| Patents for C22B 5 - General processes of reducing to metals (5,378) |
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| 04/04/2001 | EP1088904A1 Method of treating iron, zinc and lead bearing secondary materials such as steelmaking furnace dusts |
| 04/04/2001 | EP1088113A1 Removal of oxygen from metal oxides and solid solutions by electrolysis in a fused salt |
| 04/04/2001 | EP0854765B1 Process for the production of ultrafine particles |
| 04/03/2001 | US6210627 Arrangement for the dosed introduction of fine-particulate material into a reactor vessel |
| 03/29/2001 | WO2001021845A1 Solid state reduction of oxides |
| 03/28/2001 | EP1087022A1 A direct smelting process |
| 03/28/2001 | CA2321311A1 Method of utilizing secondary raw materials containing iron, zinc and lead |
| 03/21/2001 | CN1288066A Method and equipment for prodn. of reduction iron |
| 03/21/2001 | CN1288065A Pressure control |
| 03/20/2001 | US6203768 Process for the production of ultrafine particles |
| 03/15/2001 | WO2001018256A1 Method and facilities for metal smelting |
| 03/15/2001 | CA2383860A1 Method and facilities for metal smelting |
| 03/07/2001 | EP1080242A1 Tantalum-silicon alloys and products containing the same and processes of making the same |
| 03/07/2001 | EP1079950A1 Sinter-active metal and alloy powders for powder metallurgy applications and methods for their production and their use |
| 03/06/2001 | US6197087 Pyrolysis of halogenated organic hazardous wastes with direct reduction of iron oxides |
| 02/28/2001 | EP0865509B1 Production of metal such as aluminium, magnesium, silicon and the like from metal oxide compounds |
| 02/22/2001 | WO2001012867A1 Apparatus and method of producing tantalum by continuous process |
| 02/15/2001 | DE19936935A1 Process for increasing the performance and reducing the amount of fuel used during the production of pig iron in blast furnaces comprises removing gases from the mold plane in the lower part of the furnace, treating and recycling |
| 02/14/2001 | EP1076102A2 Pressure control in direct melting process |
| 02/14/2001 | CN1283706A Process for preparing Ti-enriched material from ilmenite concentrate |
| 02/08/2001 | WO2001009400A1 Method for producing lithium and device therefor |
| 02/08/2001 | WO2000050649A3 Method and apparatus for removing undesirable metals from iron-containing materials |
| 02/07/2001 | CN1061688C Method and apparatus for adding metal carrier to melting gasification zone |
| 02/06/2001 | US6183534 Fluidized bed reactor |
| 02/01/2001 | WO2001007671A1 Process for manufacturing corrosion resistant composite metal products |
| 01/31/2001 | EP1072690A1 Refining of precious-metal containing concentrates by chlorination |
| 01/31/2001 | CN1281905A Production method of high-grade silicon-calcium alloy and its ore-smelting electric furnace |
| 01/30/2001 | US6179897 Method for the generation of variable density metal vapors which bypasses the liquidus phase |
| 01/16/2001 | US6174346 Duplex procedure for the production of metals and metal alloys from oxidic metal ores |
| 01/09/2001 | US6171363 Method for producing tantallum/niobium metal powders by the reduction of their oxides with gaseous magnesium |
| 01/03/2001 | CN1278869A Direct smelting process for producing metals from metal oxides |
| 12/28/2000 | WO2000079014A1 Method for recovering metallic chromium from slag containing chromium oxide |
| 12/28/2000 | WO2000079013A1 2-stage fluidized bed type fine iron ore reducing apparatus, and reducing method using the apparatus |
| 12/27/2000 | EP1063200A1 Process for the direct production of germanium tetrachloride from hydrated germanate-containing solids using gaseous hydrogen chloride |
| 12/27/2000 | CN1059930C Method for treating particle material using fluidized bed, and equipment therefor |
| 12/26/2000 | US6165412 One step forming a potassium-doped tungsten powder, pressing to form a compact, sintering |
| 12/26/2000 | US6165249 Iron carbide process |
| 12/21/2000 | WO2000076698A1 Metallic articles formed by reduction of nonmetallic articles and method of producing metallic articles |
| 12/20/2000 | EP1060278A1 Method for production of aluminium |
| 12/20/2000 | CN1277265A Parallel straight-bottom furnace using for reduction metallic oxide |
| 12/19/2000 | US6162277 Nickel fine powder and method for preparing the same |
| 12/14/2000 | WO2000075385A1 Method for conditioning slag with the addition of metallurgical residual materials and an installation for the same |
| 12/14/2000 | WO2000047784A3 Method for producing metallic silicon |
| 12/13/2000 | EP1059134A1 Process for the production of metallic powders, powders thus prepared and compacts including these powders |
| 12/13/2000 | CN1059472C Method and apparatus for suspension smelting |
| 12/12/2000 | US6159268 Process for pyrometallurgical processing in a furnace chamber, of metal-containing waste |
| 12/07/2000 | WO2000073519A1 Equipment for the even feed of pulverous material to a concentrate burner of suspension smelting furnace |
| 12/07/2000 | CA2374888A1 Equipment for the even feed of pulverous material to a concentrate burner of suspension smelting furnace |
| 12/06/2000 | EP0815265B1 Process for reducing ore fines and arrangement for carrying out the process |
| 12/06/2000 | CN1059240C Duplex procedure for prodn. of metals and metal alloys from oxidic metal ores |
| 12/05/2000 | US6156094 Reacting alkaline hydroxide, hydrazine or hydrate with metallic salt in alcoholic solvent; reduction, precipitation |
| 12/05/2000 | US6155965 Smelting fly ash to a leaching resistant slag by oxidizing with added a carbon or hydrocarbonaceous substance which supplies additional energy, also reducing zinc and lead contend |
| 11/28/2000 | US6152984 Integrated direct reduction iron system |
| 11/28/2000 | US6152982 Reduction of metal oxides through mechanochemical processing |
| 11/23/2000 | WO2000070103A1 Method and equipment for smelting non-ferrous metal sulphides in a suspension smelting furnace in order to produce matte of a high non-ferrous metal content and disposable slag |
| 11/23/2000 | WO2000070101A1 Method and installation with smelting and reduction cyclone and a coupled lower furnace for utilising residual material containing iron and heavy metals and optionally iron ore |
| 11/23/2000 | CA2372809A1 Method and installation with smelting and reduction cyclone and a coupled lower furnace for utilising residual material containing iron and heavy metals and optionally iron ore |
| 11/21/2000 | US6149859 Gasification plant for direct reduction reactors |
| 11/16/2000 | WO2000068440A1 Method and device for induction-heating and melting metal oxides-containing powder and granular material |
| 11/16/2000 | WO2000067936A1 Metal powders produced by the reduction of the oxides with gaseous magnesium |
| 11/15/2000 | CN1273277A Direct reduction method and rotary kiln hearth |
| 11/14/2000 | US6146441 Reducing iron oxides in rotary hearth furnace |
| 11/14/2000 | US6146437 Metal containing compound reduction and melting process |
| 11/09/2000 | WO2000066796A1 Method for treating metal-containing waste by pyrometallurgy |
| 11/08/2000 | EP1050589A1 Direct reduction method and rotary hearth furnace therefor |
| 11/07/2000 | US6143054 Molten bath-based direct smelting process for producing metals from metal oxides(including partially reduced metal oxides), process includes causing upward movement of splashes, droplets, streams of molten material from metal layer of bath |
| 11/06/2000 | CA2307422A1 Direct reduction method and rotary hearth furnace |
| 11/02/2000 | WO2000065114A1 FLUIDIZED BED REDUCTION OF LATERITE FINES WITH REDUCING GASES GENERATED $i(IN SITU) |
| 10/25/2000 | EP0979208A4 Composition and method for reducing copper oxide to metallic copper |
| 10/24/2000 | US6136065 In a wide range of particle size, the reducing agent being hydrogen placed in a fluidized bed gutter with a plurality of sequentially arranged chambers |
| 10/24/2000 | US6136062 Niobium powder and a process for the production of niobium and/or tantalum powders |
| 10/17/2000 | US6132489 Reducing gas flows through descending moving bed of coarser particles and forms ascending fluidized bed of fines; particles charged to the reactor are fed into lower portion of fluidized bed, reduced fines withdrawn in upper portion |
| 10/11/2000 | EP1042514A1 Method for reforming reducing gas in a fluidized bed process for reduction of ore |
| 10/11/2000 | CN1057341C Method for reducing iron oxides in rotary hearth furnace and method for producing metal iron |
| 10/04/2000 | CN1057131C Fluidized bed for treating dsut from arc furnace |
| 09/27/2000 | CN1056886C Method of processing finely divided material incorporating metal based constituents |
| 09/20/2000 | CN1267339A Titanium alloy based dispersion-strengthened composites |
| 09/20/2000 | CN1056652C Circulating fludized bed furnace for prereduction of fine iron ore |
| 09/13/2000 | EP1034311A1 Direct smelting process for producing metals from metal oxides |
| 09/12/2000 | US6117387 Providing feed comprising iron oxide and carbonaceous material into oxidizing zone of furnace, providing first and second oxidants and first and second fuels into the oxidizing zone, reacting iron oxide with reducing material, recovering iron |
| 09/08/2000 | WO2000052215A1 Endothermic heat treatment of solids loaded on trolleys moving in a kiln |
| 08/31/2000 | WO2000050969A2 Mass generation of individual virtual servers, virtual web sites and virtual web objects |
| 08/31/2000 | WO2000050652A1 Treatment of metal sulphide concentrates by roasting and arc furnace smelt reduction |
| 08/31/2000 | WO2000050649A2 Method and apparatus for removing undesirable metals from iron-containing materials |
| 08/30/2000 | EP0910295A4 Cryoplasty device and method |
| 08/23/2000 | EP1029091A1 Method and unit for heat-treating fine-grained materials in a coarse-grained fluidized bed |
| 08/23/2000 | EP0652977B1 Treatment of titaniferous materials |
| 08/23/2000 | CN1055729C Method and apparatus for manufacturing reduced iron |
| 08/22/2000 | US6106765 Purification process for chromium |
| 08/17/2000 | WO2000047784A2 Method for producing metallic silicon |
| 08/09/2000 | EP1026268A1 Nickel fine powder and method for preparing the same |
| 08/02/2000 | CN1055133C Comprehensive utilization method of multiple metal intergrowing dolomite |
| 08/01/2000 | US6096112 High carbon content briquettes |
| 08/01/2000 | US6096109 Chemical component recovery from ligated-metals |
| 07/26/2000 | EP1022345A1 Production method of iron carbide |
| 07/26/2000 | CN1261106A Method and apparatus for extracting metals from ores |
| 07/18/2000 | US6090179 Decomposing a halogen-containing metal compound to a metal halide and reducing agent by heat treatment in a stationary, nonoxidizing atmosphere, reducing the metal halide using the reducing agent and collecting a high purity metal powder |
| 07/13/2000 | WO2000040767A1 Carbothermic aluminium production using scrap aluminium as coolant |
| 07/12/2000 | EP1017619A1 Oxygen-fuel boost reformer process and apparatus |
| 07/12/2000 | EP0731851B1 Method of processing solid residues from waste-incineration plants and a device for carrying out the method |