·The sponge iron reaction process is a cyclic process for water splitting whereby a syngas is consumed The syngas reacts with iron oxide magnetite Fe 3 O 4 to produce a reduced form of iron oxide wuestite or iron The reduced iron oxide is re oxidised with steam to form magnetite and hydrogen This process is now combined with the
·Sponge iron powder The Höganäs process is a direct reduction method for production of sponge iron powder using magnetite ore Fe3O4 and carbon as raw materials The reduction process takes place in a gas fired tunnel kiln at around 1200°C for 60 hours producing a sponge iron cake that is crushed milled and
Directly reduced iron DRI or called sponge iron has been found an excellent feed in electric arc furnace EAF steelmaking which has low tramp element content and steady component as a substitute for scrap it is generally preferred in the production of high quality 3 Nearly million tons of DRI were produced in 2006 over the
·Sponge iron process for manned space exploration The Sponge Iron Process SIR is a well known technology for the production and purification of hydrogen It consists of a cyclic process in which a feed gas rich in carbon monoxide and hydrogen syngas is passed on an iron oxide magnetite Fe3O4 at high temperature
·metallic iron Fe and three types of iron oxides wustite FeO hematite α Fe 2 O 3 and magnetite Fe 3 O 4 It also contains traces of non ferrous metals alkaline compounds and oils from the rolling process A study is made of the reduction of mill scale to sponge iron using coke at different temperatures and times The reduced samples are
·In recent years studies based on the reduction roasting of low grade iron ore followed by the magnetic separation for the production of the desired grade of magnetite concentrate for making pellets is a hot topic [6] Different researchers have studied the reduction roasting process and reported that it requires above 600 °C temperature to convert the low
·Sponge Iron is a metallic product formed by the use of chemical reduction on iron ore which removes oxygen from the ore body The departing oxygen causes the development of micro pores to form making the ore body porous and resembling a honeycomb or spongy texture when viewed under magnification hence the name sponge iron
·The sponge iron produced by direct reduction was melted and solidified In the second stage Hematite ore in the form of pellets was reduced using solid carbon in a furnace heated up to 1 100°C for 60 and 120 minutes magnetite wustite iron vii molecular diffusion of gaseous products through the product layer to the particle
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