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