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  2. Basic oxygen steelmaking - Wikipedia

    en.wikipedia.org/wiki/Basic_oxygen_steelmaking

    U.S. Steel and Bethlehem Steel introduced the oxygen process in 1964. [3] By 1970, half of the world's and 80% of Japan's steel output was produced in oxygen converters. [3] In the last quarter of the 20th century, use of basic oxygen converters for steel production was gradually, partially replaced by the electric arc furnace using scrap steel ...

  3. Industrial furnace - Wikipedia

    en.wikipedia.org/wiki/Industrial_furnace

    An industrial furnace, also known as a direct heater or a direct fired heater, is a device used to provide heat for an industrial process, typically higher than 400 degrees Celsius. [1] They are used to provide heat for a process or can serve as reactor which provides heats of reaction. Furnace designs vary as to its function, heating duty ...

  4. Steelmaking - Wikipedia

    en.wikipedia.org/wiki/Steelmaking

    Steel mill with two arc furnaces. Steelmaking is the process of producing steel from iron ore and/or scrap. Steel has been made for millennia, and was commercialized on a massive scale in the 1850s and 1860s, using the Bessemer and Siemens-Martin processes. Two major commercial processes are used.

  5. Electric arc furnace - Wikipedia

    en.wikipedia.org/wiki/Electric_arc_furnace

    The low capital cost for a mini-mill—around US$140–200 per ton of annual installed capacity, compared with US$1,000 per ton of annual installed capacity for an integrated steel mill—allowed mills to be quickly established in war-ravaged Europe, and also allowed them to successfully compete with the big United States steelmakers, such as ...

  6. Direct reduced iron - Wikipedia

    en.wikipedia.org/wiki/Direct_reduced_iron

    Direct reduction processes can be divided roughly into two categories: gas-based and coal-based. In both cases, the objective of the process is to remove the oxygen contained in various forms of iron ore (sized ore, concentrates, pellets, mill scale, furnace dust, etc.) in order to convert the ore to metallic iron, without melting it (below 1,200 °C (2,190 °F)).

  7. Flow chemistry - Wikipedia

    en.wikipedia.org/wiki/Flow_chemistry

    Continuous flow reactors allow good control over reaction conditions including heat transfer, time, and mixing. The residence time of the reagents in the reactor (i.e. the amount of time that the reaction is heated or cooled) is calculated from the volume of the reactor and the flow rate through it:

  8. Continuous reactor - Wikipedia

    en.wikipedia.org/wiki/Continuous_reactor

    Continuous reactors (alternatively referred to as flow reactors) carry material as a flowing stream. Reactants are continuously fed into the reactor and emerge as continuous stream of product. Continuous reactors are used for a wide variety of chemical and biological processes within the food, chemical and pharmaceutical industries. A survey of ...

  9. Steel mill - Wikipedia

    en.wikipedia.org/wiki/Steel_mill

    Integrated steel mill in the Netherlands.The two large towers are blast furnaces.. A steel mill or steelworks is an industrial plant for the manufacture of steel.It may be an integrated steel works carrying out all steps of steelmaking from smelting iron ore to rolled product, but may also be a plant where steel semi-finished casting products are made from molten pig iron or from scrap.

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