Iron ore mining and dressing

This article provides answers to the following questions, among others:

  • What is steel made of?
  • Which two main processes can be distinguished in steel production from iron ore?
  • What is ore smelting?
  • What are iron ores made of?
  • What is gangue?
  • What are iron ore deposits?
  • Why are iron ores processed?
  • What is the purpose of flotation and magnetic separation?
  • What is sintering and pelletizing of iron ores?
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Ironworks

This article provides answers to the following questions, among others:

  • What is charge?
  • What is meant by charging a blast furnace?
  • What is the function of the slag in the blast furnace process?
  • What is the slag used for?
  • What is a coking plant?
  • What is the difference between coal and coke?
  • How is the hot blast generated in Cowpers?
  • What is the function of the charging bells?
  • Why does the material to be loaded have to be pressure-resistant?
  • What is called tapping?
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Blast furnace process

This article provides answers to the following questions, among others:

  • Why is carbon used for the blast furnace process?
  • How important is the “Boudouard reaction” for the blast furnace process?
  • What chemical processes distinguish indirect reduction from direct reduction of iron ores?
  • What is carburization?
  • How much carbon does pig iron contain?
  • What is the difference between metastable and stable solidification?
  • What is “grey pig iron” and “white pig iron”?
  • In which “solidification form” is pig iron mostly tapped?
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From crude steel to steel

This article provides answers to the following questions, among others:

  • What is secondary metallurgy?
  • What is rimmed steel, semi-killed steel and killed steel?
  • For what purpose is vacuum treatment carried out?
  • How does the electro-slag remelting (electro-flux remelting) work?
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