| Patents for C21B 11 - Making pig-iron other than in blast furnaces (2,381) |
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| 10/24/2012 | CN102140575B Novel metallurgy and casting integration method |
| 10/24/2012 | CN102021261B Method for preparing iron ingots and co-producing cadmium sulfate and copper sulfate from mixed iron slag through arc method |
| 10/23/2012 | CA2710613C Reducing furnace and apparatus for manufacturing molten iron comprising the same |
| 10/17/2012 | CN102732661A Method and equipment for division-type reduction of metallurgy |
| 10/10/2012 | CN102162017B Method for comprehensively utilizing paigeite by rotary hearth furnace iron bead process |
| 10/10/2012 | CN101432448B Direct smelting plant |
| 10/09/2012 | CA2663831C Method and apparatus for manufacturing granular metallic iron |
| 10/03/2012 | CN102703684A Method for producing low nickel matte through vulcanization of calcined sand |
| 09/27/2012 | WO2012126055A1 Direct smelting process for high sulphur feed |
| 09/27/2012 | DE102009038052B4 Verhüttungsverfahren durch Einsatz eines vorreduzierten Ilmeniterzstromes und/oder Hämatiterzstromes Smelting by using a pre-reduced Ilmeniterzstromes and / or Hämatiterzstromes |
| 09/26/2012 | CN102690944A Method for comprehensively recovering vanadium, titanium and iron from high-vanadium vanadium titano-magnetite |
| 09/26/2012 | CN102690919A Flash smelting method of iron |
| 09/19/2012 | CN102676722A Smelting method for melting gasifier |
| 09/19/2012 | CN102672117A Process method for duplex production of HT200 and HT250 castings by blast furnace and intermediate-frequency furnace |
| 09/19/2012 | CN101792859B Method for extracting multiple metals |
| 09/13/2012 | WO2012091407A3 Apparatus for manufacturing molten steel, and method for manufacturing molten steel using same |
| 09/11/2012 | US8262766 Method for reducing chromium containing raw material |
| 09/05/2012 | CN102656283A Apparatus for manufacturing molten iron |
| 09/05/2012 | CN102653822A Iron-containing solid byproduct of iron making by smelting reduction and manufacturing method thereof |
| 09/05/2012 | CN102653803A Short-flow method for reducing iron through two-step melting |
| 09/05/2012 | CN101871030B Production process of byproduct iron of thermal power plant and reduction kiln thereof |
| 09/05/2012 | CN101528949B Process for production of granular metallic iron and equipment for the production |
| 08/22/2012 | CN102051426B Method and device for smelting iron by reduction |
| 08/22/2012 | CN101643805B New method for producing high-quality high titanium slag |
| 08/15/2012 | EP2487266A1 Molten metal producing device |
| 08/15/2012 | CN102634620A Method for improving utilization rate of carbon-hydrogen reducing agent in iron-bath smelting reduction |
| 08/15/2012 | CN102634619A Circular iron making and power generation technology |
| 08/08/2012 | CN102628091A Technology for producing molten iron by three-step method |
| 08/08/2012 | CN101688257B Method and system for the supply of hot direct reduced iron for multiple uses |
| 08/07/2012 | CA2563899C Metallurgical processing installation |
| 08/02/2012 | US20120192678 Methods of Using Tires and Scrap Rubber in the Manufacture and Melting of Steel and Other Metals |
| 08/01/2012 | CN202360806U Iron making coal injection transfer automatic switching anti-blocking valve |
| 08/01/2012 | CN102618684A Continuous melting reduction iron-making device |
| 08/01/2012 | CN102618683A Method for controlling temperature of vault of fusion gasification furnace |
| 07/31/2012 | CA2630236C Method for manufacturing metallic iron |
| 07/18/2012 | CN102586529A Rotary hearth furnace iron-making method utilizing biomass carbon-containing pellet to serve as raw material |
| 07/18/2012 | CN102586528A Novel natural gas smelting reduction ironmaking process |
| 07/18/2012 | CN102586527A Novel hydrogen-carbon smelting reduction ironmaking process |
| 07/18/2012 | CN102127609B Short-process ferroalloy smelting device |
| 07/18/2012 | CN101792867B Combined flow treatment method of tin rough concentrate |
| 07/18/2012 | CN101713008B Method and device for extracting iron from melted reduced nickel slag |
| 07/18/2012 | CN101688261B Improvements in the production of ferro-alloys |
| 07/11/2012 | CN202316171U 一种喷油油冷氧枪 One kind of fuel injection oil-cooled oxygen lance |
| 07/11/2012 | CN102559977A Novel production method of granular iron |
| 07/11/2012 | CN101747069B High-alumina product for steel-smelting electric furnace top |
| 07/05/2012 | WO2012091407A2 Apparatus for manufacturing molten steel, and method for manufacturing molten steel using same |
| 07/04/2012 | CN102549172A Molten metal producing device |
| 07/04/2012 | CN102534085A Quantum melting type iron-ore furnace |
| 07/04/2012 | CN102534084A Calcium iron alloy and production and preparation method thereof |
| 07/04/2012 | CN101796199B Process for producing molten iron |
| 07/04/2012 | CN101743330B Process for producing molten iron |
| 07/04/2012 | CN101305103B Method for the operation of a shaft furnace, and shaft furnace suitable for said method |
| 07/03/2012 | CA2521689C Direct smelting plant and process |
| 06/28/2012 | WO2012087829A2 Use of bimodal carbon distribution in compacts for producing metallic iron nodules |
| 06/28/2012 | CA2831461A1 Use of bimodal carbon distribution in compacts for producing metallic iron nodules |
| 06/20/2012 | CN202279831U High blast temperature swirl injection perturbation smelting reduction and pre-reduction integrated device |
| 06/20/2012 | CN101886154B Method for preparing low-copper molten iron by mixed melting reduction of copper slag and iron ore |
| 06/20/2012 | CN101857910B Method for melting, reducing and smelting high-titanium iron ore by oxygen-enriched top blowing |
| 06/13/2012 | CN102492844A Submerged arc furnace and smelting method for melting paragenetic mineral to extract iron, manganese, lead, tin, silver, zinc and indium |
| 06/13/2012 | CN102492843A Production method through combined treatment of laterite by direct current electric furnace |
| 06/13/2012 | CN102492831A Recovery method for ferruginous accompaniments containing chromium and nickel |
| 06/13/2012 | CN101798610B Method and device using coal to directly reduce iron |
| 06/06/2012 | CN101805812B Method for refining metal and preparing building material from mineral |
| 05/31/2012 | WO2012071323A1 Devices for tailoring materials |
| 05/31/2012 | CA2817391A1 Devices for tailoring materials |
| 05/30/2012 | CN102477468A 电炉铁水过渡槽 Furnace hot metal transition groove |
| 05/30/2012 | CN102108427B Segmental fluidized bed and using method thereof |
| 05/30/2012 | CN101914648B Method for producing low-phosphorus molten iron by utilizing oxygen-enriched top blown to carry out melting reduction on high-phosphorus iron ore |
| 05/23/2012 | CN101705324B Process for smelting ferro-nickel by using nickel oxide minerals and smelting device |
| 05/16/2012 | CN102453784A Slag capable of raising heat transfer efficiency used for melting reduction process |
| 05/16/2012 | CN102451904A Casting method of body casting of centrifugal air compressor |
| 05/15/2012 | US8177880 System and method of producing metallic iron |
| 05/10/2012 | WO2012060838A1 Reformer tube apparatus having variable wall thickness and associated method of manufacture |
| 05/10/2012 | CA2810832A1 Reformer tube apparatus having variable wall thickness and associated method of manufacture |
| 05/09/2012 | CN101935728B Method for producing upgraded coal for use in metallurgy and method for producing reduced metal and slag containing oxidized nonferrous metal using the coal |
| 05/09/2012 | CN101935727B Method for producing improved coal for use in metallurgy, and method for producing reduced metal and slag containing oxidized nonferrous metal |
| 05/03/2012 | US20120103136 Apparatus and method for producing reduced iron from alkali-containing ironmaking dust serving as material |
| 05/02/2012 | CN202208736U System for extracting iron particles and zinc powder from steel plant dust |
| 05/02/2012 | CN101967530B Method for reducing iron by smelting reduction in electrometallurgy |
| 04/26/2012 | WO2012053291A1 Apparatus for producing molten metallic iron |
| 04/26/2012 | DE102010049233A1 Producing pig iron in a blast furnace reduction process, using a blast furnace and a hot blast stove, comprises heating air supplied to the blast furnace, which is required for reduction |
| 04/25/2012 | CN102424873A 一种太阳能还原炼铁的方法和装置 A method and apparatus of the solar ironmaking |
| 04/18/2012 | CN101463403B 红土镍矿电炉冶炼镍铁工艺 Nickel laterite nickel-iron smelting furnace process |
| 04/17/2012 | US8157888 Process for producing molten iron |
| 04/17/2012 | US8156709 Direct smelting plant |
| 04/11/2012 | CN102409125A 一种向熔炼铁水的电炉中加入增碳剂的方法 One kind of furnace to smelt iron added recarburiser method |
| 04/11/2012 | CN102409124A 一种熔融还原连续炼铁装置 A smelting reduction ironmaking means continuous |
| 04/10/2012 | US8152894 Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals |
| 04/04/2012 | CN202181312U 稳定型炼铁还原竖炉围管耐材结构 Stable iron reduction shaft furnace refractory structure around the tube |
| 04/03/2012 | CA2466398C Metallurgical reactor for the production of cast iron |
| 03/28/2012 | CN101331239B Process for producing metallic iron |
| 03/22/2012 | WO2012034184A1 Direct smelting process |
| 03/22/2012 | CA2811123A1 Direct smelting process |
| 03/21/2012 | CN102382919A Method of smelting vanadium titanomagnetite by using oxygen-enriched top-blown smelting reduction |
| 03/21/2012 | CN102380464A Oil-spraying oil-cooling oxygen gun |
| 03/21/2012 | CN101910420B Reducing furnace and apparatus for manufacturing molten iron comprising the same |
| 03/21/2012 | CN101701312B Method for smelting stainless steel mother liquid by using chromium mineral powder and laterite as raw materials |
| 03/14/2012 | EP2004865B1 A forehearth |
| 03/08/2012 | WO2012029947A1 Rotary hearth furnace exhaust gas duct apparatus and method for operating same |
| 03/08/2012 | WO2012029862A1 System for feeding reduced iron material |