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  2. Direct reduced iron - Wikipedia

    en.wikipedia.org/wiki/Direct_reduced_iron

    Direct reduction refers to solid-state processes which reduce iron oxides to metallic iron at temperatures below the melting point of iron. Reduced iron derives its name from these processes, one example being heating iron ore in a furnace at a high temperature of 800 to 1,200 °C (1,470 to 2,190 °F) in the presence of the reducing gas syngas ...

  3. Direct reduction - Wikipedia

    en.wikipedia.org/wiki/Direct_reduction

    These processes involve high-temperature blending of iron ore and coal powder, with a little limestone to reduce the acidity of the ore. Processes such as Carl Wilhelm Siemens', [48] based on the use of a short drum, [49] first appeared at the end of the 19th century. The tool used then evolved into a long tubular rotary kiln, inspired by those ...

  4. HIsarna ironmaking process - Wikipedia

    en.wikipedia.org/wiki/HIsarna_ironmaking_process

    The HIsarna ironmaking process is a direct reduced iron process for iron making in which iron ore is processed almost directly into liquid iron ().The process combines two process units, the Cyclone Converter Furnace (CCF) for ore melting and pre-reduction and a Smelting Reduction Vessel (SRV) where the final reduction stage to liquid iron takes place.

  5. Iron overload - Wikipedia

    en.wikipedia.org/wiki/Iron_overload

    Iron overload (also known as haemochromatosis or hemochromatosis) is the abnormal and increased accumulation of total iron in the body, leading to organ damage. [1] The primary mechanism of organ damage is oxidative stress, as elevated intracellular iron levels increase free radical formation via the Fenton reaction.

  6. Reducing atmosphere - Wikipedia

    en.wikipedia.org/wiki/Reducing_atmosphere

    The principal mission of an iron foundry is the conversion of iron oxides (purified iron ores) to iron metal. This reduction is usually effected using a reducing atmosphere consisting of some mixture of natural gas , hydrogen (H 2 ), and carbon monoxide .

  7. Antioxidant-rich diet may reduce risk of iron buildup ... - AOL

    www.aol.com/antioxidant-rich-diet-may-reduce...

    Scientists have found that diet may help reduce iron accumulation in the brain and lower the risk of cognitive decline. Trinette Reed/ Stocksy Iron is an important mineral for the body.

  8. Iron oxide cycle - Wikipedia

    en.wikipedia.org/wiki/Iron_oxide_cycle

    Simplified diagram of the iron oxide cycle. For chemical reactions, the iron oxide cycle (Fe 3 O 4 /FeO) is the original two-step thermochemical cycle proposed for use for hydrogen production. [1] It is based on the reduction and subsequent oxidation of iron ions, particularly the reduction and oxidation between Fe 3+ and Fe 2+.

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