| Patents for C22B 1 - Preliminary treatment of ores or scrap (10,434) |
|---|
| 01/25/2005 | US6846339 Process for upgrading low rank carbonaceous material |
| 01/22/2005 | CA2435779A1 A process for recovering platinum group metals from ores and concentrates |
| 01/20/2005 | US20050011309 Agglomerated quicklime or dolomitic quicklime compositions for electric arc furnace steelmaking |
| 01/19/2005 | CN1185356C Combustion improver for promoting sinter of iron concentrate |
| 01/13/2005 | WO2004083467A3 Recovery of metal values from cermet |
| 01/13/2005 | US20050006247 Chloride melt process for the separation and recovery of zinc |
| 01/13/2005 | US20050005737 Method for recovering metal values from concentrates of sulfide minerals |
| 01/12/2005 | CN1564874A Iron ore briquetting |
| 01/12/2005 | CN1563441A Manufacturing technqiue for enriching iron through modifying hematite |
| 01/12/2005 | CN1563440A Techhnique for reclaiming metal concentrate in obsolete PCB physically |
| 01/11/2005 | US6840981 Rotary bed-type direct reducing furnace; friction resistance |
| 01/06/2005 | US20050000320 Combined pre-treatment process for enabling feed material to be charged in direct reduction processes |
| 01/05/2005 | CN1561401A Chloride melt process for the separation and recovery of zinc |
| 01/05/2005 | CN1561400A Iron ore briquetting |
| 01/05/2005 | CN1560287A Press block by crushed iron and steel |
| 01/05/2005 | CN1560286A Preparation method for making block of dust mud of smelting steel by high pressure and cold solidifing |
| 12/29/2004 | WO2004113593A1 Electrochemical reduction of metal oxides |
| 12/29/2004 | WO2004113577A1 Method for producing mineral ore agglomerates using a hemicellulose binder and associated products |
| 12/29/2004 | WO2004113230A1 Extraction process for reactive metal oxides |
| 12/29/2004 | EP1490525A1 Pre treatment of multi-phase materials using high field strength electromagnetic waves |
| 12/29/2004 | CN1558959A Method for drying molding containing oxidized metal, method for reducing oxidized metal and rotary hearty type metal reduction furnace |
| 12/29/2004 | CN1557976A Furnace protecting acid pellet and production technology thereof |
| 12/28/2004 | US6835230 Hydrometallurgical zinc production process from sulfides, where ferric ion consumed by leaching is regenerated for reuse by introducing oxygen into the post-leaching solution flowing through feed pipes; shortens the leach time |
| 12/22/2004 | EP1339881B1 Method for the stabilization of a fluidized bed in a roasting furnace |
| 12/22/2004 | CN2665140Y An apparatus for pre-drying green ball |
| 12/21/2004 | CA2250701C Process for separating sulphide-containing materials using hydrogen peroxide |
| 12/18/2004 | CA2470286A1 A long term-stabilized suspension for covering iron mineral, and a process for its production |
| 12/16/2004 | US20040253175 Electrostatically enhanced tribochemical methods and apparatus |
| 12/16/2004 | US20040253157 Methods for recovering at least one metallic element from ore |
| 12/16/2004 | US20040251335 For sorting shredder residues of metal-containing wastes, e.g., vehicle bodies; ferromagnetic, non-ferromagnetic metals, granulate, fiber, and sand fractions are produced as end products |
| 12/16/2004 | US20040251173 Unit and method for processing of shredder residues and uses of a sand fraction produced thus |
| 12/16/2004 | US20040250710 Grinding sludge compacting machine |
| 12/16/2004 | DE10259309B4 Verfahren und Anlage zur kontinuierlichen Trocknung von verunreinigten Metallspänen Method and apparatus for continuous drying of contaminated metal shavings |
| 12/16/2004 | DE10224448B4 Verfahren zum Sintern von eisenoxidhaltigen Stoffen auf einer Sintermaschine A method for sintering iron oxide-containing substances on a sintering machine |
| 12/15/2004 | CN1555419A Method for producing reduced iron compact in rotary hearth reducing furnace, reduced iron compact, and method for producing pig iron using the same |
| 12/14/2004 | US6830605 Recovery of metal values from cermet |
| 12/14/2004 | CA2316415C Method and apparatus for drying iron ore pellets |
| 12/09/2004 | WO2004106564A2 Method for recovering at least one metallic element like cesium from ore |
| 12/09/2004 | US20040245681 Thermal treatment of the precursor material of a catalytically active material |
| 12/09/2004 | US20040244535 Housing containing waste; melting |
| 12/09/2004 | DE10321615A1 Production of zinc-deficient pellets made from substances containing iron and zinc for blast furnace process comprises moistening, mixing with magnesium chloride, pelleting and heating |
| 12/08/2004 | CN1553964A Method and apparatus for practicing carbonaceous-based metallurgy |
| 12/08/2004 | CN1552921A Method for improving quality of iron concentrate |
| 12/08/2004 | CN1179605C High efficiency induction melting system and method |
| 12/02/2004 | WO2004104518A1 Method for the analysis of gas produced by a titanium tetrachloride fluidized bed reactor |
| 12/02/2004 | WO2004104012A1 Method for the agglomeration of used material or fines from the production of organohalosilanes |
| 12/02/2004 | US20040238352 Production, refining and recycling of lightweight and reactive metals in ionic liquids |
| 12/02/2004 | US20040237335 Method for drying molding containing oxidized metal, method for reducing oxidized metal and rotary hearty type metal reduction furnace |
| 12/01/2004 | EP1482061A1 Brittle molded article and briquette using the same |
| 12/01/2004 | EP1481103A1 Method to reduce hydrosulphide and arsine emissions during wet ore processing |
| 11/25/2004 | WO2004101832A2 Microwave enhancement of the segregation roast |
| 11/25/2004 | US20040235179 Determining the concentration and ratio of carbon monoxide to carbon dioxide in the gaseous product of a fluidized bed reactor for producing titanium tetrachloride using infrared analysis |
| 11/25/2004 | DE10319626A1 Fluid bed process for heat treatment of bulk mineral solids, e.g. iron ore, comprises supply of higher-power fluidization gas near solids inlet zone |
| 11/24/2004 | CN2658162Y Automatic pore-forming device for aggomerate |
| 11/23/2004 | CA2221930C Chloride assisted hydrometallurgical extraction of metal |
| 11/23/2004 | CA2196981C Hydrometallurgical conversion of zinc sulfide to sulfate from zinc sulfide containing ores and concentrates |
| 11/23/2004 | CA2137812C Upgrading titaniferous materials |
| 11/18/2004 | WO2004099452A1 Iron ore pellets with reduction of abrasion, sticking, degradation and dust emission, and its production process |
| 11/18/2004 | CA2524637A1 Iron ore pellets with reduction of abrasion, sticking, degradation and dust emission, and its production process |
| 11/17/2004 | CN1546692A Pellet binder and its preparation method, pellet production process using the binder |
| 11/17/2004 | CN1176230C Process for calcining molybdenum ore concentrate |
| 11/16/2004 | US6818042 Providing re-concentrating mineral table arranged to separate concentrate ore at a concentrate discharge from middlings and tailings; setting table such that concentrate forms a smeltable concentrate; feeding ore material to table,operating |
| 11/11/2004 | WO2004096707A1 Process for the treatment of waste metal chlorides |
| 11/11/2004 | WO2004081244A8 Method for the refinement of gold |
| 11/11/2004 | US20040221426 Mixing iron oxide with water, pelletization |
| 11/10/2004 | EP1129225B1 Sulfatisation process for metal extraction from sulfide ores |
| 11/10/2004 | CN1544662A Plane circular multilayer sintering method and equipment |
| 11/09/2004 | US6814571 Arrangement and method for reducing build-up on a roasting furnace grate |
| 11/06/2004 | CA2466541A1 Passivation of sulfidic iron-containing rock |
| 11/04/2004 | US20040217070 Specific gravity separation of such as magnesia from nickel sulfide |
| 11/04/2004 | US20040216280 Method for making metal oxide agglomerates |
| 11/03/2004 | CN2652943Y Energy saving type iron-making pellet roasting vertical furnace |
| 11/02/2004 | US6811765 Thermal treatment of fine grain materials in a coarse-grain fluidized bed |
| 11/02/2004 | US6811759 Method of producing iron oxide pellets |
| 11/02/2004 | US6811031 Method and device for separating ore |
| 10/28/2004 | WO2004092421A1 Method and apparatus for producing reduced metal |
| 10/27/2004 | EP1471092A1 Binder for granulation molding of powder particles and granulated moldings |
| 10/27/2004 | CN2651261Y Multi-layer sintering furnace for gold ore concentrate |
| 10/27/2004 | CN1539903A Adhesive for forming pelleted powders and pelleted forming articles |
| 10/27/2004 | CN1173050C Low-temperature roasting and decomposing process of rare earth heading concentrated sucfuric acid |
| 10/26/2004 | CA2126147C Method of producing cold-moulded iron-containing briquettes |
| 10/21/2004 | US20040206207 Method for thiosulfate leaching of precious metal-containing materials |
| 10/20/2004 | EP1468766A1 Method for producing metal powder and metal powder, and electroconductive paste and monolithic ceramic capacitor |
| 10/20/2004 | EP1468124A1 Reductive method for production of metallic elements such as chrome using a crucible with a perforated wall |
| 10/20/2004 | EP1468123A1 Method for production of metallic elements of high purity such as chromes |
| 10/20/2004 | CN1537959A Cold aggregated pellet ore for ironmaking in blast furnace and its preparation method |
| 10/20/2004 | CN1537958A Method of reduction roasting high iron ilmenite |
| 10/19/2004 | US6805242 Method of reducing phosphate ore losses in a desliming process |
| 10/14/2004 | WO2004031421A3 Binder composition and process for agglomerating particulate material |
| 10/13/2004 | EP1189715B1 Zinc-based metal foamed bodies |
| 10/12/2004 | US6802886 Method of producing a metallized briquette |
| 10/07/2004 | US20040194940 Heat exchanger system used in steel making |
| 10/07/2004 | US20040194578 Briquette for raw material for iron manufacture and briquette for introduction into slag generating apparatus |
| 10/06/2004 | EP1464713A1 Process and system for working-up iron-containing, oil-contaminated waste |
| 10/06/2004 | EP1102651B1 Purification process for chromium |
| 10/06/2004 | CN2646485Y Elastic dual seal device for pallet car of sintering machine and firing strand |
| 10/06/2004 | CN1169976C Method for raising recovery rate of silver from ore containing sulfur, copper, lead, gold and silver |
| 10/05/2004 | US6800259 Using a copper compound; reduction |
| 09/30/2004 | WO2004083468A1 Method for preventing oxidation of sulfide minerals in sulfide ore |
| 09/30/2004 | WO2004083467A2 Recovery of metal values from cermet |