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 005 μm to about 1000 μm, about 01 ....
During the last year ,India exported cast iron powder worth USD 10,334,648 with total quantity of 16,463,298 Japan is the largest buyer of cast iron powder accounting for exports worth USD 8,444,378 followed by United States and United Kingdom which imported cast iron powder worth USD 1,291,057 and USD 171,918 respectively...
The oxidation of sponge iron products and its destructive effects on iron content as well as other properties have been considered by ferrous technologists for a long time In this investigation, a unique new low temperature method of preventing and/or retarding the oxidation of direct reduced iron ....
Patent US3663201 - Process for production of sponge iron Process for production of sponge iron by direct reduction of iron ore wherein iron ore admixed with a carbonaceous reducing agent is passed through a rotary kiln countercurrent to a gas stream, and wherein granular coking high volatile coal is injected co-current to said gas stream as a ....
In the process of the present invention the metallic charge which is supplied in the induction furnace comprises cast iron / pig iron, steel scrap and sponge iron, which contains iron oxide FeO Mill scale can also be used as a source of iron oxide FeO...
Sponge iron, at first, is guided through a dedusting Zone 7, which comprises a hood 10 connected to a dust exhaust ventilation 8 and covering the Sponge iron Strip 9...
Trade leads from DRI tunnel kiln for sponge iron Suppliers and DRI tunnel kiln for sponge iron buyers provided by weiku process making sponge iron rotary kiln animation - , Direct Reduced Iron and The first patent was in 1792 in United Kingdom presumably utilizing a rotary kiln but the its structure is just like sponge with a...
separating agent for sponge iron separating agent for sponge iron - , US Patent 4,389,040 Apparatus for separating a sponge iron, An apparatus for separating sponge iron products from the hot discharge material of a rotary furnace ....
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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....
Sponge iron plant products are most popular in Domestic Market, Mid East, and Southeast Asia You can ensure product safety by selecting from certified suppliers, including 82 with ISO9001, 16 with OHSAS18001, and 14 with ISO14001 certification...
The Patent Description Claims data below is from USPTO Patent Application 20170009309, Methods and systems for increasing the carbon content of sponge iron in a reduction furnace...
The sulpha sponge iron compound has Fe2 gt /Fe3 gt cores forming interstatially stabilized clusters The invention also includes a process for desulphurising natural gas by adsorbing sulphur containing contaminants in the novel sulpha sponge iron compound either ,...
Process for the production of pig iron Abstract A process for the production of pig iron from iron ore is disclosed The pig iron is firstly converted to sponge iron in a direct reduction shaft furnace 1 and then the sponge iron is converted to pig iron in a melt-down gasifier 2...
Company Profile , marble, ceramic, aluminum bauxite, manganese ore, iron ore, copper ore, phosphate rock, red iron oxide, , Our products are manufactured ,...
The invention relates to a process for producing sponge iron, and more especially to a process wherein lumps of iron oxide ores are reduced to metal in a shaft furnace by means of hot reducing gases in the absence of substantial proportions of solid carbon and at temperatures below the melting points of the ore and of the metallic product...
patent of sponge iron Read More gt >USAMethod of producing sponge ironGoogle Patents Prior art keywords iron material temperature carbohydrate oxide Prior art dateLegal status The legal status is an assumption and is not a legal conclusion Read More gt >Rotary Kiln Process of Making Sponge Iron C...
Patent US3556772 Method of sponge iron briquetting United States Patent 3556772 METHOD OF SPONGE IRON sponge iron after the surplus reducing agent separating and cooling the sponge iron get more info US2855290A Method of reducing iron oxide to sponge iron...
The iron sponge process is one of the oldest known methods for the removal of hydrogen sulfide and sulfur compounds from gas streams The technique originated in Europe over 100 years ago and is still widely used today for gas sweetening...
The iron occur in Fe-mineral ores contains impurities of Phosphorus, sulphur and high alkali as well as impregnations of waste rock To produce a metallurgy treatable concentrate the ore has to be grind for mineral liberation, enriched for concentration and dewatered for transportation...
The invention relates to a process for producing sponge iron, and more especially to a process wherein lumps of iron oxide ores are reduced to metal in a shaft furnace by means of hot reducing gases i...
Process for producing Iron carbide wherein, in a first stage, Iron ore is reduced to sponge iron using a reducing gas containing at least 90 hydrogen, on a nitrogen-free basis, to produce a sponge iron having a carbon content of less than 1 wt then in a second stage the sponge iron is fluidized ....
Jun 14, 1983 0183 32 Sponge iron pellets are protected against re-oxidation by pre-wetting them with water or steam, coating them with a pulverulent passivating agent which is a mixture of iron oxide particles and hydraulic cement particles, then drying the treated pellets...
As pointed out in Mader et al Patent 3,136,624, sponge iron produced by the direct gaseous reduction of iron ore tends to have an undesirably low carbon content In most cases the sponge iron produced is used to make Steel, and if the carbon content of the Sponge iron is too low, car...
Sep 03, 2016 0183 32 Patent Technology Sponge Iron Rotary Kiln Price Quotation More Support Roller Rotary Kiln About 46 of these are cement making machinery, 10 are mining machinery parts, and 5 are other mining machin Support roller dry process cement rotary kiln in preferential price Patent Technology Sponge Iron Rotary Kiln Price...
SBM Mineral Processing Dept features Can Sintered Iron Be Used For Production Of Sponge Iron for sale from mining operations across India, Australia, Indonesia , sponge copper powder production method - beltconveyers , Patent US5902373 - Sponge-iron powder - Google Patents...
Direct reduced iron DRI is technically defined as iron ore which has been reduced to metal without melting it Hot briquetted iron HBI is a densified form of DRI to facilitate its handling and transport...
tunnel kiln sponge iron new technology As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, aggregate, and different kinds of minerals...
Patent USAir jig for separation of minerals , An improved air jig apparatus and method is disclosed in which a dry magnetic separator is used to separate paramagnetic and ferromagnetic minerals from the dust component of coal cleaned with the air jig...
The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron...