Aug 13, 2018· Sponge Patents (Class 15/244.4) High aspect ratio layered scrub. Patent number: 10925456. Abstract: A layered scrub having an aspect ratio of between 0.75 and 1.25 is presented, comprising: a) a scrubber layer; b) a sponge layer; optionally c) a rigid boundary layer, which optionally is directly bound to layer c) and/or layer b); and optionally ...
Oct 30, 2013· A modified sponge iron was prepared by chemical replacement copper plating using hydroxyl ethidene phosphonic acid (HEDP) as Cu(II) complexing agent in this paper. The morphology, chemical composition and surface area were characterized by scanning electron microscopy, energy dispersive spectrometer and Brunauer–Emmett–Teller area test, respectively.
A method for manufacturing sponge iron includes heating iron oxide together with a solid reducing agent to reduce the iron oxide into sponge iron, wherein the iron oxide includes a mixture of powdered hematite and powdered iron ore or a mixture of powdered hematite and powdered mill scale, the powdered hematite has a specific surface area of 2.0 m 2 /g or more, and the content of the powdered ...
Sponge Iron is an intermediate product in Iron and Steel production through Direct Reduction process of iron ore. In this experiment, sponge iron was made from local iron ore as feed for big Industry and small one that use cupola furnace. The method used was laboratory experiment to find optimum process condition on sponge Iron briquette ...
Sponge iron produced by direct reduction is melted in an electric arc furnace, in which a pool of liquid metal is maintained. To ensure that liquid carbon-containing iron for forming the pool is available in adequate quantities and that the process can be carried out with the highest possible economy, the sponge iron is reacted in an electric arc furnace on a bath of liquid carbon-containing ...
Direct reduction iron or sponge iron is an old method for producing hydrogen (Milne et al., 2006; Peña et al., 2010; Biljetina and Tarman, 1981) that was replaced by more efficient and economic processes.Recently, the interest in sponge iron as a hydrogen production process has grown again, although the technology still has some major technical and economic challenges to overcome (Milne …
Between 2000 & 2010, at least 50 patents have been applied for iron ore briquetting all over the world. The briquetting press can be used for iron ore, bauxite, dolomite, limestone, manganese, chromium, sponge ... Sponge iron briquettes can be used in place of sponge iron nes for melting. With high density, they penetrate
Sep 16, 1999· Ma Chhinamastika Sponge Iron Limited incorporated with MCA on 16 September 1999.The Ma Chhinamastika Sponge Iron Limited is listed in the class of publicltd company and classified as Non Govt Company.This company is registered at Registrar of Companies(ROC), Jharkhand with an Authorized Share Capital of Rs.8 CR and its paid up capital is 7 CR.. Ma Chhinamastika Sponge Iron …
A steel manufacturing process can include forming an iron oxide layer on a hot band during hot rolling; reducing the iron oxide layer on the hot band to form a sponge iron layer that includes pores; the sponge-iron layer having a thickness in a range of about 0.05 μm to about 1000 μm, about 0.1 μm to about 100 μm, or about 5 μm to about 25 μm; and depositing an alloying element into the ...
Part 3A: Iron Sponge Basics November 2017 One of the oldest technologies for the removal of hydrogen sulfide (H 2 S) from gas is the use of "Iron Sponge". A chemical-physical process, originally developed to remove H 2 S from natural and coal gas streams, iron sponge has been in use for over 140 years and more recently to remove H 2
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A method for manufacturing sponge iron includes heating iron oxide together with a solid reducing agent to reduce the iron oxide into sponge iron, wherein the iron oxide includes a mixture of powdered hematite and powdered iron ore or a mixture of powdered hematite and powdered mill scale, the powdered hematite has a specific surface area of 2.0 m2/g or more, and the content of the powdered ...
For protecting iron sponge particles against reoxidation and/or corrosion a coating comprising CaO as well as iron or iron oxides as adhesion promotor is applied onto the iron sponge particles. Water is subsequently sprayed onto this coating whereupon a second coating of a mixture of dust-shaped CaO and a carbon carrier is applied. This second coating is subsequently humidified with a smaller ...
The Sponge Iron is majorly used in the making of steel, it is a metallic product which is produced through direct reduction of Iron Ore in the strong state. Sponge iron manufacture is highly sensitive to raw material characteristics. Therefore, the process used aims to drive off the oxygen contained in the various forms of iron ore - sized ore ...
Sep 10, 2013· To improve the performance of sponge iron deoxygenization, chemical replacement copper plating was originally employed to modify the sponge iron. The results of the experiments showed that the deoxygenization performance was promoted significantly and the optimum modifying conditions were as follows: CuSO4 (15 g/l), potassium pyrophosphate (40 g/l), citric acid (10 g/l), …
Jun 21, 2021· SSAB, LKAB and Vattenfall AB have now produced the world's first hydrogen-reduced sponge iron at a pilot scale. The technological breakthrough in the HYBRIT initiative captures around 90% of emissions in conjunction with steelmaking and is a decisive step on the road to fossil-free steel.
Mar 20, 2017· Later, during the experiments on the production of pig iron in the electric furnace at Domnarfvet, Sweden, 280 tons of crude non containing from 0.95 to 3.09 per cent, carbon were produced. This showed the possibility of producing pig steel in an electric shaft furnace. Later at Trollhattan, Sweden, these results were confirmed in a larger furnace.
Jun 25, 2020· Product Description O 2 Loading Capacity Pressure Drop Data Sheet SDS; BAM TM Iron Sponge High capacity H 2 S removal (up to 10,000 ppm) and some light mercaptans and light organic sulfurs, down to negligible levels.: A biologically enhanced iron sponge specifically designed for cost-effective and reliable H 2 S removal from LFG and Biogas resulting from anaerobic digestion and …
Sep 01, 2018· The location of Sponge Iron Plant should be at least 500 m away from National Highway and State Highway. The radial distance between two Sponge Iron Plants should be 5 km for plants having capacity 1000 TPD or more. Sponge Iron Plants can be established in designated industrial areas/Estates as notified by State Government.
ORISSA SPONGE IRON AND STEEL LTD. OSIL P & E is capable of providing the following services. · Preliminary engineering services including testing of raw materials for : - Coal based DRI Plant of 350 & 500 TPD. - Power generation facility from waste heat of DRI off gas. - Steel making through IF / EAF including secondary metallurgy.
Midrex is an innovative ironmaking process, developed for the production of direct-reduced iron (DRI) from iron ores and primarily natural gas. Midrex is a gas-based shaft furnace process that converts iron oxides – in the form of pellets or lump ore – into direct reduced iron (DRI). The Midrex technology is highly adaptive to our customers ...
Feb 20, 2020· Coal India exploring avenues for import substitution of coal. To find avenues for expanding its supplies CIL is focusing on non-power sector consumers from sectors including sponge iron, cement, captive power plants, fertilizes and steel, persuading them to replace their imported coal with domestic coal.
A method for continuous passivation of hot sponge iron material, by feeding hot sponge iron material to a compactor, compacting the material to a high density elongated strip-like mass, cutting the mass longitudinally into a plurality of strips while simultaneously compacting the freshly cut longitudinal edges, cutting the strips transversely of their longitudinal dimensions while ...
The residence time in the lowermost fluidized bed reactor 4 is 33 min for the low-carbon sponge iron, and 37.5 min for the sponge iron of elevated carbon content. The CO/CO 2 ratio is 2 in the first instance and 2.4 in the second instance. The natural gas employed in producing the reducing gas is of the chemical composition indicated in the ...
Sponge Iron. Sponge iron is a product of the solid state reduction of Iron Ore/ pellets which helps in removal of oxygen from the iron ore and converts into metallic form. The world is increasingly using sponge iron as an alternative route to manufacturing steel and it has a sizeable contribution in Indian Steel Production.
Syngas, or synthesis gas, is a fuel gas mixture consisting primarily of hydrogen, carbon monoxide, and very often some carbon dioxide.The name comes from its use as intermediates in creating synthetic natural gas (SNG) and for producing ammonia or methanol.Syngas is usually a product of coal gasification and the main application is electricity generation.
Jun 22, 2021· The HYBRIT pilot plant in Luleå, Sweden, has completed test production of sponge iron and demonstrates that it is possible to use fossil-free hydrogen gas to reduce iron ore instead of using coal and coke to remove the oxygen. Around 100 metric tons of sponge iron have been produced so far. This is the first time ever that hydrogen made with fossil-free electricity has been used in the direct ...
(57) Abstract: The essence of the invention: method of producing molten pig iron or molten semi-finished steel and sponge iron from the boot of materials consisting of iron ore, preferably lumpy and/or granulated iron ore, and, if required, fluxes, direct recovery boot materials in sponge iron is carried out in the reduction zone with a porous layer.