Patents for C22B 1 - Preliminary treatment of ores or scrap (10,434)
07/2004
07/08/2004CA2510009A1 Treatment of granular solids in an annular fluidized bed with microwaves
07/07/2004EP1434892A1 Chloride melt process for the separation and recovery of zinc
07/07/2004CN1156590C Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace
07/07/2004CN1156589C Dearsenfifying method for Cu-Zn-Co material
07/07/2004CN1156588C Sulfurizing reduction and roasting and voltizing dearsenication method for copper-zine-cobalt material
07/01/2004WO2004055224A1 Process for producing sintering feedstock and apparatus therefor
07/01/2004DE10260745A1 Verfahren und Anlage zur thermischen Behandlung von körnigen Feststoffen Process and apparatus for the thermal treatment of granular solids
06/2004
06/30/2004CN1509339A Apparatus and method for recycling iron laden dust and sludge in ingot iron manufacturing process using semi-soft coking coal and fine iron ore
06/29/2004US6755890 Positioning baffles from roof downwards forcing small particle metallurgical coke to settle in reduction zone
06/24/2004US20040118954 rotary grinding mill containing grinding bodies of steel or cast iron balls; atomizating high carbon steel pellets or cast iron pellets in a granulometry range ower than 15 mm,; mixing pellets with the balls in a preset weight ratio
06/23/2004CN1507498A Method and installation for utilziing waste products, which contain hydrocarbons and iron oxide particularly mill scale sludges and coal fines
06/23/2004CN1154749C System for controlling cooling for agglomerate
06/22/2004CA2295350C Method for manufacturing reduced iron agglomerates and apparatus therefor
06/22/2004CA2281003C Production of iron ore pellets
06/17/2004WO2004050927A1 Method for separating platinum group element
06/17/2004WO2004050924A1 Cold briquetting and pelletisation of mineral fines using an iron-bearing hydraulic binder
06/17/2004US20040115581 Method and device for treating bulk products
06/17/2004US20040112834 Mineral ore slurry viscosity modification method
06/16/2004CN1505688A Arrangement and method for reducing build-up on a roasting furnace grate
06/10/2004US20040107800 Process for cold briquetting and pelletisation of ferrous or non-ferrous ores or mineral fines by iron bearing hydraulic mineral binder
06/09/2004EP1426451A1 METHOD FOR PRODUCING REDUCED IRON COMPACT IN ROTARY HEARTH REDUCING FURNACE, REDUCED IRON COMPACT, AND METHOD FOR PRODUCING PIG IRON USING THE SAME
06/09/2004EP1425428A2 Method for obtaining cobalt and nickel from ores and ore concentrates
06/09/2004EP1425427A1 Iron ore briquetting
06/09/2004CN1502709A Technology for treating calcined pyrite by chemical submersion washing method
06/09/2004CN1152968C Adhesive for nodulizing in non-ferrous metals and its preparing process
06/08/2004US6745679 Grinding sludge compacting machine
06/02/2004EP1424403A1 Procedure to agglutinate copper concentrates in a gravel heap, to be later leached on a non-flooded bed, to which an agglutinating solution containing calcium chloride, and a second solution containting sulfate ion, are added
06/02/2004EP1423545A1 Iron ore briquetting
06/02/2004EP1117845B1 Method for the production of a bulk of molten metal, a metallurgical product, and use of such a product
06/02/2004CN1500891A Mini-pelletized sinter produced by sludge containing ferrum and production process thereof and special shaft furnace
06/02/2004CA2450525A1 Process for leaching acid-consuming ores
06/01/2004US6743275 Alkaline metal silicate; recycling the particles
06/01/2004CA2069482C Modified native starch base binder for pelletizing mineral material
05/2004
05/27/2004US20040099396 Method for forming consumable electrodes from metallic chip scraps
05/26/2004EP1422303A1 Method of producing metal foam bodies of Zn-alloys
05/26/2004EP1216312B1 Process for manufacturing corrosion resistant composite metal products
05/26/2004CN1151288C Process for decomposing rare-earth ore by acid method
05/26/2004CN1151280C Techlogy for smelting iorn in blast furnace with pre-reducing coal-base pellets
05/25/2004US6739454 Reaction of the methyl or ethyl ester of a fatty acid having 6 to 22 carbon atoms with a hydroxylamine salt and an alkali metal hydroxide in the presence of water, either a hydrocarbon oil or a fatty oil
05/21/2004WO2004042094A1 Reducing cyanide consumption in gold recovery from finely ground sulphide ores and concentrates
05/19/2004CN1498280A Method for using pre-jel for producing self-reducing agglomerates
05/18/2004CA2238383C Process of hot briquetting granular sponge iron
05/15/2004CA2850216A1 Method for thiosulfate leaching of precious metal-containing materials
05/13/2004WO2004040027A1 A process for simultaneous recovery of chromium and iron from chromite ore processing residue
05/13/2004WO2004039492A2 Gas cleaning process and equipment therefor
05/13/2004US20040089102 Unit and method for the treatment of shredder residues and use of granulate fraction thus produced
05/13/2004CA2505935A1 Gas cleaning process and equipment therefor
05/12/2004CN1495279A Method for removing coating on magnesium alloy material
05/11/2004US6733565 Metal powders provide rapid dissolution of the alloy and improved heat transfer
05/11/2004CA2112249C Heat processing apparatus
05/06/2004WO2004038048A1 Method and device for carrying out a tribochemical reaction
05/06/2004WO2004038047A1 Process for magnesium granules
05/06/2004US20040086820 To reduce and remove the build-up formed on the fluidized bed grate in the roasting of fine-grained material by increasing the feed of gas using extra gas jets situated above the grate
05/06/2004US20040086438 Process for simultaneous recovery of chromium and iron from Chromite Ore Processing Residue
05/06/2004US20040083853 Heating, carbonizing the biomass in an oxygen-free furnace, reducing the metal oxide, agglomerating the mixture, melting; producing reduced iron from iron oxide by using biomass as reducing agent
05/06/2004DE10249163A1 Verfahren und Vorrichtung zur Nutzung von Faraday-Instabilitäten zur Durchführung von tribochemischen Reaktionen A method and apparatus for utilizing Faraday instabilities on the implementation of tribochemical reactions
05/05/2004CN1493707A New technology of copper convertor flue dust slag cluster smelting lead and its cluster formale
04/2004
04/29/2004WO2004035845A1 Process and apparatus for extracting zinc
04/29/2004WO2004035844A1 The process for extracting gold in arsenic-containing concerntrate of gold and the equipment thereof
04/29/2004US20040081603 Beneficiation process for concentration/calcination of zinc silicate ores minerales
04/29/2004US20040081602 Roasting raw materials; using leaching solutions
04/29/2004US20040080084 Empty-can treatment system and empty-can treatment method
04/29/2004US20040079262 Plant for the thermal treatment of material and operation process thereof
04/28/2004EP1412544A1 Method for recovering nickel and eventually cobalt by extraction from nickel-containing laterite ore
04/28/2004EP1294953B1 Device for directly reducing ore fine and installation for carrying out said method
04/28/2004CN1147597C Cold-consolidated rusted cake containing iron dust
04/27/2004CA2252599C Fluidized bed roasting process
04/27/2004CA2114439C Ore pelletisation
04/22/2004WO2004033734A1 Process for extracting quantities of precious metals
04/22/2004US20040076578 Comprises tubular reactor with continuous serpentine path; comprises pretreated feedstock including ilmenite, leueoxene, or titania slag leached with hot hydrochloric acid
04/22/2004US20040074339 A method and apparatus of reclaiming magnesium from post consumer scrap and/or secondary magnesium turnings by feeding the post consumer scrap and/or secondary magnesium turnings into a rotary tray dryer and subjecting the post consumer
04/21/2004EP1409752A2 Use of oil-charged mill-scale in shaft furnaces and converters
04/21/2004CN1490418A Method and system for extracting gold from arsenic contained headings
04/21/2004CN1146670C On-line denitration method for sinter process
04/15/2004WO2004031421A2 Binder composition and process for agglomerating particulate material
04/15/2004US20040071583 Continuous band sintering iron oxide bearing ferroalloy using carbon-bearing material as the reducing agent
04/15/2004CA2499146A1 Binder composition and process for agglomerating particulate material
04/14/2004EP1408124A1 Method for producing feed material for molten metal production and method for producing molten metal
04/14/2004CN1489635A Fluidized bed chloride method for obtaining metal oxide concentrate, expecially titanium dioxide ERE
04/13/2004US6719144 Method of separating oxide from dross, device for separating oxide from dross, and jet solder tank
04/09/2004CA2444158A1 Method for producing feed material for molten metal production and method for producing molten metal
04/08/2004WO2004029308A1 Method for osmium distillation into gas phase from sulphur-acid sludge of copper production
04/08/2004US20040067155 Consumable electrodes; cold molding into cylindrical briquets; sealing capsules; pressurization; deformation
04/08/2004US20040065987 Apparatus for leaching zinc concentrates
04/07/2004EP1405925A1 Method of manufacturing metal iron
04/07/2004EP1405924A1 Method for producing granular metal
04/07/2004CN1488004A Improved beneficiation process for concentration/calcination of zinc silicate ores and minerals
04/04/2004CA2444309A1 Chemical formulations for treating self-heating metal ores
04/01/2004WO2003100412A3 Method of ore treatment
04/01/2004US20040060393 Concentrate fed into furnace from wall of furnace; oxygen-containing gas fed via gas nozzles under grate in bottom of furnace to fluidize the concentrate and oxidize it during fluidization
03/2004
03/31/2004EP1403389A1 Method for producing briquettes from finely dispersed metal oxides
03/31/2004EP1402077A1 Method for compacting rolling-mill scale
03/31/2004EP1401583A1 Method and device for fine grinding of mineral particles
03/31/2004CN2608515Y Production equipment of low carbon manganese iron
03/25/2004WO2004024961A1 Method for reduction treatment of metal oxide or ironmaking waste, and method for concentration and/or recovery of zinc and/or lead
03/25/2004WO2004024960A1 Method for producing a zinc-containing sinter for use as feedstock for thermal zinc extraction
03/18/2004WO2004022795A1 Process for recovering platinum group metals from material containing base metals
03/18/2004WO2004022219A1 Propulsive nozzle injection method in fluidised bed reactors
03/18/2004US20040050209 Method for the stabilization of a fluidized bed in a roasting furnace
03/18/2004DE10240766A1 Production of a zinc-containing sinter used as feed material for the thermal recovery of zinc comprises sintering a zinc-containing secondary raw material to which a sulfur-containing secondary energy carrier has been added
1 ... 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 ... 105