how is metal and stone extract from its ore

  • How Are Metals Extracted From Their Ores? |

    How Are Metals Extracted From Their Ores? |

    A: Metal extraction from ores occurs in many different ways involving physical, chemical and electrical means. Even ores of the same metal sometimes require different methods of separation depending on the concentration of the metal and its chemical composition within the ore.

  • Types of Extraction | Scool, the revision website

    Types of Extraction | Scool, the revision website

    Methods of extraction. An ore is usually a compound of the metal mixed with impurities. When the metal is dug up, a method must be used to separate the metal from the rest of the ore. This is called extracting the metal. The method of extraction depends on how reactive the metal is. The more reactive the metal, the more difficult it is to extract from its compound.

  • Smelting

    Smelting

    Ore Smelting. In nature, the ores of metals such as iron, copper, lead, aluminum and othe metals are found impure states, often oxidized and mixed in with silicates of other metals. During smelting when the ore is exposed to high temperatures, these impurities are .

  • why was copper one of the first metals to be extracted ...

    why was copper one of the first metals to be extracted ...

    Oct 18, 2007· Answers. Gold, silver, and copper were the first metals used because they are found in the elemental state. Most metals found in nature are combined with other elements such as oxygen and sulfur. Since energy is needed to extract metals from these compounds or ores, the ease with which a given metal could be extracted from its ore,...

  • extraction of aluminium metal from its ore

    extraction of aluminium metal from its ore

    extraction of aluminium metal from its ore offers 5,002 extract mine products. About 1% of these are herbal extract, 1% are food additives, and 1% are tea extract. Mining Ore Extraction Of Iron Mining Iron Ore . The Mining Process Extraction Classification, Concentration, Recovery of Metals, Minerals from Placer or Alluvial Fields.

  • Extraction of Aluminium

    Extraction of Aluminium

    Extraction of aluminium. Aluminium is extracted from it's ore by electrolysis. The electrolyte has to be molten ore, if a solution was used (as in the extraction of copper) hydrogen gas would be produced instead of the pure metal.

  • extraction of magnesium from its ore

    extraction of magnesium from its ore

    extraction of magnesium from its ore Magnesium is extracted from its ores by one of two processes. sulfates of metals such as calcium, Posts Related to how to extract magnesium from its ore.

  • The Blast Furnace | Scool, the revision website

    The Blast Furnace | Scool, the revision website

    How to extract iron from its ore The method Three substances are needed to enable to extraction of iron from its ore. The combined mixture is called the charge: Iron ore, haematite often contains sand with iron oxide, Fe2O3. Limestone (calcium carbonate). Coke mainly carbon. The charge is placed a giant chimney called a blast furnace. The blast furnace is around 30 metres high and lined ...

  • How iron is made material, manufacture, making, history ...

    How iron is made material, manufacture, making, history ...

    Because iron was a far superior material for the manufacture of weapons and tools than any other known metal, its production was a closely guarded secret. ... depending on the region from which the iron ore was taken and the method used to extract the iron. ... are iron ore, coke, sinter, and limestone. Iron ores are mainly iron oxides and ...

  • Iron Ore: Sedimentary Rock Pictures, Definition More

    Iron Ore: Sedimentary Rock Pictures, Definition More

    Iron ore is a chemical sedimentary rock that people have used as an important source of metal. ... It is the mostused metal by both tonnage and purpose. Rock Mineral Kits: Get a rock, mineral, or fossil kit to learn more about Earth materials. The best way to learn about rocks is to have specimens available for testing and examination.

  • An Introduction to the Chemistry of Metal Extraction ...

    An Introduction to the Chemistry of Metal Extraction ...

    An ore is any naturallyoccurring source of a metal that you can economically extract the metal from. Aluminum, for example, is the most common metal in the Earth's crust, occurring in all sorts of minerals. However, it isn't economically worthwhile to extract it from most of these minerals.

  • EXTRACTION OF COPPER

    EXTRACTION OF COPPER

    EXTRACTION OF COPPER FROM SULPHIDE ORE Large amount of copper are obtained from copper pyrite (CuFeS2) by smelting. Ores containing 4% or more copper are treated by smelting process. Very poor ores are treated by hydrometallurgical process. EXTRACTION OF COPPER BY SMELTING PROCESS Following steps are involved in the extraction of copper.

  • yr 11 syllabus questions on metal Bored of Studies

    yr 11 syllabus questions on metal Bored of Studies

    Apr 09, 2010· ) Explain why energy input is necessary to extract a metal from its ore ) Identify why there are more metals available for people to use now than there were 200 years ago ) Gather, process, analyse and present information from secondary sources on the range of alloys produced and the reasons for the production and use of these alloys

  • How Is Aluminium Extracted From Bauxite Ore ...

    How Is Aluminium Extracted From Bauxite Ore ...

    The process to extract the aluminium from its ore is a seemingly complex and time consuming one, and it goes as follows: Bauxite Mining The first step in the process is to mine the bauxite from the earth, mostly from underground deposits (the largest ones can be found in Southern Europe and Hungary). The bauxite is blasted loose and washed to ...

  • Extracting Gold | HowStuffWorks

    Extracting Gold | HowStuffWorks

    Removing the goldbearing rock from the ground is just the first step. To isolate pure gold, mining companies use a complex extraction process. The first step in this process is breaking down large chunks of rock into smaller pieces. At a mill, large machines known as crushers reduce the ore to pieces no larger than road gravel.

  • How Is Aluminium Extracted From Bauxite Ore ...

    How Is Aluminium Extracted From Bauxite Ore ...

    The process to extract the aluminium from its ore is a seemingly complex and time consuming one, and it goes as follows: Bauxite Mining The first step in the process is to mine the bauxite from the earth, mostly from underground deposits (the largest ones can be found in Southern Europe and Hungary).