| Patents for C22B 1 - Preliminary treatment of ores or scrap (10,434) |
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| 11/08/2000 | EP1050589A1 Direct reduction method and rotary hearth furnace therefor |
| 11/07/2000 | US6143259 Oxidising sulphide mineral in the presence of ferric ions to make the valuable metal in the sulphide mineral accessible to extraction and oxidising ferrous ions generated or derived from iron in the mined material with sulfur dioxide and oxygen |
| 11/06/2000 | CA2307422A1 Direct reduction method and rotary hearth furnace |
| 11/02/2000 | WO2000065106A1 Method of producing slurry-coated feed stock to be used for a direct reduction process |
| 11/02/2000 | WO2000064573A1 Method of making pellets from aluminosilicate raw materials |
| 11/02/2000 | EP1049190A1 Method and system for recovering valuable metal from waste storage battery |
| 11/02/2000 | EP1047797A1 Method for recycling iron bearing sludges in a steelmaking operation |
| 11/01/2000 | CN1271780A Series sinter additives |
| 10/25/2000 | EP1046721A1 Method of consolidating powdery alloying additives for steelmaking |
| 10/25/2000 | CN1271022A Homogeneous agglomerate sintering method and equipment |
| 10/24/2000 | US6136066 Method of recycling iron-bearing waste material back into a basic oxygen furnace |
| 10/19/2000 | DE19917008A1 Alloying additive moulding, for cast iron production in cupola, induction or arc furnaces, comprises silicon carbide granules and a binder containing molasses and optionally calcium hydroxide |
| 10/18/2000 | CN1270232A Technology for smelting iorn in blast furnace with pre-reducing coal-base pellets |
| 10/17/2000 | US6131836 Methods for treating ores |
| 10/17/2000 | US6131835 Methods for treating ores |
| 10/11/2000 | EP1042842A1 Recycling of galvanic cells |
| 10/11/2000 | CN1057344C Chloride assited hydrometallurgical extraction of metal |
| 10/11/2000 | CN1057341C Method for reducing iron oxides in rotary hearth furnace and method for producing metal iron |
| 10/04/2000 | EP1041163A1 Method for hot agglomeration of solid metallized iron particles to produce alloyed briquettes |
| 10/04/2000 | EP1039985A1 Method of removing a metallic coating layer from scrap metal pieces |
| 10/04/2000 | CN2399091Y Rolling sleeve protector |
| 10/04/2000 | CN1057131C Fluidized bed for treating dsut from arc furnace |
| 10/03/2000 | US6126714 Revert comprising mixture of steelmaking sludge and slag of low moisture content, given mesh size; blend prepared from hot slag having temperature below the molten liquid state and wet sludge; for recycling back to steelmaking |
| 09/28/2000 | WO2000056941A1 Treatment of iron oxide agglomerates before introduction into furnace |
| 09/27/2000 | EP1038980A2 Iron ore sintering process with reduced emissions of toxic gases by waste gas recirculation |
| 09/27/2000 | CN1267741A Normal-pressure base decomposing technology of scheelite |
| 09/27/2000 | CN1267738A Pretreatment microwave technology for coated composite platinum-palladium ore |
| 09/27/2000 | CN1056886C Method of processing finely divided material incorporating metal based constituents |
| 09/21/2000 | WO2000055379A1 Device for producing hot-briquetted metallic sponge, especially hot-briquetted sponge iron |
| 09/21/2000 | CA2365982A1 Device for producing hot-briquetted metallic sponge, especially hot-briquetted sponge iron |
| 09/20/2000 | CN1266816A Process for desiliconizing diasporite type bauxite |
| 09/19/2000 | US6120577 Separating and recovering iron, zinc and lead from steel plant waste oxides, comprising mixing waste oxides and sludge which contains iron zinc and lead, adding coke particles, briquetting the mixture, firing to reduce iron oxide to iron |
| 09/14/2000 | WO2000053818A1 Combined separation device of rotary drum cooler and stationary magnetic separator |
| 09/14/2000 | DE19911168A1 Verfahren und Anordnung zur Behandlung von chloridhaltigem Staub Method and apparatus for treatment of chloride-containing dust |
| 09/13/2000 | EP1035224A1 Process and installation for treating chloride containing dust from sinter band exhaust in connection with blast furnace top gas treatment |
| 09/13/2000 | EP1034313A1 Device and process system for preheating steel scrap |
| 09/06/2000 | EP0832302B1 Chloride assisted hydrometallurgical extraction of nickel and cobalt |
| 09/06/2000 | CN2394920Y Pilleting device for sintered mixed material |
| 09/05/2000 | US6113844 Water soluble treatment polymer is formed by polymerization of water soluble ethylenically unsaturated monomer blend containing at least 50% by weight of anionic monomer. |
| 08/31/2000 | WO2000050969A2 Mass generation of individual virtual servers, virtual web sites and virtual web objects |
| 08/31/2000 | WO2000050649A2 Method and apparatus for removing undesirable metals from iron-containing materials |
| 08/30/2000 | CN1055971C Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulfide minerals |
| 08/30/2000 | CN1055878C Method and device for treating composite elements |
| 08/29/2000 | US6110307 Blowing in inert gas before compacting means comes into contact with upper face of container to be compacted to drive out air, sweeping particle-laden gaseous effluents from start of compacting and throughout duration of process |
| 08/23/2000 | EP1029092A1 Method for producing directly-reduced iron, liquid pig iron and steel |
| 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 | CN1055730C Reduced ion mfg. method and apparatus |
| 08/23/2000 | CN1055729C Method and apparatus for manufacturing reduced iron |
| 08/22/2000 | US6107065 Forming a concentrate of sulfide minerals from ore, coating onto coarse substrates, forming a heap with bacteria, and biooxidizing the mineral on the surface at a rate at least two times greater than average |
| 08/22/2000 | US6106765 Purification process for chromium |
| 08/17/2000 | WO2000047783A1 Aluminium shapes as deoxidants for steelmaking |
| 08/16/2000 | CN1263565A Method for operating sintering plant and sintering plant |
| 08/16/2000 | CN1263250A Cooling and heat dissipation rate adjustable catalytic boiling-bed roaster |
| 08/15/2000 | CA2174563C Recovery of steel plant revert materials through cementitious agglomeration |
| 08/10/2000 | WO2000045960A1 Method for processing a rock mass containing minerals |
| 08/09/2000 | EP0754247B1 Method and installation for the heat treatment of materials |
| 08/09/2000 | CN1055320C Production method of direct reduction shaft and blast furnace cold-bonded pellet |
| 08/09/2000 | CN1055319C Iron ore pellet compound additive and its using method |
| 08/09/2000 | CN1055318C Method for producing sintered pelletized minerals |
| 08/08/2000 | US6099615 Method for improved percolation through ore heaps by agglomerating ore with a surfactant and polymer mixture |
| 08/08/2000 | CA2054522C Ore feed heating |
| 08/01/2000 | US6096112 High carbon content briquettes |
| 07/27/2000 | DE19901574A1 Low cement content silicon carbide moulding, used as a furnace alloying additive in cast iron foundries, contains silicon carbide granules of particle size distribution providing a reduced compacted particle interspace size |
| 07/26/2000 | EP1022348A1 Method for manufacturing reduced iron pellets including controlled water cooling of the same |
| 07/26/2000 | EP1021573A1 Mineral pelletisation |
| 07/26/2000 | EP0958385A4 Method of agglomerating oil-containing steel mill waste |
| 07/25/2000 | US6092665 Beneficiation of saline minerals |
| 07/20/2000 | WO2000042229A2 Processing of uranium materials by fluorination and dissociation of uranium hexafluoride in plasma separator |
| 07/20/2000 | CA2359963A1 Improvements in and relating to processing materials |
| 07/19/2000 | EP1020535A1 Method for manufacturing reduced iron agglomerates and rotary hearth apparatus therefor |
| 07/19/2000 | EP1019184A1 A process and apparatus for treating particulate matter |
| 07/19/2000 | EP0909336B1 Process for recovery of zinc from sphalerite containing ores or concentrates |
| 07/19/2000 | CN2388211Y Sintered mixed material forced convection preheating device |
| 07/18/2000 | US6090353 Method of removing impurities from mineral concentrates |
| 07/18/2000 | US6090293 Flocculating process; organic flocculent based on a copolymer derived from slightly anionic acrylic acid |
| 07/11/2000 | US6086847 Process for treating iron-containing sulfide rocks and ores |
| 07/06/2000 | WO2000039351A1 Eaf dust treatment by pelletising and fluidised-bed reduction |
| 07/05/2000 | EP1015210A1 Method for processing material comprising aluminium and plastic |
| 07/04/2000 | US6083730 Biooxidizing metal sulfide particles from sulfide ore using a static apparatus to liberate metal; obtaining a precipitate of metal sulfide particles, coating the surface of coarse substrates, biooxidizing metal sulfide particles |
| 07/04/2000 | US6083295 Method of processing finely divided material incorporating metal based constituents |
| 07/04/2000 | CA2265873C Particle agglomeration by metal sulphate hydration |
| 06/29/2000 | DE19852077C1 Precious metal recovery process, especially for gold recovery from ores, sands or rocks, comprises low temperature smelting of a mixture of ground ore and alkali and then hydrothermally treatment |
| 06/28/2000 | CN1053928C Device for on-line monitoring water content of sintered mixture, and its use method |
| 06/22/2000 | WO2000036165A2 Heavy caesium salt containing liquids for use in separation processes |
| 06/22/2000 | WO2000035556A1 Methods and apparatus for an improved pressure filter |
| 06/21/2000 | EP1010767A1 Preparation of metal feedstock from wasted metal products |
| 06/21/2000 | EP0915994B1 "waelz" method for processing of zinc containing materials in pelletized form |
| 06/20/2000 | CA2198123C Sulphate agglomeration |
| 06/14/2000 | EP1007748A1 Method and equipment for processing iron- or oil-containing metallurgical waste |
| 06/14/2000 | EP1007746A1 Method for operating a sintering plant, and sintering plant |
| 06/13/2000 | US6074533 Tapering the reaction zone of the reaction chamber |
| 06/13/2000 | US6074456 Molding to form a strip structure of sponge iron, smashing the strip structure, cooling the fragments, passing through a rotary drum to form fine-grained fines of the briquets and fragments |
| 06/06/2000 | US6071325 By mixing with water particulate material such as iron ore, a binding amount of a water soluble polymer, and a binder enhancing amount of caustic to produce a mixture, and forming into agglomerates; efficiency, dry strength of agglomerates |
| 05/31/2000 | EP1004681A1 Pellets incorporated with carbonaceous material and method of producing reduced iron |
| 05/31/2000 | EP0630352B1 Preparation of granular alkali metal borate compositions |
| 05/24/2000 | EP1002881A4 Ferrite- and calcium-based flux, mixture for its production, and use thereof |
| 05/24/2000 | EP1002881A1 Ferrite- and calcium-based flux, mixture for its production, and use thereof |
| 05/24/2000 | CN1254022A Pretreatment method for extracting vanadium pentoxide from vanadium-contained ore |
| 05/18/2000 | WO2000028094A1 Method for the heat treatment of residues containing heavy metals |