| Patents for C22B 1 - Preliminary treatment of ores or scrap (10,434) |
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| 04/15/2009 | CN101410538A Method for recycling steelmaking dust |
| 04/15/2009 | CN101407860A Cold press composite pellet binder |
| 04/15/2009 | CN101407859A Use of carbonaceous composite pellet containing manganese in electric furnace smelting |
| 04/15/2009 | CN101407858A Preparation of carbonaceous composite pellet containing manganese |
| 04/15/2009 | CN100478477C Method for extracting nickel iron alloy from laterite ore |
| 04/15/2009 | CN100478461C Combined bottom rotating furnace-electric furnace process for treating red mud nickel ore to produce ferronickel |
| 04/15/2009 | CN100478454C Method of mfg. metal iron |
| 04/14/2009 | US7517509 Emulsifying an oil in an aqueous solution to form an oil-in-water emulsion; forming a saturated trona brine; adding the trona ore to the saturated brine to form a saturated trona suspension, trona ore including trona and gangue material; conditioning; separating |
| 04/09/2009 | DE102008013746A1 Making moldings for recycling, using wastes arising from iron or steel production, adds water, cement, sand and additives and consolidates in mold |
| 04/08/2009 | CN201217676Y Water-sealed device of ball circular cooler |
| 04/08/2009 | CN101403052A Novel process for solvent extraction decomposition of little cerium and rich lanthanum from fluorine-carbon-cerium rare earth mine |
| 04/08/2009 | CN101403041A Method for removing arsenic sulphur elements in golden ore concentrate hard to treat |
| 04/08/2009 | CN101403034A Novel reinforced fusing agent powder for ironmaking and sintering |
| 04/08/2009 | CN101403033A Method for producing breeze group |
| 04/08/2009 | CN100475985C Recovering process of valuable metal from crude bismuth |
| 04/08/2009 | CN100475984C Mechanical activating roasting method for metallurgical material and sodium carbonate |
| 04/07/2009 | US7513930 Reductive method for production of metallic elements such as chrome using a crucible with a perforated wall |
| 04/07/2009 | CA2525090C Aluminosilicate mixture for fabrication of fireproof, high-strength granules, fireproof high-strength spherical granules and the method of their manufacture |
| 04/01/2009 | CN101400810A Equipment and method for heating as in connection with sintering |
| 04/01/2009 | CN101397597A Method for producing spongy iron by direct reduction of dry coal powder gasification and hot coal gas fine ore fluidized bed |
| 04/01/2009 | CN100473452C Method and apparatus for the conveyance of fine-grained solids |
| 03/26/2009 | WO2009037943A1 Method for producing briquette with carbonaceous material incorporated therein by use of oil-containing iron-making plant dust |
| 03/26/2009 | WO2009037596A2 Method to improve recovery of gold from double refractory gold ores |
| 03/26/2009 | US20090078088 Blending a raw material of > 60% iron-containing dust and/or sludge with coarse grains; adding coke breeze fuel, kneading and granulating the blend using a vibration kneading granulator; coating with coke breeze using a rolling granulator; sintering the screened fraction having a grain size of > 1 mm |
| 03/25/2009 | EP2039788A1 Dephosphorization method in the process of smelting ni-cr pig iron from a nickel oxide ore |
| 03/25/2009 | CN101394704A Plasma spray gun device and method for treating returning ore by plasma |
| 03/25/2009 | CN101392333A Vanadium-nitrogen alloy preparation method and device |
| 03/25/2009 | CN101392332A Cleaning production technique for directly transforming rare earth sulfate bake ore to extract rare earth |
| 03/25/2009 | CN101392331A Smelting technique for processing nickel ore by rotary kiln |
| 03/25/2009 | CN101392330A Method for jointly producing ferronickel in tunnel furnace-blast furnace from lateritic nickel |
| 03/25/2009 | CN101392329A Nickel oxide ore dressing process |
| 03/25/2009 | CN101392322A Ferrosilicon powder sphere and production method thereof |
| 03/25/2009 | CN101392321A Method for treating nickel-containing laterite by microwave reducing roasting-hematite precipitation conversion method |
| 03/25/2009 | CN101392320A Method for treating nickel-containing laterite by microwave reducing roasting-goethite precipitation conversion method |
| 03/25/2009 | CN101392307A Environmental friendly energy-saving electric furnace direct steel-making method and device thereof |
| 03/19/2009 | WO2009035053A1 Process for producing reduced iron pellets, and process for producing pig iron |
| 03/19/2009 | WO2009034482A2 Process for recovering platinum group metals using reductants |
| 03/19/2009 | WO2009034418A1 Microwave treatment of bulk particulate material |
| 03/19/2009 | WO2009007911A3 Melt separation apparatus and method for assaying mineral ore samples using the same |
| 03/19/2009 | CA2707423A1 Method for producing reduced iron pellet and method for producing pig iron |
| 03/19/2009 | CA2699517A1 Process for recovering platinum group metals using reductants |
| 03/19/2009 | CA2697198A1 Microwave treatment of bulk particulate material |
| 03/18/2009 | EP2035590A2 Process for recycling of steel industry iron-bearing by-products by treating pellets in direct reduction furnaces |
| 03/18/2009 | EP2035589A1 Method for agglomeration |
| 03/18/2009 | CN101386921A Method for separating V-Ti-Fe concentrate fines |
| 03/18/2009 | CN101386908A Magnetization roasting technique system for refractory iron ore powder and roasting technology |
| 03/18/2009 | CN100469912C Process for preparing nickel ferroalloy by melting and reducing laterite nickel ore |
| 03/18/2009 | CN100469909C Molybdenum vanadium multimetal metallurgical material resolving method |
| 03/18/2009 | CN100469905C Method for preparing iron concentrate for making iron from phosphorus-containing oolitic hematite |
| 03/18/2009 | CN100469904C Method for producing sintered steel |
| 03/18/2009 | CN100469897C Method and apparatus for producing reduced iron |
| 03/17/2009 | US7504075 Ultrasonic reactor and process for ultrasonic treatment of materials |
| 03/12/2009 | WO2009031537A1 Process for manufacturing molded products of direct-reduced iron and process for manufacturing pig iron |
| 03/12/2009 | WO2009030809A1 Method and strand sintering equipment for continuous sintering and pre-reduction of pelletized mineral material |
| 03/12/2009 | WO2009030180A1 A circular cooling machine |
| 03/12/2009 | WO2009030064A1 A process for non-coke smelting iron and steel |
| 03/12/2009 | WO2008154367A3 Method of removing oil from a mixture of tool steel swarf granular material and oil |
| 03/12/2009 | CA2698234A1 Method of producing reduced iron cast, and method of producing pig iron |
| 03/11/2009 | CN201206946Y Combined ceramic distributing roller for rolling screening roller way |
| 03/11/2009 | CN201206945Y Combined idiosyncrasy rolling screening roller way |
| 03/11/2009 | CN101381809A Method for preparing sintering ore of vanadium-titanium magnetite ore |
| 03/11/2009 | CN100467630C Method and plant for the heat treatment of sulfidic ores using annular fluidized |
| 03/05/2009 | WO2009029753A1 Hardwood lignosulfonates for separating gangue materials from metallic sulfide ores |
| 03/05/2009 | CA2698250A1 Hardwood lignosulfonates for separating gangue materials from metallic sulfide ores |
| 03/04/2009 | CN101376927A Heat accumulation type rotary hearth furnace-wet separation-buried arc furnace nickel ore smelting method |
| 03/04/2009 | CN101376921A Sintering gas flue gas sulfuric dioxide decrement discharge technology |
| 03/04/2009 | CN100465307C A stone-like coal gas phase vanadium extracting method |
| 03/04/2009 | CN100465306C A sintered ore capable of improving viscosity of blast furnace slag and a preparation method thereof |
| 03/03/2009 | US7498006 Smelting arsenic gold ore concentrate and iron powder; heating to remove the volatilized arsenic sulfides; crystallization, producing arsenic; shutdown,cooling, charge the air, take out the gold-rich slag after dearsenization, and extract fine gold |
| 02/26/2009 | US20090049955 Method and Apparatus for the Recovery of the Secondary Metallurgy (LF) Slag and Its Recycling in the Steel Production Process by Means of Electric Furnace |
| 02/25/2009 | EP1769095A4 Recovery of nickel |
| 02/25/2009 | CN101373374A Bin control method and apparatus in sintering process |
| 02/25/2009 | CN101372719A Noncoking steel smelting method |
| 02/25/2009 | CN100463983C Method for reclaiming metal by copper smelting-furnace magnesia brick lining |
| 02/25/2009 | CN100463982C Steel-making dust condensate and manufacturing method and device |
| 02/25/2009 | CN100463975C Production of sponge iron |
| 02/22/2009 | CA2595275A1 The sequential lixivation and precipitation of metals from refractory ores by utilising variable oxidation reduction potentials and a variable ph system |
| 02/19/2009 | WO2009021389A1 A PROCESS OF SMELTING MONAZITE RARE EARTH ORE RICH IN Fe |
| 02/19/2009 | US20090044662 Method for pretreating sintering material |
| 02/18/2009 | CN101370949A Method for extracting precious metals |
| 02/18/2009 | CN101370948A Process for sintering on a sintering machine |
| 02/18/2009 | CN101368235A Pyrogenic pretreatment method for low-grade laterite nickel mine |
| 02/18/2009 | CN101368229A Manufacture of carbonaceous sphere with cement mixture as bond for concretion of mineral fine |
| 02/18/2009 | CN100462452C Production method of briquette for metal material |
| 02/18/2009 | CN100462451C Method of processing raw materials for production of ferrosilicon, silicocalcium and high purity silicon |
| 02/18/2009 | CN100462450C Process for dry type ore grinding employing vertical roller mill |
| 02/18/2009 | CN100462449C Magnesite hot enriching process |
| 02/12/2009 | WO2009020890A1 Method of producing metals and alloys by carbothermal reduction of metal oxides |
| 02/12/2009 | US20090039572 Microwave iron-making furnace |
| 02/12/2009 | CA2692541A1 Method of producing metals and alloys by carbothermal reduction of metal oxides |
| 02/11/2009 | EP2021518A1 Method and device for chlorination of ore-bearing materials |
| 02/11/2009 | CN101365813A Production of carbon containing metal graphite spherulite |
| 02/11/2009 | CN101364087A Sintering, mixing and water adding control method and system |
| 02/11/2009 | CN101363689A Sintering bench section temperature control method, device and system |
| 02/11/2009 | CN101363084A Sodium modification, alcination and vanadium extraction technology of stone coal |
| 02/11/2009 | CN101363079A Smelting method of iron rich mengite rare-earth mine |
| 02/11/2009 | CN100460531C Stoving apparatus for stoving method producing artificial pellet |
| 02/11/2009 | CN100460523C Technique for reclaiming iron from waste slag in production of boric acid and magnesium sulphate from ludwigite |
| 02/10/2009 | US7488370 Reducing cyanide consumption in gold recovery from finely ground sulphide ores and concentrates |
| 02/05/2009 | WO2009017434A1 Method for recovering non-ferrous, rare, radioactive and precious metals from refractory mineral raw materials |