Patents for C22B 1 - Preliminary treatment of ores or scrap (10,434)
07/2003
07/02/2003EP1323838A1 Briquette as material for steel making and method for production thereof
07/02/2003EP1119645B1 Process and apparatus for recovering metal material from waste material
07/01/2003US6585800 Method for making molten metal
06/2003
06/26/2003WO2003052149A1 Iron-ore pellets with reduced abrasion, sticking, degradation and dust emission, and a process for producing them
06/26/2003US20030116662 Ore comminution process
06/25/2003CN1426485A Precious metal recovery from organics-precious metal compositions with supercritical water reactant
06/24/2003US6582670 Feed processing for improved alumina process performance
06/24/2003US6582491 Method for producing molten iron in duplex furnaces
06/24/2003US6581779 Method of the magnetic loading of a sintering material
06/19/2003WO2003025234A3 Method for obtaining cobalt and nickel from ores and ore concentrates
06/19/2003US20030110891 Iron ore reduction method and installation therefor
06/18/2003CN1424412A Preparation for raw materials for blast furnace
06/17/2003US6579505 Method of producing iron oxide pellets
06/12/2003WO2003047768A1 Method for inhibiting oxidation of metal sulfide-containing material
06/12/2003US20030108463 Process for purifying sand
06/12/2003US20030106395 Reducing an iron oxide and another oxide, compacting in the absence of a binder and sintering; porosity of 20-65% by volume
06/11/2003CN1422966A Sintered ore water-charged cooling method and apparatus
06/11/2003CN1422965A Burden agglomeration technology of smelting production by electric heating method
06/10/2003US6575390 Pretreatment apparatus for raw materials for production of reduced iron
06/05/2003WO2003046232A1 Integration processes of the treatments of zinc silicate concentrates or zinc silicate ore and roasted concentrates of zinc sulphides
06/05/2003WO2003046231A1 Electromagnetic pyrolysis metallurgy
05/2003
05/27/2003US6569224 Hydrometallurgical process for the recovery of nickel and cobalt values from a sulfidic flotation concentrate
05/23/2003CA2363762A1 Electromagnetic pyrolysis metallurgy
05/20/2003US6565623 Method and apparatus for curing self-reducing agglomerates
05/15/2003US20030089200 Heating and reducing a compact mixture of iron oxide powder and carbon powder, with the carbon in the mixture as the reducing agent; efficient reduction to increase productivity
05/14/2003EP0614993B1 Method for producing sintered ore
05/14/2003CN1418258A Method for regulating roasting furnace
05/14/2003CN1417355A Pollution-less process of converting metal sulfide concentrate into metal concentrate
05/13/2003CA2091474C Preparation of granular compositions
05/08/2003US20030085496 Device for continuously measuring the temperature in pelletizing furnaces
05/07/2003EP0970258B1 Polymeric combinations used as copper and precious metal heap leaching agglomeration aids
05/07/2003CN1416475A Method of sintering and sinter bed compsn.
05/07/2003CN1415766A Composite ball rolls of manganese and its preparation method
05/06/2003CA2296234C Method for manufacturing reduced iron pellets
05/02/2003EP1306452A2 Method for making metal oxide agglomerates
05/02/2003EP1235942A4 Nickel powder desulfurisation
04/2003
04/30/2003CN2547739Y Self-baking coking briquette
04/30/2003CA2427521A1 Metal oxide-bearing green pellets for reducing furnace, method of production of same, method of reduction of same, and reduction facility
04/24/2003WO2003033193A2 Feedstock materials for semi-solid forming
04/24/2003US20030075014 Compression molding to form compact with use of grinding chips from machining iron based metals/steels
04/24/2003CA2405951A1 Method for making metal oxide agglomerates
04/23/2003CN1412106A Equipment for making acid by using pyrite (sand) and method for making acid by means of full combustion of solid sulfur
04/23/2003CN1106452C Method for water-granulating calcium ferrite slag
04/22/2003US6551548 Apparatus for producing reduced iron and compact drying
04/17/2003WO2003031666A1 Chloride melt process for the separation and recovery of zinc
04/17/2003WO2003031659A1 Method for drying molding containing oxidized metal, method for reducing oxidized metal and rotary hearth type metal reduction furnace
04/17/2003DE19780281C1 Separating heavy metals from sulphide-containing residual products from mining and metal processing
04/17/2003CA2460883A1 Chloride melt process for the separation and recovery of zinc
04/16/2003EP1301781A2 Method and apparatus for the assay of precious metals
04/16/2003EP1301641A2 Agglomerating particulate ore materials using polymeric binders
04/02/2003EP1153527A4 High efficiency induction melting system
04/02/2003EP0866730B1 Polymer coated powders
04/01/2003CA2222900C Method of biotreatment for solid materials in a nonstirred surface bioreactor
03/2003
03/27/2003WO2003025234A2 Method for obtaining cobalt and nickel from ores and ore concentrates
03/27/2003WO2003025231A1 Method for producing reduced iron compact in rotary hearth reducing furnace, reduced iron compact, and method for producing pig iron using the same
03/27/2003WO2003006695B1 Hydrometallurgy method for leaching oxidised ores and metal recovery
03/27/2003CA2460116A1 Method for obtaining cobalt and nickel from ores and ore concentrates
03/26/2003EP1294955A1 Precious metal recovery from organics-precious metal compositions with supercritical water reactant
03/26/2003EP1294953A1 Device for directly reducing ore fine and installation for carrying out said method
03/26/2003EP1039985B1 Method of removing a metallic coating layer from scrap metal pieces
03/26/2003CN1405338A Method of comprehensive recovery of valued elements from Zinc-immersing slag
03/26/2003CN1405337A Low-temperature roasting and decomposing process of rare earth heading concentrated sucfuric acid
03/26/2003CN1405336A Method for manufacturing hearth layer ball of sintered ore for iron-smelting
03/20/2003WO2002075005A3 Method for the use of electric steel plant slag for self-reducing agglomerates
03/20/2003US20030051582 The rice hull ash is blended with lime or dolime, and also with a mixture of water and molasses to generates heat as the lime and water react to form lime hydroxide, a known binder; the generated heat reduces the energy required for drying
03/19/2003EP1078107B1 Ore comminution process using bed-compression method at low pressures and installation therefor
03/19/2003CN1403603A Dearsenifying process for anode mud with high As and Pb content
03/13/2003WO2003020987A1 Method of treating steelmaking waste, and movable hearth furnace therefor
03/13/2003US20030047038 Raw material compring metal oxide and/or the metal hydroxide such as iron ore mixed with carbonaceous material is in a prereduction furnace; melting and reducing the mixture of raw materials using combustion heat of the carbonaceous material
03/12/2003EP1290232A1 Method of producing a metallized briquette
03/12/2003EP1289893A1 Device and method for treating a refuse material containing hydrocarbons
03/12/2003CN1402799A Method for sintering ferroalloy materials
03/12/2003CN1102872C Purification process for chromium
03/06/2003WO2003018850A1 Method in the manufacture of steel
03/06/2003US20030041693 Agglomerating and sintering iron and zinc ore and ore concentrates, steel mill ferrous waste and zinc mill waste, includes mixing with agglomeration agent sodium silicate, water soluble polymers, or aqueous emulsions of oils
03/06/2003US20030041692 Method and apparatus for leaching zinc concentrates
03/05/2003EP1287168A1 Iron ore reduction method and installation therefor
03/05/2003CN1400323A Separation process of rare metal regenerated alloy by using chloridization method
03/05/2003CN1400320A Method for raising recovery rate of silver from ore containing sulfur, copper, lead, gold and silver
03/05/2003CN1102662C Apparatus and process for preheating of wast iron and steel scrap
02/2003
02/27/2003US20030037485 Process for upgrading low rank carbonaceous material
02/27/2003DE20219644U1 Device for continuously drying contaminated aluminum swarf comprises a rotating drum heated using a burner and having a first end at which the swarf is continuously introduced and a second end at which the dried swarf is ejected
02/26/2003CN1399688A Method and facilities for metal smelting
02/20/2003WO2002040724A8 Method for reducing build-up on a roasting furnace grate
02/20/2003US20030033906 Chlorine leaching; oxidation pressure leaching
02/20/2003CA2398329A1 Process for purifying sand
02/13/2003WO2003012154A1 Iron ore briquetting
02/13/2003WO2003012153A1 Iron ore briquetting
02/13/2003WO2003012152A1 Iron ore briquetting
02/13/2003WO2002075008A3 Method for using a pre-jel for producing self-reducing agglomerates
02/13/2003US20030029944 Method and apparatus for facilitating recovery of desired materials from ore
02/12/2003EP1102651A4 Purification process for chromium
02/12/2003CN1396282A Equipment for preparing regenerated fluoride salt or alumina from waste of aluminium electrolysis
02/12/2003CN1396278A Process for calcining molybdenum ore concentrate
02/11/2003CA2292563C Method for processing material comprising aluminium and plastic
02/11/2003CA2266301C Method of producing reduced iron agglomerates
02/06/2003US20030027503 Grinding sludge compacting machine
02/05/2003EP0843740B1 Reducing iron oxides in rotary hearth furnace
02/04/2003US6514311 Clean process of recovering metals from waste lithium ion batteries
01/2003
01/30/2003WO2003008652A1 Method of manufacturing metal iron
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