Patents
Patents for C22B 4 - Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys (1,486)
07/2005
07/26/2005US6921473 Blending particulate reinforcement with metal oxide or semi-metal oxide powder; sintering; removing oxygen by electrolysis under conditions such that reaction of oxygen rather than metal deposition occurs at an electrode surface
07/12/2005US6915750 Plasma reactor-separator
07/07/2005US20050145070 Producing metallic articles by reduction of nonmetallic precursor compounds and melting
07/07/2005US20050145065 Electroslag cold hearth; pool of molten liquid metal, overlying slag layer, an ingot mold; raw material in the form of a feed electrode; over flow dam prevents inclusions; metal source can be a salt of desired metal
06/2005
06/30/2005WO2005025774A3 Method and apparatus for optimized mixing in a common hearth in plasma furnace
06/23/2005WO2005017233A3 Insulated cold hearth for refinning metals having improved thermal efficiency
06/15/2005CN1206377C V2O3 electro-aluminothermic process for smelting FeV
06/08/2005EP1537248A1 Producing metallic articles by reduction of nonmetallic precursor compounds and melting
05/2005
05/19/2005US20050103157 Recovering metals trapped in ores and slags by reacting laterites, magnetites or iron oxides with carbon, chloride and water using microwave radiation as the primary energy source; the water, carbon and chloride can be recycled
05/18/2005CN1202272C Apparatus for producing low-carbon manganese-iron using manganese-rich slag
05/11/2005EP1529121A1 Process and apparatus for the direct reduction of iron oxides in an electrothermal fluidized bed and resulant product
05/11/2005CN1614044A Production of Si-Al-Ba alloy in 35000KVA mine heating furnace
05/11/2005CN1614043A Production of Si-Al-Fe alloy in 35000KVA mine heating furnace
05/05/2005US20050092130 Process and apparatus for the direct reduction of iron oxides in an electrothermal fluidized bed and resultant product
05/04/2005CN1200124C Furnace charge for one-step process of producing RE ferro-silicon alloy
04/2005
04/28/2005WO2005038092A1 Electrochemical reduction of metal oxides
04/28/2005US20050089460 Method of removing mercury from mercury contaminated materials
04/26/2005US6884279 Producing metallic articles by reduction of nonmetallic precursor compounds and melting
04/07/2005WO2005031014A1 Process and apparatus for recovery of non-ferrous metals from zinc residues
04/07/2005CA2539166A1 Process and apparatus for recovery of non-ferrous metals from zinc residues
04/06/2005EP1519805A1 Method for preparing metallic alloy articles without melting
04/06/2005EP1519804A1 Method for fabricating a metallic article without any melting
03/2005
03/24/2005WO2005025774A2 Method and apparatus for optimized mixing in a common hearth in plasma furnace
03/24/2005US20050061446 Plasma-assisted joining
03/23/2005CN1598029A Technology for united producing rare earth calcium magnesium silicon iron alloy by mining hot furnace middle frequency induced electric furnace hot liquid
03/22/2005US6870124 Plasma-assisted joining
03/16/2005CN1594613A Raw material for preparing aluminum-silicon alloy by electrothermal process
03/16/2005CN1594612A Method for producing aluminum-silicon alloy using andalusite as raw material
03/10/2005WO2005022062A1 Electric reducing furnace
03/10/2005WO2005022060A2 Electrode arrangement as substitute bottom for an electrothermic slag smelting furnace
03/10/2005CA2536617A1 Electrode arrangement as substitute bottom for an electrothermic slag smelting furnace
02/2005
02/24/2005WO2005017233A2 Insulated cold hearth for refinning metals having improved thermal efficiency
02/24/2005US20050041719 Electrode arrangement as substitute bottom for an electrothermic slag smelting furnace
02/17/2005US20050034973 Discharge reactor fuse link
02/17/2005DE10335847A1 Electric arc reduction furnace for reducing slag in the recovery of metallic components comprises a charging opening for charging material which simultaneously acts as an exhaust gas line opening for the gas produced
02/09/2005EP1504464A2 Plasma-assisted nitrogen surface-treatment
02/02/2005EP1502490A1 Plasma-assisted joining
02/02/2005EP1502489A1 Plasma generation and processing with multiple radiation sources
02/02/2005EP1502488A1 Plasma-assisted decrystallization
02/02/2005EP1502487A1 Plasma-assisted coating
02/02/2005EP1502486A1 Plasma catalyst
02/02/2005EP1502480A1 Plasma-assisted heat treatment
02/02/2005EP1502287A2 Plasma-assisted processing in a manufacturing line
02/02/2005EP1502274A1 Plasma-assisted gas production
02/02/2005EP1502012A1 Plasma-assisted engine exhaust treatment
02/02/2005EP1501959A1 Plasma-assisted enhanced coating
02/02/2005EP1501911A1 Plasma-assisted doping
02/02/2005EP1501649A1 Plasma-assisted sintering
02/02/2005EP1501632A1 Plasma-assisted carburizing
02/02/2005EP1501631A1 Plasma-assisted formation of carbon structures
01/2005
01/27/2005US20050016324 Electomagnetic pyrolysis metallurgy
01/26/2005EP1500890A1 Plasma reactor-separator
01/18/2005US6843058 Method for making gypsum and zinc sulfide
12/2004
12/29/2004EP1490525A1 Pre treatment of multi-phase materials using high field strength electromagnetic waves
12/29/2004EP1257679B1 Electrolytic reduction of metal oxides such as titanium dioxide and process applications
12/23/2004US20040255721 Heating and reduction of metal precursor compound to metal using alcoholic solvent
12/22/2004EP1489192A1 Electrolytic reduction of metal oxides such as titanium dioxide and process applications
12/21/2004US6833019 Microwave assisted continuous synthesis of nanocrystalline powders and coatings using the polyol process
12/16/2004US20040250741 Plasma reactor-separator
12/09/2004US20040245681 Thermal treatment of the precursor material of a catalytically active material
11/2004
11/30/2004US6824585 Converting the titanium ore to titanium tetrachloride, the latter continuously reduced to titanium metal in a plasma reactor in the presence of a metallic reductant under inert gas at atmospheric pressures
11/25/2004WO2004101832A2 Microwave enhancement of the segregation roast
11/24/2004CN1177068C Method for producing iron alloy by raw coal instead of coke
11/23/2004US6821500 Thermal synthesis apparatus and process
11/18/2004WO2004052778A3 Plasma synthesis of metal oxide nanopowder and apparatus therefor
10/2004
10/21/2004US20040208805 Thermal synthesis apparatus
10/21/2004US20040208773 Method for preparing a metallic article having an other additive constituent, without any melting
10/20/2004CN1539024A Method for direct metal making by microwave energy
10/19/2004CA2098695C Process for recovery of free aluminum from aluminum dross or aluminum scrap using plasma energy with oxygen second stage treatment
10/07/2004US20040194575 Ball milling graphite and hexagonal boron nitride, encapsulating and sintering; forming nanocrystalline grains embedded in amorphous diamond-like carbon matrix
10/05/2004US6800110 Au, pt, pd, ag from low grade ore; collision and frequency electrical pulse pairs are repeatedly applied to transmission line; multifrequency magnetic field; ore, carbon, and copper exposed to heat and electrodynamic fields
09/2004
09/29/2004EP1462539A1 Processes for manufacture of coated metallic particles and composite material, and installation for carrying out these processes
09/23/2004WO2004081243A1 Method for recovering platinum group element
09/16/2004WO2004070067A3 Microwave assisted continuous synthesis of manocrystalline powders and coatings using the polyol process
09/15/2004EP1456423A1 Electromagnetic pyrolysis metallurgy
09/10/2004WO2004076699A1 Device for heating a melt
08/2004
08/19/2004WO2004070067A2 Microwave assisted continuous synthesis of manocrystalline powders and coatings using the polyol process
08/19/2004US20040159559 Electrolysis of calcium, barium, lithium, cesium, or strontium chloride; reducing level of dissolved oxygen or other elements from solid metals, metal compounds and semi-metal compounds and alloys
08/19/2004CA2515042A1 Microwave assisted continuous synthesis of nanocrystalline powders and coatings using the polyol process
08/18/2004CN1162553C Method for producing silicon-manganese alloy in MF furnace utilizing silicon-manganese washery slag iron
07/2004
07/29/2004WO2004063404A1 Apparatus for rapidly making noble metal solution using plasma
07/22/2004WO2003096383A3 Cavity shapes for plasma-assisted processing
07/15/2004WO2003096382A3 Methods and apparatus for plasma processing control
07/08/2004WO2003096381A3 Plasma-assisted processing in a manufacturing line
07/08/2004WO2003096380A3 Plasma-assisted nitrogen surface-treatment
07/06/2004US6759128 High pressure phase embedded in diamond-like amorphous carbon matrix; abrasive for machining ferrous alloys; high speed cutting
06/2004
06/30/2004CN1155732C Process for preparing Al-Si alloy in DC arc furnace
06/24/2004WO2004052778A2 Plasma synthesis of metal oxide nanopowder and apparatus therefor
06/24/2004US20040118816 Plasma catalyst
06/17/2004WO2004050939A2 Plasma-assisted melting
06/17/2004WO2004050928A1 Low cost high speed titanium and its alloy production
06/10/2004US20040107896 Plasma-assisted decrystallization
06/10/2004US20040107796 Plasma-assisted melting
06/03/2004US20040104125 Intermetallic compounds
06/03/2004US20040103751 producing titanium tetrachloride as molten slag by chlorinating ore and removing impurities by distillation, introducing into plasma chamber for gas phase reduction to form titanium drops, then heating with plasma guns
05/2004
05/26/2004CN1151283C Compound Si-Ca-Mg deoxidant producing process
05/19/2004CN1150340C Compound Si-Ca-Ba-Mg deoxidant producing process
05/19/2004CN1150339C Compound Si-Ca-Ba deoxidant producing process
05/18/2004US6737017 Method for preparing metallic alloy articles without melting
05/11/2004US6733561 Production of high titania slag from ilmenite
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