Patents for C22B 1 - Preliminary treatment of ores or scrap (10,434)
11/2003
11/25/2003US6652819 Combusting the carbonaceous residues at 500-690 degrees C.; heating the residues at a specific temperature and oxygen partial pressure to obtain a tetravalent vanadium compound; leaching with sulfuric acid; basification to precipitate
11/25/2003US6652622 Separating clays and fines from a crushed refractory sulfide ore, forming a heap, adding concentrate of separated sulfide fines to the heap, bioleaching (biooxidation) and hydrometallurgically treating bioleached ore
11/25/2003US6652620 Cooling hot reduced iron briquettes at low cost without degrading the strength; primary cooling with steam, secondary cooling with steam and sprayed water, and final cooling with sprayed water at given temperature range
11/20/2003WO2003095682A1 Method to improve iron production rate in a blast furnace.
11/20/2003WO2003002775A3 Method and plant for treating flue gas dust of electric steelmaking furnaces and steel mills using pelletization
11/20/2003CA2485517A1 Method to improve iron production rate in a blast furnace
11/19/2003CN1457369A Method of granulation treatment of raw material for iron making and granulation treatment agent for iron making
11/19/2003CN1456494A Production of sulphuric acid by firing sulphur with mixed sulphureous iron ore
11/12/2003EP1360339A1 Silicate binders including calcium bearing curing agent
11/12/2003EP1289893B1 Device and method for treating a refuse material containing hydrocarbons
11/12/2003CN2585687Y Antiwear pelletizer
11/12/2003CN1455006A Pellet additive
11/05/2003CN1453379A Wet process of extracting vanadium and/or molybdenum from waste catalyst
11/05/2003CN1453377A Process of adhering steel powder and steel grain into lump steel
11/05/2003CN1126821C Process for extracting vanadium
11/05/2003CN1126638C Method for removing metal coating layer from metal wastes
11/04/2003US6641642 High temperature pressure oxidation of ores and ore concentrates containing silver using controlled precipitation of sulfate species
11/04/2003US6641392 Method for regulating a roasting furnace
11/04/2003CA2156823C Method and system for removing and/or causing recycling of materials
10/2003
10/29/2003EP1357195A2 Method for reducing wet waste from metal refining processes
10/23/2003WO2003087416A1 Process for extracting platinum group metals
10/23/2003US20030198779 Method of producing iron oxide pellets
10/23/2003US20030197313 Elevated discharge gas lift bubble pump and furnace for use therewith
10/21/2003US6635098 Low cost feedstock for titanium casting, extrusion and forging
10/15/2003CN1449308A Unit and method for processing of shredder residues and use of a sand fraction produced thus
10/09/2003WO2003083146A1 Pre treatment of multi-phase materials using high field strength electromagnetic waves
10/09/2003US20030188603 Comprises mixing blast-furnace sludge with iron-oxide containing powder, agglomerating, feeding into continuous hearth, then heating to remove zinc
10/09/2003DE20310018U1 Molded body comprises mixture of non pre-dried organic and inorganic residual materials having high moisture, organic and inorganic pre-dried residual materials and/or aggregates, and hydraulically active binder or binder mixture
10/08/2003EP1350856A2 Method for making reduced iron using blast-furnace sludge
10/08/2003CN1446930A Techniques of exhausting fume, electrostatic dust collection, lead powder granulation in cone stove for glass bulb of color picture tube
10/02/2003WO2003080874A1 Process and apparatus for the direct reduction of iron oxides in an electrothermal fluidized bed and resulant product
10/02/2003US20030185733 Oxidising "organics" in precious metal organic compositions such as heterogeneous Pt/C or homogeneous precious metal catalysts and producing a precious metal oxide with few by-products and low losses of precious metal.
10/01/2003EP1073872B1 Apparatus for conducting gas through material to be sintered
09/2003
09/30/2003CA2083800C Process for the preparation of an iron containing cooling agent used in a steel mill converter and cooling agent thereof
09/25/2003WO2003078670A1 Method for separating platinum group element
09/25/2003WO2003078067A2 Method and installation for processing a heap of debris that is fouled by oil
09/24/2003CN1444509A Unit and method for treatment of shredder residues
09/24/2003CN1444508A Unit and method for treatment of shredder residues and use of granulate fractions thus produced
09/18/2003WO2003076671A1 Methods to reduce hydrosulphide and arsine emissions during wet ore processing
09/18/2003US20030172777 Use of oil-charged mill-scale in shaft furnaces and converters after chemical binding and pelleting thereof
09/18/2003CA2478033A1 Methods to reduce hydrosulphide and arsine emissions during wet ore processing
09/17/2003EP0958385B1 Method of agglomerating oil-containing steel mill waste
09/17/2003CN1442496A Sintered breeze inhibitor and its preparation method
09/09/2003US6616902 Heating the alumina process feedstock to a temperature of 400-650 C. by direct contact with combustion gases, and cooling the heated feedstock to a temperature at which it can be handled and fed to the alumina process (Bayer process)
09/04/2003WO2003006694A8 Process for passivating sulfidic iron-containing rock
09/04/2003US20030165416 Methods to control H2S and arsine emissions
09/03/2003EP1339882A1 Method for reducing build-up on a roasting furnace grate
09/03/2003EP1339881A1 Method for the stabilization of a fluidized bed in a roasting furnace
09/03/2003CN1439859A Sintering system for dressing balls
09/03/2003CN1439731A Oxide separators
09/02/2003USH2082 Oxidized normal paraffinic products and their application
09/02/2003US6613271 Apparatus and methods for recovering valuable metals
09/02/2003US6612314 Process for removing oil containing machining fluid from machined chips
08/2003
08/28/2003US20030159309 Device and method for treating a refuse material containing hydrocarbons
08/28/2003US20030159281 Method for producing metal powser and metal powder, and electroconductive paste and monolithic ceramic capacitor
08/27/2003EP1338660A1 Metal oxide-containing green pellet for reducing furnace, method for production thereof, method for reduction thereof, and reduction facilities
08/21/2003US20030154590 Circuit member processor
08/20/2003CN1436611A Harmless treatment system for harmful organic compound and its recycling method of resultant
08/19/2003CA2149801C Method for water-granulating calcium ferrite slag
08/13/2003CN1436153A Device and method for treating refuse material contg. hydrocarbons
08/12/2003US6605130 Given particle size of iron oxide in the ore and maximum fluidity of the carbonaceous material such as coal; efficient reduction reaction
08/07/2003WO2003064709A1 Brittle molded article and briquette using the same
08/07/2003US20030148879 Technical ceramics made from combined municipal waste combustor ash
08/07/2003US20030147789 System for detoxification of toxic organic chlorinated compound and method of recycling the detoxified waste
08/06/2003EP1332002A1 Unit and method for processing of shredder residues and use of a sand fraction produced thus
08/06/2003EP1332001A1 Unit and method for the treatment of shredder residues and use of granulate fractions thus produced
08/06/2003CN1434876A Method of producing metallized briquette
08/05/2003US6602319 Process for the recovery of gold and silver from used refractory bricks
08/05/2003US6602316 Briquette for lowering the viscosity of metallurgical slag and process for its production
07/2003
07/31/2003WO2003062480A1 Reductive method for production of metallic elements such as chrome using a crucible with a perforated wall
07/31/2003WO2003062479A1 Method for production of metallic elements of high purity such as chromes
07/31/2003WO2003062477A2 Iron ore macropellets and a process for producing them
07/30/2003CN1433483A Porous agglomerates containning iron and at least one further element from groups 5 or 6 of the periodic table for use as alloying agent
07/30/2003CN1432658A Iron ore powder magnetizing cylindrical granulator
07/29/2003CA2290131C Pellets incorporated with carbonaceous material and method of producing reduced iron
07/24/2003WO2003060172A2 Pressure oxidation of ore containing silver
07/24/2003WO2003059820A1 Technical ceramics made from combined municipal waste combustor ash
07/24/2003US20030136226 Flame heating of fines; agglomeration
07/24/2003US20030136225 High temperature pressure oxidation of ores and ore concentrates containing silver using controlled precipitation of sulfate species
07/23/2003EP1329524A1 Brittle formed product and iron-based power material and method for manufacturing these materials
07/23/2003EP1328331A1 Method for inhibiting dioxin formation in fumes produced during iron ore sintering
07/17/2003US20030131908 Process for passivating sulfidic iron-containing rock
07/16/2003EP1327693A1 Process for extracting cobalt and nickel from ores and ore concentrates
07/16/2003EP1263995A4 Method of sintering and sinter bed composition
07/16/2003CN1429920A Application of limonite as base material in pelletizing agglomerate production method
07/16/2003CN1429919A Method of producing titanium enriched material using titanium mineral
07/15/2003US6592806 Reduced iron discharger in rotary hearth reducing furnace
07/15/2003US6592644 Leaching the copper-sulfidic and/or copper/iron-sulfide ores, ores are converted to covelline, pyrite and accompanying sulfides by addition of sulfur in conversion step prior to leaching; extracting the nobel, rare earth and copper metals
07/10/2003WO2003056582A1 Method for recycling rare earth element magnet scrap and bonded magnet resulting therefrom
07/10/2003WO2003056045A1 Chromium removal from leach liquors produced during high pressure acid leaching of lateritic ores
07/10/2003WO2003056039A1 An apparatus and method for recycling dust and sludge containing iron in ironmaking process using coal and fine ore
07/10/2003US20030129113 Upgrading titaniferous materials
07/10/2003US20030129077 Aluminium base alloy of scrap metal and casting alloy produced from this
07/09/2003EP1325165A1 Recovery of nickel and cobalt values from a sulfidic flotation concentrate by chloride assisted oxidative pressure leaching in sulfuric acid
07/08/2003US6589667 Spherical porous iron powder and method for producing the same
07/08/2003CA2222639C Metal and fluorine values recovery from fluoride salt matrices
07/08/2003CA2131793C Composition and method for agglomerating ore
07/03/2003US20030122289 Roaster with stabilized fluidized bed for roasting zinc concentrate
07/03/2003US20030121833 Method of reducing phosphate ore losses in a desliming process
07/03/2003US20030121366 Process and system for recovering valent metals from refuse secondary batteries
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