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  2. Blast furnace - Wikipedia

    en.wikipedia.org/wiki/Blast_furnace

    In a blast furnace, fuel , ores, and flux are continuously supplied through the top of the furnace, while a hot blast of air (sometimes with oxygen enrichment) is blown into the lower section of the furnace through a series of pipes called tuyeres, so that the chemical reactions take place throughout the furnace as the material falls downward.

  3. Boudouard reaction - Wikipedia

    en.wikipedia.org/wiki/Boudouard_reaction

    The Boudouard reaction is an important process inside a blast furnace. The reduction of iron oxides is not achieved by carbon directly, as reactions between solids are typically very slow, but by carbon monoxide. The resulting carbon dioxide undergoes a (reverse) Boudouard reaction upon contact with coke carbon.

  4. Direct reduction (blast furnace) - Wikipedia

    en.wikipedia.org/wiki/Direct_reduction_(blast...

    For blast furnaces, direct reduction corresponds to the reduction of oxides by the carbon in the coke. However, in practice, direct reduction only plays a significant role in the final stage of iron reduction in a blast furnace, by helping to reduce wustite (FeO) to iron. In this case, the chemical reaction can be trivially described as follows ...

  5. Octave Boudouard - Wikipedia

    en.wikipedia.org/wiki/Octave_Boudouard

    Between these extremes a mixture of the carbon monoxide, carbon dioxide and soot is produced [5] Understanding the reaction is a significant factor in the design of blast furnaces where the goal is to maximize use of fuel while minimizing production of soot. [6]

  6. Metallurgical furnace - Wikipedia

    en.wikipedia.org/wiki/Metallurgical_furnace

    These blasts make the fuel burn hotter and drive chemical reactions. Furnaces of this type include: The blast furnace, used to produce pig iron from iron ore. These can be subdivided into: Cold blast furnaces; Hot blast furnaces; The bloomery, a precursor to the blast furnace that produces sponge iron from ore

  7. Basic oxygen steelmaking - Wikipedia

    en.wikipedia.org/wiki/Basic_oxygen_steelmaking

    Exothermic heat is generated by the oxidation reactions during blowing. The basic oxygen steel-making process is as follows: Molten pig iron (sometimes referred to as "hot metal") from a blast furnace is poured into a large refractory-lined container called a ladle.

  8. Demolition of giant Redcar blast furnace changes skyline in ...

    www.aol.com/demolition-giant-redcar-blast...

    The blast furnace was first mothballed in 2010 but restarted two years later when SSI UK took over. It was shut down for a final time in 2015 when SSI entered liquidation – with the loss of ...

  9. Direct reduction - Wikipedia

    en.wikipedia.org/wiki/Direct_reduction

    Direct reduction is theoretically well-suited to the use of ores that are less compatible with blast furnaces (such as fine ores that clog furnaces), which are less expensive. It also requires less capital, making it a viable alternative to the two tried-and-tested methods of electric furnaces and blast furnaces. [20]