Patents for C22B 1 - Preliminary treatment of ores or scrap (10,434)
05/2002
05/29/2002CN1085737C Process for preparing Ti-enriched material from ilmenite concentrate
05/29/2002CN1085735C Zinc oxide as gray feed and its preparing process
05/28/2002US6395052 Method for producing directly-reduced iron, liquid pig iron and steel
05/23/2002WO2002040724A1 Method for reducing build-up on a roasting furnace grate
05/23/2002WO2002040723A1 Method for the stabilization of a fluidized bed in a roasting furnace
05/23/2002DE10058789A1 Process for working-up oiled-up debris, scale and other similar material comprises feeding a scrubbing liquor with a flow of the debris through a scrubbing device, desiccating, drying and passing the scrubbed debris through a drying region
05/23/2002CA2427393A1 Method for reducing build-up on a roasting furnace grate
05/22/2002CN1350596A Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace
05/21/2002US6393044 High efficiency induction melting system
05/21/2002US6391088 Heat treatment residues, oils and iron oxide in furnace
05/21/2002US6391086 Self reducing agglomerate for use in refining, forming molten iron from iron oxide, reductant, slags from steel production and fluxing
05/21/2002US6391085 Metal feedstock from wasted metal products
05/21/2002US6390395 Using cesium or rubidium salt
05/15/2002EP1204773A1 Method for the preparation of fine grain ores
05/15/2002CN1348998A Metal-base powder lumping method
05/15/2002CN1348997A Roasting decomposition process of mengite-RE concentrate and mengite-mixed bastnaesite RE concentrate
05/14/2002US6387155 Method for recovering metal values from concentrates of sulfide minerals
05/10/2002WO2002036836A1 Metal oxide-containing green pellet for reducing furnace, method for production thereof, method for reduction thereof, and reduction facilities
05/10/2002WO2002004919A3 Method and apparatus for the assay of precious metals
05/08/2002EP0953060B1 Particle agglomeration by metal sulphate hydration
05/08/2002EP0862657B1 Duplex procedure for the production of metals and metal alloys from oxidic metal ores
05/08/2002DE10053492A1 Anlage und Verfahren zur Aufbereitung von Shredder-Rückständen und Verwendung einer erzeugten Sand-Fraktion System and method for sorting shredder residues and generated using a sand fraction
05/08/2002DE10053488A1 Processing shredder residues of metal-containing waste comprises producing raw granulate fraction by separating ferromagnetic fraction, non-ferrous metal-containing fraction, granulate fraction and sand fraction
05/08/2002DE10053487A1 Method for processing shredder residues of metal-containing waste comprises separating the shredder residue into a shredder light fraction and a non-ferromagnetic fraction
05/08/2002CN1348505A Sulphidisation of sulphide ores for hydrometallurgical extraction of copper and other metals
05/07/2002US6384126 Pellet comprised of mineral concentrate or fines and binder formulation comprised of colloidal silica and water-soluble polyvinyl alcohol, having low temperature strength for transporting and high temperature strength for iron-making
05/07/2002US6383460 Subjecting the concentrate containing nickel and cobalt hydroxide to a leaching stage with an ammonium solution to produce a leach solution containing nickel or cobalt values and a residue, and controlling the concentration of metals
05/07/2002US6383252 Method for the heat treatment of residues containing heavy metals
05/07/2002CA2176147C Biooxidation of refractory sulfide ores
05/02/2002WO2002034402A1 Unit and method for processing of shredder residues and use of a sand fraction produced thus
05/02/2002WO2002034401A1 Unit and method for the treatment of shredder residues
05/02/2002WO2002034400A1 Unit and method for the treatment of shredder residues and use of granulate fractions thus produced
05/02/2002WO2001094650A3 Process for the recovery of natural nanoclusters of metals and other elements and the nanoclusters isolated thereby
05/01/2002CN1083897C Ferrite- and calcium -based flux, mixture for its production, and use thereof
04/2002
04/30/2002US6379421 Demetallization lead, zinc and cadmium from iron materials
04/25/2002WO2002033136A1 Agglomerated elements and method for treating metallurgical dust
04/25/2002WO2002033134A2 Basic treatment of ores for the recovery of metals therefrom
04/25/2002US20020046628 Pellets incorporated with carbonaceous material and method of producing reduced iron
04/24/2002EP1199373A1 Agglomerates of and process for the treatment of metallurgical dust
04/24/2002EP0904419B1 Fluidized bed roasting process
04/23/2002CA2163058C Improvements to precious metals recovery from ores
04/23/2002CA2141406C Treatment of titaniferous materials
04/18/2002WO2001075184A3 Heap leaching of nickel containing ore with sulfuric acid
04/17/2002CN1344927A Measuring and controlling method of moisture in sintered mixture material
04/16/2002US6372016 Stably forming high-quality iron by reduction of iron oxide with coal; noncorrosive
04/16/2002US6372011 Reprocessing in the presence of pig iron; low energy expenditure and capital investment
04/11/2002WO2002029123A1 Brittle formed product and iron-based power material and method for manufacturing these materials
04/11/2002WO2002028514A1 Method for inhibiting dioxin formation in fumes produced during iron ore sintering
04/11/2002US20020041840 Atmospheric leach process for the recovery of nickel and cobalt from limonite and saprolite ores
04/10/2002EP1195565A1 Device and method for sealing pressure air blowing hood
04/10/2002EP1194602A1 Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace
04/09/2002US6368379 Hearth reducing furnace
04/04/2002US20020039974 Flotation agents in, minerals beneficiation, as well as in lubricants and drilling muds
04/04/2002DE10049759C1 Poröse Bauteiele sowie ein Verfahren zu deren Herstellung Porous Bauteiele and a method for their preparation
04/03/2002EP1193009A2 Porous components and process for their preparation
04/03/2002CN1343261A Improvements in and relating to processing materials
04/03/2002CN1342778A Adhesive for nodulizing in non-ferrous metals and its preparing process
04/03/2002CN1082031C Method of biotreatment for solid materials in nonstirred surface bioreactor
03/2002
03/28/2002WO2002024966A1 Recovery of nickel and cobalt values from a sulfidic flotation concentrate by chloride assisted oxidative pressure leaching in sulfuric acid
03/27/2002EP1189715A1 Zinc-based metal foamed bodies
03/27/2002CN1341759A Process for extracting vanadium
03/27/2002CN1081785C Scrap conveyor
03/26/2002CA2356050C Process for the solvent extraction of nickel and cobalt values in the presence of magnesium ions from a solution
03/26/2002CA2356048C Process for the recovery of nickel and/or cobalt from a concentrate
03/21/2002WO2002023651A1 A method for recycling spent lithium metal polymer rechargeable batteries and related materials
03/21/2002US20020035188 Surface treatment of iron ores by chelation
03/21/2002DE10038566A1 Verwertung von ölbelastetem Walzenzunder in Schachtöfen und Konvertern Recovery of oil-contaminated mill scale in blast furnaces and converters
03/19/2002US6357099 Preparation of metal feedstock from wasted metal products
03/14/2002WO2002020854A2 Jetting system and method for disagglomerating particulate material
03/14/2002WO2002020853A1 Process to provide concurrently both energy and heat insulation for the liquid metal bath
03/14/2002US20020030309 Apparatus for producing reduced iron and compact drying method applied to the apparatus
03/14/2002DE10042112A1 Verfahren zur Behandlung wertstoffhaltigen Staubes A method for treating dust containing recyclable materials
03/13/2002CA2319285A1 A method for neutralizing and recycling spent lithium metal polymer rechargeable batteries
03/12/2002US6355088 Method for direct reduction and upgrading of fine-grained refractory and earthy iron ores and slags
03/07/2002US20020028860 Method of modifying rheology of slurries in mineral processing
03/07/2002US20020027304 Agglomeration of alumina and binder therefor
03/06/2002EP1184469A2 Process for the treatment of metal values containing dust from steelmaking
03/06/2002EP1021573B1 Mineral pelletisation
03/05/2002US6352573 Method for the separation and recycling of hot fines in hot briquetting of reduced iron
02/2002
02/28/2002WO2002016659A1 Ferrous metal particle briquettes and method of making and using them
02/26/2002US6350295 Method for densifying aluminum and iron briquettes and adding to steel
02/26/2002US6349833 Method of feeding sintering material by use of magnetic forces
02/21/2002WO2002014564A1 Briquette as material for steel making and method for production thereof
02/20/2002CN1336446A Pretreatment method of refractory aurin ore containing As and other elements
02/14/2002WO2002012574A1 Dust control
02/14/2002WO2002012573A2 Use of oil-charged mill-scale in shaft furnaces and converters after chemical binding and pelleting thereof
02/13/2002CN2476560Y Honeycomb coking block mass
02/07/2002WO2002010068A1 Production of metal oxides
02/06/2002CN1334347A Process for briquetting alloy powder
02/01/2002CA2354376A1 Material treatment method and apparatus
01/2002
01/31/2002WO2002008477A1 Method for recovering nickel and cobalt from laterite ores
01/31/2002WO2002008473A2 Agglomerating particulate ore materials using polymeric binders
01/31/2002US20020012621 Process for the recovery of nickel and / or cobalt from a concentrate
01/31/2002DE19782202C2 Direktreduktion von Metalloxid-Agglomeraten Direct reduction of metal oxide agglomerates
01/31/2002DE10034887A1 Regelvorrichtung Control device
01/31/2002CA2416662A1 Agglomerating particulate ore materials using polymeric binders
01/30/2002CN2474543Y Raw material preforming device for induction smelting
01/30/2002CN1333382A Method for producing active mineral liquid from granite
01/29/2002US6342190 Grinding crushed ore chunks in dry environment to size that can be moved by blowing, mixing with air, flash roasting mixture to heat ore, quenching in quenching chamber water bath to cool ore, causing ore to crack and break down
01/29/2002US6342089 Reduced iron pellets from iron oxide
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