS 4) and chalcocite (Cu 2 S). These ores contain typically only about 0.5-2% copper.

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EXTRACTING METALS FROM SULFIDE ORES - Electrochemical .

Another example is the treatment of ores containing copper sulfide (chalcocite) and copper iron sulfide (chalcopyrite), together with molybdenum disulfide (molybdenite). The usual practice is to float both copper and molybdenum minerals in the first stage, leaving .

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Sulfide - Wikipedia

Sulfide (British English also sulphide) is an inorganic anion of sulfur with the chemical formula S 2− or a compound containing one or more S 2− ions. Solutions of sulfide salts are corrosive. Sulfide also refers to chemical compounds large families of inorganic and organic compounds, e.g. lead sulfide and dimethyl sulfide. Hydrogen sulfide (H 2 S) and bisulfide (SH −) are the conjugate ...

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Copper sulfide ore: Mineral information, data and localities.

A copper ore where the primary copper ore minerals are sulfides. SUPPORT US . If mindat is important to you, click here to donate to our Fall 2019 fundraiser!

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The Threat of Sulfide Mining — Friends of the Boundary ...

Sulfide mining, which is sometimes referred to as hard-rock mining, is the process of extracting trace amounts of copper, nickel and other metals from sulfide ores. When sulfide ore comes into contact with water or oxygen, a chemical reaction occurs and produces sulfuric acid, .

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The Mineral Gallery - Sulfides Class

The Sulfide Class minerals comprise an economically important class of minerals. Most major ores of important metals such as copper, lead and silver are sulfides. Strong generalities exist in this class. The majority of sulfides are metallic, opaque, generally sectile, soft to average in hardness and they have high densities, black or dark-colored streaks, and an igneous origin.

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Sulfide Ores - an overview | ScienceDirect Topics

Cobalt–copper sulfide ores are being exploited in several Democratic Republic of Congo and Zambia mines (Katanga, 2010). Cobalt and copper are extracted in the following steps: (a) flotation; (b) sulfation roasting; (c) leaching (sometimes along with additional oxide concentrate or ore); (d) solvent extraction separation of copper from cobalt; (e)

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Copper Mining and Processing: Processing of Copper Ores ...

The most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different chemistries of the ore. Copper oxides are more abundant near the surface, but are considered low-grade ore, with a lower concentration of copper. Although this requires more ore to be extracted and processed, this process is less .

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Copper processing - Ores | Britannica

Copper processing - Copper processing - Ores: Principal forms in which copper ores are found include native copper, porphyry copper, massive deposits, and mixed ores. Native copper is simply the metal found unadulterated in nature. Occasionally copper is still found in its native form, but more frequently it is mixed with other minerals, some of which may have value themselves.

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Copper Ore Types: Sulfides vs. Oxides | INN

Copper sulfide ores are typically the most profitable types of copper ores to mine. That is because they have high copper content, and the copper in them can more easily be separated from unwanted ...

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SULFIDE MINING - Minnesota Center for Environmental ...

Sulfide mining, unfortunately, poses several significant environmental risks. The most significant one is the threat to water quality. When sulfide ores are exposed to air and water, the result is sulfuric acid, which causes the leaching of potentially toxic heavy metals and the release of sulfates that contribute to the methylation of mercury.

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Copper Production: How Is Copper Made? - The Balance

Virtually all sulfide-type copper ores, including chalcocite (Cu 2 S), chalcopyrite (CuFeS 2) and covellite (CuS), are treated by smelting. After crushing the ore to a fine powder, it is concentrated by froth flotation, which requires mixing the powdered ore with reagents that combine with the copper .

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Sulfide Ore | Article about Sulfide Ore by The Free Dictionary

Sulfide Ore any of several natural mineral formations consisting of metal sulfides. Metal selenides, tellurides, arsenides, and antimonides are also classified among the sulfide ores. Sulfide ores are an important source for the production of Ni, Co, Cu, Zn, Pb, Mo, Bi, Sb, and Hg. They contain not only sulfides but also other minerals, including ...

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Copper sulfide ore value chain - Outotec

Extract maximum value with minimum environmental impact when processing sulfide copper ores. We understand the intricate challenges and have the expertise and experience to design and optimize solutions to suit your specific ore type and – from complete concentrator plants to specific equipment.

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Copper Extraction from Sulfide Ores - Latest Contents

This process is used for the extraction of copper from low grade sulfide ore. In this process, the crushed and ground ore in bulk (about 100,000 tons) is exposed to air and water in big tanks. The air in the presence of water gradually oxidizes copper and iron sulphides to their surphides.

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What is Sulfide Mining? | Mining Action Group

Metallic sulfide mining (aka hard rock mining) is the practice of extracting metals such as nickel, gold and copper from a sulfide-rich ore body. Sulfides are a geologic byproduct of mining in this area, and by exposing sulfides to the air and water in our atmosphere, sulfuric acid can be created — threatening to poison the nearby water, environment, and communities.

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Copper Mineral | Uses and Properties

Uses of Copper. Today most copper is produced from sulfide ores. Copper is an excellent conductor of electricity. Most copper mined today is used to conduct electricity - mostly as wiring. It is also an excellent conductor of heat and is used in cooking utensils, heat sinks, and heat exchangers.

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Chapter 12: Flotation of Copper Sulfide Ores | Engineering360

Copper sulfide ores, where the pyrite content can vary from 10% to 90%. The predominant sulfide mineral in this ore is pyrite, but may also contain pyrrhotite and mar-casite. Some copper sulfide ores also contain significant quantities of gold and silver.

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Sulfide Ore | Article about Sulfide Ore by The Free Dictionary

Sulfide Ore. A distinction is made between massive ores, in which sulfides are predominant, and disseminated ores, in which nonsulfide minerals are predominant. Sulfide ores may be simple or complex. Complex sulfide ores containing sulfides of copper, zinc, and lead are especially common, as are complex copper, nickel, cobalt, antimony,...

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Treatment of Mixed Sulfide Oxide Ores of Copper

Treatment of Mixed Sulfide Oxide Ores of Copper. The large porphyry mines, with a total copper content of from 1.3 to 2.0 per cent., send to their mills ore with an oxide content of from 0.2 to 0.4 per cent. While the recoveries of the sulfide minerals are considered satisfactory, using .

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A new way of extracting copper | MIT News

Jun 28, 2017 · A new way of extracting copper. These sulfide minerals are compounds where the metal and the sulfur elements share electrons. In their molten state, copper ions are missing one electron, giving them a positive charge, while sulfur ions are carrying two .

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The Extraction of Copper - Chemistry LibreTexts

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.

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Heap Leaching Oxide and Sulfide Copper Ores

Heap leaching is a simple means of recovering copper from oxide and oxide-sulfide ores. Although this method requires relatively low capital investment, it suffers from low copper recoveries and relatively high acid consumption.

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Copper Mine, Techniques,Ores, Mines, Occurence, Processing ...

Copper is extracted in large amounts from the Earth's crust by mining of sulphide ores and also oxide ores. The procedure of copper processing involves mining and transporting. Oxide ores are generally processed through hydrometallurgy- heap leaching, solvent extraction and electrowinning. The sulfide ores are usually processed using the method of pyrometallurgy- froth floatation, thickening ...

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How copper is made - material, used, processing, steps ...

Pure copper is rarely found in nature, but is usually combined with other chemicals in the form of copper ores. There are about 15 copper ores mined commercially in 40 countries around the world. The most common are known as sulfide ores in which the copper is chemically bonded with sulfur.

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