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  • pros and cons of mining metals ores by charlotte Prezi

    pros and cons of mining metal ores The amount produced in the world each year (including scrap) Disadvantages of mining ores 1) Since mining sites are usually in the forest areas, trees will be cut while people are getting to these places. 2) Workers might die due to accidents.

  • What are the advantages and disadvantages of mining ores

    The advantages of surface mining are: * It is cheaper to extract the ore or metal than underground mining * Less chance of workers dying from toxic fumes, therefore it is safer unlike underground

  • Processes extraction, mining, smelting, refining

    An ore is a rock containing enough valuable mineral to make it worth extracting. In the case of copper, it is worth extracting when there is about 2 kg of copper per 1,000 kg of ore (0.2%). Copper minerals are found in over one hundred varieties, although only a few have been worked for copper on a large scale. The most abundant ores are chalcopyrite and bornite, which contain both copper and

  • Biological methods of metal extraction Higher BBC

    Plants absorb mineral ions through their roots. Phytoextraction makes use of this: Suggest reasons why phytoextraction decreases the damage done to the environment. Mining for metal ores involves

  • Advantages And Disadvantages Of Mining Iron Ore

    Disadvantages of iron ore mining . advantages of iron ore mining Grinding Mill China What are the advantages and disadvantages of mining It is cheaper to extract the ore or metal than underground What are the advantages and disadvantages of blast . Get Details; Disadvantages Of Mining Iron Ore BINQ Mining. Nov 16, 2012 · disadvantages and advantages of iron ore mining Grinding Mill .

  • Advantages Of Recycling Aluminium TheWorldCounts

    There are many advantages of recycling aluminium. Since it takes more energy to dig up and produce aluminium than any other metal, recycling not only avoids resources to be extracted from Earth, it also saves energy lots of energy! Half of all aluminium cans are recycled. That's a total of 105 million cans a year. This is enough to build more than 70,000 Boeing 737 airplanes almost 10

  • Extracting Ores Mining Of Mineral Resources Siyavula

    Most of the methods however, make use of chemistry to extract the metal from the compound or remove impurities from the final product. We will discuss the extraction of iron from iron ore as an example. Extraction of iron. Iron atoms are found in the compounds FeO, Fe 2 O 3 and Fe 3 O 4 and in rocks like haematite and magnetite. South Africa is

  • 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

  • Advantages and disadvantages of mineral mining Answers

    The advantages of surface mining are: * It is cheaper to extract the ore or metal than underground mining * Less chance of workers dying from toxic fumes, therefore it is safer unlike underground

  • advantages and disadvantages of mining metal ores

    What are the advantages and disadvantages of mining ores. Advantages: 1)Mining of ores will enable people to get useful It is cheaper to extract the ore or metal than underground. What disadvantages or advantages are there »More detailed

  • What Are The Advantages And Disadvantages Of

    Open Pit Mining Pros & Cons. Open pit mining -- or strip mining -- is an extraction process for ore or fossil fuels that takes place at the surface of a mining site. Read more Mining Of Copper History Of Copper Mining Advantages Of

  • Environmental impact of iron ore mining Wikipedia

    Mining and processing. Common methods of extracting the iron ore consist of blasting, drilling, or general excavating,,. Most iron ore is produced from open-pit mines. After the iron ore is out of the ground, it may be shipped to the iron and steel manufacturing plant. If the ore contains less than 60 percent iron, it is usually beneficiated to

  • Advantages of recycling iron, rather than extracting

    18/03/2013· Well by recycling Iron instead of mining for it we:-dont have to destroy natural habitats-pollute natural habitats, including water if there is a leak of chemicals.-It cost less to recycle Iron and it takes less energy.

  • The Advantages of Open Pit Mining Sciencing

    Open pit mining does offer some advantages over traditional deep shaft mining. Pit mining is more cost effective than shaft mining because more ore can be extracted and more quickly. The working conditions are safer for the miners because there is no risk of cave in or toxic gas. Open pit mining

  • Bioleaching Wikipedia

    Bioleaching is the extraction of metals from their ores through the use of living organisms. This is much cleaner than the traditional heap leaching using cyanide. Bioleaching is one of several applications within biohydrometallurgy and several methods are used to recover copper, zinc, lead, arsenic, antimony, nickel, molybdenum, gold, silver, and cobalt. Process. Bioleaching can involve

  • advantages mining ores pour-un-reveil-ecologique

    Mining is the extraction of valuable minerals or other geological materials from the earth, usually from an ore body, lode, vein, seam, reef or placer deposit. These deposits form a mineralized package that is of economic interest to the miner. Ores recovered by mining include metals, coal, oil shale, gemstones, socio economic benefits of mining using host country regulatory initiatives.

  • disadvantages of iron extraction « BINQ Mining

    9/06/2013· 6. Environmental Impact and Economics of Metal Extraction mining . It doesn't matter whether you are mining and processing iron ore or limestone, many of the advantages and disadvantages are common to these operations. »More detailed

  • What Are The Advantages Of Mining Metal Ores

    advantages and disadvantages of mining metal ores What are the advantages and disadvantages of mining ores. Advantages: 1)Mining of ores will enable people to get cheaper to extract the ore or metal than underground.

  • Biological methods of metal extraction Higher BBC

    There are some alternative methods to extract metals. from low-grade copper ores that use living organisms. These have advantages and disadvantages compared to the usual extraction methods