• Copper Mining and Extraction Sulfide Ores

    Copper can be extracted from its ore by: Underground: sinking a vertical shaft into the Earth to an appropriate depth and driving horizontal tunnels into the ore. Open pit: 90% of ore is mined by this method. Ores near the surface can be quarried after removal of …

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  • Copper Ore Types: Sulfides vs. Oxides | An Investor''s ...

     · However, in some cases low-grade copper oxide ores can still be economically mined because they can be processed at a lower cost than copper sulfide ores. Oxidized copper orebodies may be treated ...

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  • Copper Mining and Extraction Sulfide Ores

    Copper can be extracted from its ore by: Underground: sinking a vertical shaft into the Earth to an appropriate depth and driving horizontal tunnels into the ore. Open pit: 90% of ore is mined by this method. Ores near the surface can be quarried after removal of the surface layers.

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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 ...

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  • Hydrogen Sulfide Corrosion: Its Consequences, Detection ...

    • Mechanism of Sulfide Corrosion Hydrogen sulfide corrosion can occur by two mechanisms: 1) acid attack resulting from the biological conversion of hydrogen sulfide gas to sulfuric acid in the presence of moisture, and 2) direct chemical reaction with metals such as copper, iron .and silver with hydrogen sulfide …

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  • Why is it too expensive to extract copper from land using ...

     · It''s too expensive to extract copper from land using traditional method because the quarrying and heating of the metal would result in an energy expenditure that would make mining copper ...

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  • 10 Reasons Not to Use Copper Sulfate for Water Treatment

     · Copper sulfate is known to build up once used, and can cause runoff water to become potentially hazardous to those who encounter it. Water that has been contaminated with copper sulfate can be harmful to crops, animals, and people. For this reason, copper sulfate is an unnecessary danger.

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  • Induced Polarization Surveys: A Copper Exploration Technique

     · The IP effect is particularly useful when detecting disseminated sulfide deposits, which include copper porphyry and strataform deposits. In fact, IP surveying is …

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  • Extracting iron and copper

    Copper is an example of this. Copper mostly occurs as sulfide ores, which are heated in air to convert them to copper oxide. Molten copper can be produced from copper oxide by heating with carbon:

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  • Industrial Minerals: 200 Years and Going Strong ...

    While a number of sulfide minerals are found in Vermont, including lead/zinc, copper, molybdenum and arsenopyrite, copper was the only mineral mined on a large scale. No metallic minerals are currently being mined in Vermont. The Orange County copper district ores were discovered in 1793, with production beginning in the early 1830s.

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  • Copper Mining and Processing: Processing Copper Ores ...

    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 most common types of ore, copper oxide and copper sulfide, undergo two different processes, hydrometallurgy and pyrometallurgy, respectively, due to the different ...

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  • 10 Most Deadly Rocks and Minerals

     · One would not just be a fool to mistake it for gold. Equally foolish would be a decision to pick up this mineral on a hike at a quarry, and proceed to use your hands to put trail mix in your mouth. Arsenopyrite is arsenic iron sulfide, which is the same type of mineral as pyrite (fool''s gold, iron sulfide), but with a heavy addition of arsenic.

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  • An improved, cost-effective catalyst for water-splitting ...

     · An improved, cost-effective catalyst for water-splitting devices. By replacing platinum with molybdenum in photoelectrochemical cells, scientists from two EPFL labs have developed a …

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  • Maine Geological Survey: A Collector''s Guide

     · Metal Sulfide Minerals. The sulfide minerals consist of various combinations of metals with the element sulfur. Sulfides of iron (pyrite, pyrrhotite), copper (chalcopyrite), zinc (sphalerite), and lead (galena) occur in Maine. These minerals are shiny …

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  • why is the extraction of pure copper expensive

    Q6. Copper is found in the Earths crust as an ore containing copper sulfide. Large areas of land, where this ore was once quarried, are contaminated with low percentages of copper sulfide. Copper would be too expensive to extract from this contaminated land using the traditional

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  • CHALCOCITE (Copper Sulfide)

    THE MINERAL CHALCOCITE. Chemistry: Cu 2 S, Copper Sulfide. Class: Sulfides. Uses: As a minor ore of copper and as mineral specimens. Specimens. Chalcocite is an important copper mineral ore. It has been mined for centuries and is one of the most profitable copper ores. The reasons for this is its high copper content (67% atomic ratio and nearly ...

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  • How to Invest in Copper Stocks | The Motley Fool

     · Copper sulfide deposits, while less abundant, contain higher amounts of copper. However, it''s more expensive to process copper sulfides, making it less economical than oxides in producing copper ...

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  • Innovations: Introduction to Copper: Mining & Extraction

    The barren rock, or gangue has to be separated from the sulfide minerals in order to smelt the metallic copper from the ore. By far the greatest proportion of copper is extracted from the sulfides of copper, iron and sometimes other metals. Such ores originate from sulfur-bearing volcanic magmas, which have separated into metal sulfides and siliceous melts.

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  • Copper sulfide

     · Copper sulfides describe a family of chemical compounds and minerals with the formula Cu x S y.Both minerals and synthetic materials comprise these compounds. Some copper sulfides are economically important ores.. Prominent copper sulfide minerals include Cu 2 S and CuS () the mining industry, the minerals bornite or chalcopyrite, which consist of mixed copper-iron sulfides, are …

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  • Local View: Copper mining threatens Northeastern Minnesota ...

     · Sulfide-ore copper mining has been deemed the most toxic industry in the U.S. by the Environmental Protection Agency. Peer-reviewed research …

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  • Recovery of Copper from Copper Sulfide Concentrate by ...

    A flotation copper sulfide concentrate collected from a copper smelting plant from Jilin province was used as the material for this study. Its chemical composition is presented in Table 1 in which metal components were de-termined by AAS, ICP-AES, X-Ray Fluorescence (XRF) and chemical analysis. 2.2. Experiment 2.2.1. Sulfation Roasting-Leaching ...

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  • Copper Concentrates

    Copper concentrate is the first commercial product of the copper production line and is composed of approximately equal parts of copper, iron and sulfide. Concentrates are the raw material for all copper smelters, which by processing it obtain an impure form of metallic copper, anode or blister copper, which is later used to produce high purity ...

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  • Copper Mining and Extraction: Oxide Ores

    Most of the copper ores mined today are oxide or sulfide ores. Extraction of sulfide ores is covered in more detail in Copper Mining and Extraction: Sulfide Ores (11–14), but is introduced here because an important by-product of this process is used for the extraction of oxide ores.

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  • Beware the Brass

    Copper can also fall prey to decay from exposure to hydrogen sulfide, a common constituent of polluted water. Brass, a metal that is almost synonymous with the sea, is actually a family of copper alloys whose primary ingredients, in varying ratios, are copper and zinc. In fact, some brasses are composed of as much as 50% zinc.

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  • Rockhounding in Alabama

    Copper. Although not a lot of collectors are interested in copper, it has high commercial worth. You can find it in Alabama in Cleburne Counties and Clay. These regions, in particular, have huge sulfide deposits. The copper occurs inside the sulfide as copper iron sulfide, which has a relatively high worth.

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  • Innovations in Copper: Mining & Extraction: Producing ...

    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.

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  • Sulfide Minerals

    Copper exists in a variety of sulfide minerals, of which the most important (quantitatively) is the mixed copper–iron sulfide chalcopyrite (generally notated as CuFeS 2, though a more accurate mineral formulation is probably CuFeS 1.5, as both copper and iron occur in their more reduced ionic forms).

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  • Clean energy? The world''s demand for copper could be ...

     · Pyrometallurgical techniques use heat to separate copper from copper sulfide ore concentrate, which again, are very similar to those used in many other countries, here: ... This a quarry near the top of a hill. ... All of this adds to the cost of substituting aluminum for copper. As copper gets more expensive aluminum gets more attractive. Just ...

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  • THE IMPORTANCE OF MINERALS AND MINING

    MINERALS LIMESTONE QUARRY HAUL TRUCKS COPPER PIPES BALL MILLS WATER TREATMENT PLANT ... COPPER SULFIDE There are two basic types of Copper minerals, sulfides and oxides. ... The largest trucks cost about $3.5 million. The largest tires are about 14ft in diameter, cost over $65,000 and due to the extremely tough working conditions rarely last ...

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  • Why is it too expensive to extract copper from land using ...

    Copper Ore Types: Sulfides vs. Oxides | An Investor''s ...

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  • A new way of extracting copper | MIT News | Massachusetts ...

     · "It is a one-step process, directly just decompose the sulfide to copper and sulfur. Other previous methods are multiple steps," Sahu explains. "By adopting this process, we are aiming to reduce the cost." Copper is in increasing demand for use in electric vehicles, solar energy, consumer electronics and other energy efficiency targets.

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  • The World''s 10 Most Deadly Minerals

    Precious minerals make the modern world go ''round—they''re used in everything from circuit boards to tableware. They''re also some of the most toxic materials known to science, and excavating them has proved so dangerous over the years, some have been phased out of industrial production altogether. Listed below are the 10 most deadly minerals on earth.

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  • The Do''s & Don''ts of Copper Sulfate in Ponds / Platinum ...

     · Copper sulfate (or Copper Sulphate) is an artificial compound that combines sulfur with copper. It''s made up of bright blue crystals (once known as Blue Vitriol or Bluestone) that dissolve in water. Don''t let its beautiful color fool you; it can be toxic depending on the copper content.

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  • Copper (Cu)

    The main ore is a yellow copper-iron sulfide called chalcopyrite (CuFeS2). Health effects of copper. Routes of exposition. Copper can be found in many kinds of food, in drinking water and in air. Because of that we absorb eminent quantities of copper each day by eating, drinking and breathing. The absorption of copper is necessary, because ...

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