Patents for C01G 49 - Compounds of iron (8,643)
06/2004
06/24/2004US20040119054 Substituted barium titanate and barium strontium titanate ferroelectric compositions
06/24/2004CA2507571A1 Improved arsenic removal media
06/23/2004CN1507416A Antioxidant ferrous halide water solution and its prepn process
06/23/2004CN1155024C Manganese-zinc ferrite and method to producing the same
06/22/2004US6752932 Ferrite core and its production method
06/17/2004WO2004010515A3 Method of synthesizing electrochemically active materials from a slurry of precursors
06/17/2004US20040115345 Nanoparticle fractionation and size determination
06/17/2004US20040115124 Forming superhigh density magnetic recording substance; maghemite, hematite; adding water, surfactant and solvent to high valency metallic salt; precipitating with use of proton scavenger; crystallizing
06/16/2004EP1317319B1 Mixed conducting membranes for syngas production
06/15/2004US6749768 Hexagonal capable of sintering at temperature below silver metal or alloy melting point
06/10/2004US20040108275 Arsenic removal media
06/09/2004EP1425810A2 Improved cathode compositions for lithium ion batteries
06/09/2004EP1034136B1 Treatment of a solution containing iron salts
06/08/2004US6746767 In nonmagnetic matrix; pyrolysis, spraying, oxidation of an organometallic compound
06/08/2004US6746611 Adding a ferrous gluconate chelating agent to form iron sulphide precipitate
06/03/2004US20040105896 Metal compunds, mixed or sulphated, as phosphate binders
06/02/2004CN1501888A Iron oxides with a higher degree of refining
06/01/2004CA2155957C Ultrafine iron-containing rutile titanium oxide and process for producing the same
05/2004
05/26/2004CN1151074C Process for preparing dispersive nano Fe3O4 particles
05/26/2004CN1151073C Method for purifying ferrous salt solution
05/26/2004CN1150982C Dispersible rare earth-based compound, colloidal suspension obtained from this compound, procedures for preparation thereof, and use for manufacture of catalysts
05/25/2004US6740301 Process for producing a lithium transition metal sulphide
05/20/2004US20040097768 Iron oxides with a higher degree of refining
05/20/2004US20040096380 Preparation of iron compounds by hydrothermal conversion
05/19/2004EP1419994A1 LAYERED TITANIC ACID, LAMELLAR TITANIC ACID, LAMELLAR TITANIUM OXIDE AND METHOD FOR PRODUCING LAMELLAR TITANIC ACID
05/19/2004DE10249520A1 Dissolving iron out of an iron-based collector alloy, especially in mobilization of noble metals from spent catalysts, involves addition of ferric chloride and chlorine
05/18/2004US6738203 Optical power limiting material
05/18/2004US6737463 Barium ferrite filler; magnetic tapes
05/18/2004US6737012 Powder for magnetic ferrite, magnetic ferrite, multilayer ferrite components and production method thereof
05/18/2004US6736990 Nickel-copper-zinc based ferrite of given formula also containing bismuth, silicon, magnesium, and cobalt; good stress resistance, high strength; use in electronics as inductance component
05/13/2004WO2004040593A1 Process for preparing nanosized acicular magnetic maghemite phase iron oxide particles
05/13/2004WO2004039732A2 Process for the production of metal fluoride materials
05/13/2004WO2004039721A1 Method for producing metal fluoride materials
05/13/2004WO2002090605A8 Acid digestion process for treating alumina-bearing ores to recover metal values therefrom
05/13/2004US20040090302 Mn-Zn ferrite, transformer magnetic core and transformer
05/13/2004US20040089612 Salt formation of ammonium sulfate and precipitation of metal oxyhydroxide; basification; adding calcium hydroxide to form hydrated calcium sulfate; washing
05/13/2004CA2513386A1 Method for producing metal fluoride materials
05/13/2004CA2503883A1 Process for the production of metal fluoride materials
05/12/2004CN1495809A Mn-Zn ferrite, magnetic core for transformer, and transformer
05/12/2004CN1149593C Compounded magnetic material and inductor component
05/11/2004US6733738 Melt of aluminium or iron is reacted with chlorine gas to give gaseous metal halide, and this is subsequently reacted, in a second reaction step, with solid sodium chloride
05/06/2004DE10236663A1 Production of ferric chloride and titanium tetrachloride by chlorinating ilmenite ore in contact with petroleum coke comprises altering the electric charge of the ground ilmenite ore
05/04/2004US6730281 Methods of making transition metal compounds useful as cathode active materials
04/2004
04/29/2004US20040079444 Kneading iron sulfide containing compound with wastes; stirring; water treatment
04/28/2004CN1147883C Bonded magnet, magnet roll and method for producing ferrite powder to be used thereof
04/22/2004WO2004033732A1 Method of iron (iii) hydroxide and oxide recovery by bacterial oxidation
04/22/2004US20040075075 Crystal structure with the c-axis oriented perpendicular to the surface
04/21/2004EP1409410A1 Recovery of titanium from titanium bearing materials
04/21/2004CN1490251A Iron containing waste acid treatment and ferric oxide producing method
04/20/2004US6723470 Lithium-based active materials and preparation thereof
04/20/2004US6723415 Magnetic recording medium
04/15/2004WO2004031421A2 Binder composition and process for agglomerating particulate material
04/15/2004US20040069969 Magnetic ferrite powder, magnetic ferrite sinter, layered ferrite part, and process for producing layered ferrite part
04/15/2004CA2499146A1 Binder composition and process for agglomerating particulate material
04/14/2004EP1230163B1 Method for production of iron oxide pigments
04/14/2004CN1489635A Fluidized bed chloride method for obtaining metal oxide concentrate, expecially titanium dioxide ERE
04/14/2004CN1489553A Synthesis of lithium transition metal sulphides
04/14/2004CN1145984C Method for producing composite oxides for use as ferrites
04/13/2004US6720111 Suitable as a cathode material for a secondary battery; single phase solid solution with lithium titanate, manganate or stannate;
04/13/2004US6720094 Secondary agglomerates of magnetic metal particles for magnetic recording and process for producing the same
04/08/2004WO2004028997A1 Ferrite material
04/08/2004WO2003053647A9 A thermal process involving cold rf irradiated liquid as a core method for producing nano-size particles
04/08/2004US20040067183 Using sulfate; neutralization, leaching, electrolysis
04/07/2004EP1405358A2 Cathode material for lithium rechargeable batteries
04/06/2004US6716555 Positive active material for secondary battery, process for preparation thereof and non-aqueous secondary battery comprising same
04/06/2004US6716372 Usable as electrode active materials; for use in batteries
04/06/2004CA2324595C Oxygen scavenging compositions and methods for making same
04/06/2004CA2287380C Autothermic reactor comprising oxygen ion conducting dense ceramic membrane and process using the autothermic reactor for producing synthesis gas
04/01/2004WO2003015198A3 Cathode compositions for lithium ion batteries
04/01/2004US20040061090 Permanent magnet and method for preparation thereof
03/2004
03/31/2004CN1485277A Method for preparing iron oxide from potassium-containing rock
03/30/2004US6713037 Process for synthesizing noncrystalline lithium based mixed oxides by high energy milling
03/25/2004WO2004024629A1 Metal chalcogenide composite nano-particles and layers therewith
03/25/2004US20040057897 For use in magnetic sensing applications and spin electronics
03/24/2004CN1483663A Method for manufacturing highly-crystallized oxide powder
03/24/2004CN1143403C Positive-pole active material for lithium cell and making method thereof
03/23/2004CA2115460C Improved mixed metal oxide crystalline powders and method for the synthesis thereof
03/18/2004US20040054029 Electromagnetic wave absorbing thermally conductive composition and thermosoftening electromagnetic wave absorbing heat dissipation sheet and method of heat dissipation work
03/18/2004US20040053075 Comprises ferrite having hexagonal W/M-type magnetoplumbite structure; pulverization; heat treatment
03/18/2004US20040051075 Magnetic ferrite composition and process of production thereof
03/17/2004EP1109667A4 Oxygen scavenging compositions and methods for making same
03/17/2004CN1482629A High magnetism magnetic powder and method for making same
03/17/2004CN1482069A Process for preparing Fe hydroxide and oxide
03/17/2004CN1142104C Industrial process for preparing high-purity super-fine magnetite powder
03/16/2004US6706445 Reacting lithium source; a metal source having a metal and a titanium compound, a zirconium compound, or a mixture of titanium and zirconium compound; in the presence of reducing carbon to produce lithium mixed metal compounds
03/16/2004US6706444 Process for preparing lithium manganate in spinel structure
03/11/2004WO2004020688A1 Metal sulfide thin film and method for production thereof
03/11/2004WO2004003231A3 Remanent magnetic paricles capable of binding a target substance, their production and uses thereof
03/11/2004WO2003012800A3 High power ultrasound reactor for the production of nano-powder materials
03/09/2004US6702961 Preparation of lithium-containing materials
03/09/2004US6702870 Slurrying magnetite and silica in water and polyvinyl alcohol, then spray drying to from microstructure particles and reducing in hydrogen to form reaction products containing iron, silicon and oxygen, having remanence
03/04/2004WO2004018365A1 Iron oxide powder for undercoat layer of coat-type magnetic recording medium having multilayer structure and a process of producing the same
03/04/2004WO2004018364A1 Iron oxide powder and a process of producing the same
03/04/2004WO2004018363A1 Preparation of iron compounds by hydrothermal conversion
03/03/2004EP1394223A1 Method of making crystalline nanoparticles
03/03/2004EP1394116A1 Mn-Zn ferrite, transformer magnetic core and transformer
03/03/2004CN1479793A Mtehod for hydrolytic precitpitation of iron
02/2004
02/26/2004US20040038817 Process for producing an iron-containing sorption material
02/25/2004EP1391424A2 Preparation of lithium-containing materials
02/25/2004EP1391423A1 Method for manufacturing highly-crystallized oxide powder
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