Patents for C22B 1 - Preliminary treatment of ores or scrap (10,434)
05/2001
05/10/2001US20010001065 Method of biotreatment for solid materials in a nonstirred surface bioreactor
05/10/2001CA2389635A1 Atmospheric leach process for the recovery of nickel and cobalt from limonite and saprolite ores
05/10/2001CA2389342A1 Nickel powder desulfurisation
05/09/2001EP1097247A1 A method for isolation and production of magnesium metal, magnesium chloride, magnesite and magnesium based products
05/08/2001US6228143 Via preheating the sweep gas above auto-ignition temperature of polymers and controlling the oxygen content within oxidizer to reduce risk of explosion; cadmium, nickel, and iron remain for subsequent processing; pyrometallurgy
05/08/2001US6226891 Method and apparatus for drying iron ore pellets
05/02/2001EP1096215A2 Apparatus and method for producing metal through reduction
05/02/2001CN1293257A Reducing metal manufacturing equipment and manufacturing method of reducing metal
05/01/2001US6224820 Method of producing a reduced metal, and traveling hearth furnace for producing same
05/01/2001US6223552 Device for the controlled cooling of hot-briquetted directly reduced iron sponge
04/2001
04/25/2001EP0832303B1 Chloride assisted hydrometallurgical extraction of metal
04/25/2001EP0710297B1 Method of extracting fluorine from minerals or mineral species
04/24/2001US6221127 Receiving mineral ore at infeed end of rotary kiln; positioning burner near discharge end of rotary kiln; operating burner to achieve oxidation and induration of mineral induration of mineral ore; injecting oxidizer gas
04/24/2001US6221124 Fluidized bed treatment of EAF dust
04/18/2001CN2426795Y Sponge iron powder briquetting machine
04/17/2001CA2029494C Production of sponge metal from sponge metal fines
04/15/2001CA2322935A1 Method and apparatus for producing reduced metal
04/12/2001WO2001025496A1 Carbon-containing agglomerates
04/11/2001EP1090150A1 Mineral collector compositions of fatty hydroxamic acid in admixture with an oil and process of making same
04/10/2001US6214087 Producing solid metal product by treating carbon containing metal bearing compounds in compacts or agglomerates with coatings of treatment material before feeding compacts to furnace
04/10/2001US6213416 Improved handling of said rock via using a form which contains water, transferring said rock to a grinding apparatus wherein mixing with water swellable, water insoluble polymer takes place; improving flow of rock through grinding apparatus
04/05/2001WO2000050969A3 Mass generation of individual virtual servers, virtual web sites and virtual web objects
04/05/2001DE19946430A1 Verfahren zur Verwertung von Eisen, Zink und Blei enthaltenden Sekundärrohstoffen Process for the recovery of iron, zinc and lead-containing secondary raw materials
04/04/2001EP1088904A1 Method of treating iron, zinc and lead bearing secondary materials such as steelmaking furnace dusts
04/03/2001US6210648 Using an oxygen-deficient flotation gas.
03/2001
03/29/2001DE19946326A1 Recycling colored metals from the slag of copper winning comprises reacting the granulated slag with semi-concentrated sulfuric acid, roasting the cake produced and treating with alkali
03/28/2001EP1086256A1 Treatment of roasted metal sulphide ores and ferrites by leaching with peroxysulphuric acid
03/28/2001EP1055009A4 Methods for treating ores
03/28/2001CN1288961A Apparatus for producing red reduced iron and blank-block drying method used for same
03/28/2001CN1063800C Adhesive for metal powdered ore prilling block
03/28/2001CA2321311A1 Method of utilizing secondary raw materials containing iron, zinc and lead
03/21/2001CN1288068A Method for producing briquetted iron ore using fine iron powder extracted from steel slag
03/21/2001CN1288066A Method and equipment for prodn. of reduction iron
03/15/2001WO2001018256A1 Method and facilities for metal smelting
03/15/2001CA2383860A1 Method and facilities for metal smelting
03/14/2001CN1287181A Cylindrical pelletizer with magnetizing speed controller
03/14/2001CN1063228C Magnetism-retained reduction & roasting technology for siderite, aetite and haematite mixed iron ore
03/08/2001WO2001016384A1 Sulfatisation process for metal extraction from sulfide ores
03/08/2001WO2001016383A2 Process and solution
03/07/2001EP1080237A1 Conglomeration of minerals from a granular state with binder including waterglass, acrylic resin and vinyl alcohol
03/07/2001CN1286314A In-line denitration method for sinter process
03/07/2001CN1062913C Method of mfg. sintered ore and sintering machine therefor
03/06/2001US6197249 Apparatus for conducting gas through material to be sintered
03/01/2001WO2001014605A1 Briquette for lowering the viscosity of metallurgical slag and process for its production
02/2001
02/28/2001EP1078107A1 Ore comminution process using bed-compression method at low pressures and installation therefor
02/28/2001CN1285415A On-line desulfuration method for agglutination process
02/27/2001US6193941 Scrubbing from synthesis gas formed in partial oxidation by aqueous scrubbing solution; filtering; drying filter cake; burning a dust-free soot conditioned in pulverized fuel burner; cooling; releasing heat; separating off heavy metals
02/20/2001US6190625 Oxidation of molybdenum sulfides to molybdenum triooxide; submerged cooling tube controls temperature
02/14/2001CN1283707A Process for increasing recovery rate of silver in calcine-syanation technology for extracting gold
02/14/2001CN1283706A Process for preparing Ti-enriched material from ilmenite concentrate
02/08/2001WO2000050649A3 Method and apparatus for removing undesirable metals from iron-containing materials
02/07/2001EP1073872A1 Apparatus for conducting gas through material to be sintered
02/07/2001CN2418133Y Homogenization sintering apparatus for sintering ores
02/07/2001CN1061692C Preheating process of mixed sintered material or pellet material
02/01/2001WO2001007671A1 Process for manufacturing corrosion resistant composite metal products
02/01/2001WO2001007670A1 Method for the preparation of fine grain ores
02/01/2001CA2378956A1 Method for the preparation of fine grain ores
01/2001
01/31/2001CN1282287A Method of removing metallic coating layer from scrap metal pieces
01/24/2001EP1070761A2 Process for the valorisation of slags containing hydrocarbons and scale
01/24/2001CN1281053A Process for preparing ceramic-phase diffusion enhanced alloy and particle enhanced metal-base composition
01/23/2001CA2146732C Process for producing an iron melt
01/17/2001CN2415039Y Reducing cylinder granulator
01/17/2001CN1280202A Process of extracting organic phase to wash away chlorine radical and counter extracting organic phase to wash away salphate radical with cuprammonium solution
01/16/2001US6174346 Duplex procedure for the production of metals and metal alloys from oxidic metal ores
01/09/2001US6170669 Separation of minerals
01/09/2001CA2195922C Briquette as an additive for metallurgic purposes comprising silicon-containing residues, and process for its production
01/04/2001WO2001000890A1 Process for the extraction of copper
01/04/2001WO2001000355A1 Zinc-based metal foamed bodies
01/03/2001CN1278871A Direct-reduction method for production of iron, molten, cast iron and steel
01/02/2001US6168029 Method for separating electrically conductive mineral components from electrically non-conductive mineral components of an ore
12/2000
12/26/2000US6165248 Introducing tracer into batch of scrap material; processing batch of scrap material and tracer into homogenous mixture; assaying sample portion ofhomogenous mixture to assess amount of tracer in the sample
12/20/2000CN1277265A Parallel straight-bottom furnace using for reduction metallic oxide
12/19/2000US6162346 Process for recovery of zinc from sphalerite containing ores or concentrates
12/19/2000US6162280 Process for heat treatment of organically contaminated material
12/19/2000US6161308 Slimes treatment
12/19/2000CA2132548C Process and plant for removing lead and zinc from metallurgical-works dust
12/14/2000WO2000075384A1 Process of agglomerating particulate waste material
12/14/2000WO2000075075A1 Beneficiation of zircon
12/13/2000CN1276436A Process and equipment for preparing sintered ore
12/12/2000US6159726 Spraying coarse substrates with sulfide mineral concentrate, forming a heap, and bioxidizing the concentrate; faster rate than existing heap processes with low initial capital and operating costs
12/12/2000US6159436 Mixing hydrochloric acid; adding sodium carbonate to aqueous solution
12/06/2000CN1276019A Ferrite-and calcium-based flux, mixture for its production, and use thereof
12/06/2000CN1059240C Duplex procedure for prodn. of metals and metal alloys from oxidic metal ores
11/2000
11/30/2000DE19921485A1 Cyclone process and assembly to recover light metal swarf minimises the risks to persons associated with swarf recovery
11/29/2000EP1055009A1 Methods for treating ores
11/28/2000US6152985 Ore pelletization
11/28/2000US6152983 Method of producing reduced iron pellets formed by reducing iron oxide pellets containing dusts (including sludges) containing zn ingredients formed in iron works
11/28/2000CA2040316C Process for recovering valuable metals from a dust containing zinc
11/23/2000WO2000070104A1 Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace
11/23/2000DE10025224A1 Production of sintered iron ore comprises kneading iron ore powder, an auxiliary material and an aqueous solution to a mixture, granulating, and sintering to form a sintered ore
11/23/2000CA2373126A1 Method for reducing non-ferrous metal content in slag in the production of non-ferrous metals occurring in suspension smelting furnace
11/22/2000CN1274012A Combustion improver for promoting sinter of iron concentrate
11/21/2000US6149712 Sintered high titanium agglomerates
11/21/2000US6149710 Additive for adding one or more metals into aluminium alloys
11/15/2000EP1051527A1 High efficiency recovery process and apparatus for the pyrolysis treatment and halogenation of multi-element waste
11/15/2000EP1051242A1 Binder formulation used in forming mineral pellets
11/15/2000CN1273277A Direct reduction method and rotary kiln hearth
11/14/2000US6146444 Method for recovering metal value from concentrates of sulfide minerals
11/14/2000US6146441 Reducing iron oxides in rotary hearth furnace
11/14/2000US6145667 Mineral collector compositions and processes for making and using same
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