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How do people get/ make metal from the Earth?

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How do people get/ make metal from the Earth? - PowerPoint PPT Presentation


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How do people get/ make metal from the Earth?. Matt Dunham. Metal ore. Metal ore comes from rocks with metal in them. Miners must process roughly 33 tons of rock and earth to produce a single ounce of gold.

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metal ore
Metal ore
  • Metal ore comes from rocks with metal in them.
  • Miners must process roughly 33 tons of rock and earth to produce a single ounce of gold.
  • After the rock is mined it is crushed in large machines to separate the rock from the metal.
  • http://science.howstuffworks.com/iron.htm
pig iron
Pig Iron
  • Pig iron is the middle product in iron production.
  • Liquid iron flows into a bed of sand and cools.
  • Pig iron has a very high carbon content.
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lron
  • Iron ore is smelted in a blast furnace at temperatures close to 3,000 degrees Fahrenheit.
  • Iron smelting leaves lead in the environment.
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Steel is iron that has most of the impurities removed.

  • The advantage of steel over iron is greatly improved strength
  • Open hearth furnace is pigironthepigopenhearthfurnace. It is heated to about 1, 600 degrees f
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  • Mrs.paige
  • Allison
  • Matt Dunham
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