Patents
Sitemap › C21 - Metallurgy of iron › C21B - Manufacture of iron or steel › C21B 13 - Making spongy iron or liquid steel, by direct processes
Patents for C21B 13 - Making spongy iron or liquid steel, by direct processes (6,991)
07/2010
07/21/2010CN201532107U Partition structure in rotary hearth furnace
07/21/2010CN201532106U Hearth supporting device of rotary hearth furnace
07/21/2010CN201532105U Hearth transmission device of rotary hearth furnace
07/21/2010CN101781694A Dismounting and transporting trolley
07/15/2010WO2010079050A1 Method and device for producing pig iron or fluid steel pre-products
07/14/2010CN101775456A Device and method for recycling iron from steel slag
07/14/2010CN101775455A Iron reduction device
07/08/2010WO2010077179A2 Method for plasmochemical processing of substances and device for implementing same
07/07/2010EP2204459A1 Process for producing pre-reduced iron
07/07/2010CN201520775U Direct reduction process pot furnace device
07/07/2010CN101772582A Lance for injecting solid material into a vessel
07/07/2010CN101768651A Hydrogen metallurgy method
07/01/2010WO2010072043A1 Smelting vessel, steel making plant and steel production method
07/01/2010US20100162852 Method and apparatus for the direct reduction of iron ores utilizing syngas
06/2010
06/30/2010EP2202325A1 Method of operating vertical furnace
06/30/2010EP2202324A1 Vertical furnace and method of operating the same
06/30/2010EP2202323A1 Vertical furnace
06/30/2010CN101759149A Method for producing reducing gas for shaft furnace in steel plant
06/30/2010CN101413041B Coal-based direct reduction iron rotary hearth furnace and combustion method thereof
06/30/2010CN101386896B Ore coal, melting ironmaking method after direct reduction-flotation-agglomeration
06/30/2010CN101358258B Coal reducing gas direct reduction metallurgical process in gas-based shaft kiln and system
06/24/2010WO2010069711A1 Method for producing liquid metals
06/24/2010US20100154592 Methods of Using Tires and Scrap Rubber in the Manufacture and Melting of Steel and Other Metals
06/23/2010EP2199365A1 Process for producing a recarburizer carbonaceous product
06/23/2010CN201512549U Device for melting sponge iron by heating, separating iron slag and refining molten steel
06/23/2010CN101755056A Method and apparatus for the direct reduction of iron ores utilizing syngas
06/23/2010CN101748234A Continuous steel-making method of short process with suspension pre-reduction
06/22/2010CA2251811C Metal containing compound reduction and melting process
06/17/2010US20100148410 Linear hearth furnace system and methods regarding same
06/17/2010DE112008001693T5 Lanze zum Einblasen von festem Material in ein Gefäss Lance for injecting solid material into a vessel
06/16/2010CN101736161A Method for comprehensively recovering tin smelting secondary raw materials by melting in DC furnace
06/16/2010CN101736113A Fine reduction furnace for smelting reduction iron making
06/16/2010CN101736112A Method for fusing and reducing iron from copper residue by blowing inert gas
06/16/2010CN101429582B Method for producing ferro-silicon alloy and calcium aluminate material with red mud and aluminum ash
06/16/2010CN101080503B Gas spray gun
06/09/2010EP2193212A2 Tuyere for manufacturing molten iron and method for injecting gas using the same
06/09/2010EP2193184A1 Method for purifying the crude gas from a solid matter gasification
06/09/2010EP1469086B1 Process for producing molten iron
06/09/2010CN101724727A Short-flow rotary hearth furnace continuous steelmaking method comprehensively utilizing resources
06/09/2010CN101724726A Method and device for ironmaking by smelting
06/09/2010CN101723812A Method for preparing dimethyl ether by utilizing tail gas discharged by melting reduction ironmaking
06/09/2010CN101194029B Hot metal supply apparatus
06/08/2010CA2492243C Metallurgical vessel and method of iron making by means of direct reduction
06/03/2010WO2010060770A1 Nozzle for injecting gas containing oxygen into a pig iron device having an injector insertion pipe
06/03/2010CA2744880A1 Nozzle for injecting gas containing oxygen into a pig iron device having an injector insertion pipe
06/02/2010CN101429581B Method for producing ferro-silicon alloy and magnesium aluminate spinel with aluminum ash and white olivine
06/01/2010US7727304 Smelting process for the production of iron
05/2010
05/26/2010EP2189547A1 Process for producing reduced iron pellets, and process for producing pig iron
05/26/2010EP2189546A1 Process for manufacturing molded products of direct-reduced iron and process for manufacturing pig iron
05/26/2010CN1738915B Method for producing metallic iron
05/26/2010CN101713008A Method and device for extracting iron from melted reduced nickel slag
05/26/2010CN101713007A Technique method for directly producing sponge iron by carrying out deep reduction on extracted vanadium tailings
05/26/2010CN101300364B Rotary hearth furnace and method of operating the same
05/25/2010CA2521321C Method and apparatus for producing reduced iron
05/19/2010CN201476600U Tubular air preheater by utilizing waste heat of high-temperature flue gas from dezincification process in metallurgical rotary hearth furnace
05/19/2010CN201476599U Tube-type air preheater using dezincing high-temperature waste heat of metallurgical rotary hearth furnace
05/19/2010CN201476572U Device for loading material for producing sponge iron
05/19/2010CN201470368U Fine particle return control device of high temperature fluidized bed
05/19/2010CN101104873B Method for fusing and reducing iron by employing iron ore hot pressing carbon-containing agglomerate
05/18/2010CA2248273C Method and apparatus for making metallic iron
05/12/2010CN201461348U Device for monitoring running state of air compressor system of COREX dreg vertical mill
05/12/2010CN201458657U Improved structure of discharging device of COREX smelting waste slag powder-hoisting machine
05/12/2010CN101705325A Method for producing sponge iron and recycling nonferrous metals simultaneously by utilizing metallurgy waste materials
05/11/2010US7713329 Apparatus for manufacturing molten irons to improve operation of fluidized bed type reduction apparatus and manufacturing method using the same
05/11/2010CA2320654C A direct smelting process
05/06/2010US20100107818 System and method for producing metallic iron nodules
05/05/2010CN1842604B Self-reducing, cold-bonded pellets and manufacturing method thereof
05/05/2010CN101701275A Method for preparing nickel iron by using rotary kiln for directly reducing nickel silicate ores
05/05/2010CN101701274A hydrogen metallurgy
04/2010
04/29/2010WO2010046211A1 Method and device for operating a smelting reduction process
04/29/2010CA2741607A1 Method and apparatus for operating a melt reduction process
04/28/2010CN201443974U Continuous steelmaking furnace sludgeless steel-tapping hole
04/28/2010CN201443953U Cannular device of shaft furnace
04/28/2010CN1576379B Effective utilizing method for carbon resource
04/28/2010CN1516744B Method for producing granular metal
04/27/2010CA2448237C Method for producing metallic iron
04/27/2010CA2301689C Method and apparatus for direct reduction of a material containing iron oxide in a particulate form
04/21/2010EP2176614A1 Process and plant for reducing solids containing iron oxide
04/21/2010CN1896286B Method for producing direct iron-reduction by iron-ore briquet self-production reproduced gas
04/21/2010CN101696846A Roll loosening device
04/21/2010CN101696460A Process and device for dual continuous steel making with iron-containing material rotary hearth furnace
04/20/2010US7700035 Direct smelting plant and process
04/15/2010WO2010042023A1 Process for production of direct reduced iron
04/15/2010WO2010040442A1 Device for smoothing the surface of a sinter mixture
04/15/2010CA2739577A1 Process for production of direct reduced iron
04/14/2010EP2173915A1 Process and apparatus for producing iron sponge
04/14/2010CN101693933A Ironmaking technical furnace top charging technology
04/13/2010CA2497614C A slag conditioner composition, process for manufacture and method of use in steel production
04/13/2010CA2323272C Stable idle procedure
04/07/2010EP2172726A1 Apparatus and method for treating waste gas for rotary hearth furnace-type reducing furnace
04/07/2010CN1926248B Direct smelting plant and process
04/07/2010CN101691621A Method of producing sponge iron from carbon dedusting ash and iron scales
04/06/2010US7691200 Magnesium oxide single crystal and method for producing the same
04/06/2010US7691178 Production of iron
04/01/2010WO2010035779A1 Method of coal gasification and direct ironmaking and system therefor
04/01/2010CA2738288A1 Method of coal gasification and direct ironmaking and system therefor
03/2010
03/31/2010EP2169081A1 Reduction treatment apparatus and method of reduction treatment
03/31/2010CN201433222Y Internally-externally-heating sponge iron reduction device
03/31/2010CN101688759A Apparatus and method for treating waste gas for rotary hearth furnace-type reducing furnace
03/31/2010CN101688757A Process and plant for reducing solids containing iron oxide
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