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Direct reduced iron (DRI), also called sponge iron, [1] is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) into iron by a reducing gas which contains elemental carbon (produced from natural gas or coal) and/or hydrogen. When hydrogen is used as the reducing gas no carbon dioxide is produced.
This formed the basis of the first commercial sponge iron plant of India. [6] in 1976, installations in service totalled less than 5 Mt; [3] in 1985, annual production was 11 Mt for an installed capacity of around 20 Mt, [nb 5] the difference being explained by fluctuations in energy costs; [7] in 1991, production reached 20 Mt. [3]
Steelmaking is the process of producing steel from iron ore and/or scrap. ... It reduced plant capital costs and smelting time, and increased labor productivity ...
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.
Electrotherm has built a mini steel plant of 0.70 million TPA capacity. The plant consists of sponge iron kilns, induction melting furnaces, rolling mills, and a 30MW captive power plant. The plant also utilises LRF technology allowing it to produce low sulphur, low phosphorus steel grades for forging applications.
The company manufactures and sells sponge iron, mild steel slabs, rails, mild steel, structural, hot rolled plates, iron ore pellets, and coils. [6] Jindal Steel and Power set up the world's first MXCOL plant at Angul, Odisha that uses the locally available and cheap high-ash coal and turns it into synthesis gas for steel making, reducing the ...
Lisco's operations are primarily supplied by imported iron ore pellets from Brazil, Canada, and Sweden for use as raw materials. [3] Natural gas is used to manufacture sponge iron and hot briquetted iron. Hot-briquetted iron (HBI) became a significant Libyan mineral export since the LISCO II plant began producing it in 1997. About 54% of Lisco ...
The company was founded in 1797 as a coal mine by Count Eric Ruuth. [2] It also made refractory and salt glazed ceramics. [3]In the early 20th century, Höganäs developed the Höganäs Method, considered the most effective method of producing sponge iron powder by reducing iron ore with coke, lime, and clay. [4]