Patents for C01G 49 - Compounds of iron (8,643)
08/2005
08/03/2005EP1558522A1 Method for producing metal fluoride materials
08/03/2005CN1649188A Method for preparing metal Ni, Cu, coated LiFePo4 powder
08/03/2005CN1649039A Method for producing Mn-Zn ferrite
08/03/2005CN1212968C Process for preparing crystalline selenium ferrum compound Fe (HseO3) (Se205)
08/02/2005US6923947 Method of making ferric chloride with reduced amounts of hydrochloric acid for water treatment
07/2005
07/28/2005WO2005067730A1 Method for the production of microencapsulated particles containing iron-ii-sulphate
07/27/2005EP1274655B1 Method for treating and upgrading effluents containing metallic sulphates using an ammonia addition step
07/27/2005CN1646549A Organic substance having ferrite bonded thereto and process for producing the same
07/27/2005CN1645651A Production of positive active material of lithium battery
07/27/2005CN1212640C Illumination device
07/27/2005CN1212627C Soft magnetic hexagonal ferrite compound particle and porous plate and sintering ceramics
07/26/2005CA2240805C Spinel-type lithium-manganese oxide containing heteroelements, preparation process and use thereof
07/21/2005US20050158586 Nonmagnetic powder comprising acicular iron oxide particles having an average major axis length of 20-200 mu m, a specific surface area of 30-100 m2/g and a pH of <7; resin dispersibility; antiagglomerants; phosphorus/rare earth coating; smoothness; high strength; high-density/capacity tapes
07/21/2005DE10358074A1 Verfahren zur Herstellung von Eisenpentacarbonyl A process for preparing iron pentacarbonyl
07/20/2005EP1476399A4 Organic acid-feooh (ferroxane) particles and ferroxane-derived ceramics and ceramic membranes
07/20/2005CN1643715A Positive electrode for nonaqueous electrolyte battery, process for producing the same and nonaqueous electrolyte battery
07/20/2005CN1643578A Powder for sublayer coating type magnetic recording medium
07/20/2005CN1643577A Powder for lower layer of coating type magnetic recording medium and magnetic recording medium using the same
07/20/2005CN1640820A Method for preparing high-purity Fe3O4 magnetic micro particles
07/20/2005CN1640819A Hydrophilic magnetic nano micro particle and its dispersion liquid preparing technique
07/14/2005WO2005064294A1 Use of spinel ferrites as sensitive material for bolometric infrared detection devices
07/14/2005WO2005063617A1 Bioprocesse enhanced by magnetic nanoparticles
07/14/2005US20050152828 Black composite oxide particle and method for production thereof
07/14/2005DE10358075A1 Verfahren zur Herstellung von Eisenpentacarbonyl A process for preparing iron pentacarbonyl
07/13/2005EP1551767A1 Metal chalcogenide composite nano-particles and layers therewith
07/13/2005CN1639272A Method for reducing the size of metallic compound particles
07/13/2005CN1210826C Synthesis of lithium transition metal sulphides
07/12/2005US6916872 Drug delivery; improved refractive index, transparency to light, reflection, permeability, coercivity, magnetic hystereisis, breakdown voltage, biocompatability, and wear resistance
07/12/2005US6916755 Ferroelectric composition chosen from solid solutions of mixed oxides of barium, titanium, chromium or iron, and lanthanum or samarium; low loss tunable microwave thin film device
07/12/2005US6916578 Positive electrode active material for secondary cell, method for producing the same and nonaqueous electrolyte secondary cell comprising the same
07/07/2005WO2005060610A2 Nano-sized particles, processes of making, compositions and uses thereof
07/07/2005US20050147820 Cobalt-doped alpha -iron oxide (goethite) particles synthesized by oxidation of iron (II) to iron (III) in the presence of an aqueous cobalt salt; magnetic recording media undercoatings with a multilayer structure
07/07/2005US20050147547 System and method of making ferric chloride with reduced amounts of hydrochloric acid for water treatment
07/06/2005CN1635648A Method for preparing high-density spherical ferric lithium phosphate as anode material of lithium-ion battery
07/06/2005CN1209834C Positive electrode active material for secondary cell, method for producing same and non-aqueous electrolyte secondary cell comprising same
07/05/2005US6913855 Liquid phase of slurry containing a solvent, alkali metal ions, and at least one anion selected from phosphate, hydrogen phosphate and dihydrogen phosphate; solid phase of slurry containg at least one transition metal
06/2005
06/30/2005WO2005058472A2 Systems for preparing fine particles and other substances
06/29/2005EP1547988A1 Ferrite material
06/29/2005EP1351896B1 Method for the recovery of iron from acidic, metal-contaminated water
06/29/2005CN1632969A Method for preparing high-density spherical lithium iron phosphate
06/29/2005CN1631377A Magnetic gastricantiacids intermediate and its preparing method
06/23/2005WO2005056493A1 Ferrite magnetic material and ferrite sintered magnet
06/23/2005US20050135987 Preparation of iron pentacarbonyl
06/22/2005CN1630617A Method for preparing alkali metal ferrates and novel alkali metal ferrate granules
06/22/2005CN1207736C Mn-Zn ferrite manufacturing technology
06/16/2005US20050129945 Flat-acicular iron oxide particles having an average major axis length of 20-00 nm, a short axis cross-section that has a long width and a short width, and a short axis cross-section ratio that is greater than 1.3 and uniform in the long axis direction; powder contains phosphorus and a rare earth element
06/16/2005US20050129609 Method for preparation of magnetic spinel ferrites from layered double hydroxide precursors
06/16/2005US20050129605 Reacting iron with carbon monoxide in suspension in the presence of a sulfur catalyst of a mixture of alkali metal sulfide and sulfur
06/16/2005US20050127214 Method for reducing the size of metallic compound particles
06/15/2005EP1541530A1 Method for producing iron pentacarbonyl
06/15/2005EP1541529A1 Method for producing iron pentacarbonyl
06/15/2005EP1540023A2 Binder composition and process for agglomerating particulate material
06/15/2005EP1539639A1 Process for preparing fine metal oxide particles
06/15/2005CN1627455A Ferrite, and transformer and method for driving it
06/14/2005US6906235 Iron sulfide mixtures; iron sulfide heavy metal treating agents; and methods of treating using such agents
06/14/2005US6905629 Mn-Zn ferrite, transformer magnetic core and transformer
06/14/2005CA2185437C Reduction of residual chloride in iron oxides
06/10/2005CA2488625A1 Preparation of iron pentacarbonyl
06/10/2005CA2488176A1 Preparation of iron pentacarbonyl
06/09/2005US20050124484 Raw material powder for forming material capable of conducting oxygen ion and and method for production thereof
06/09/2005US20050120918 Iron oxide powder for undercoat layer of coat-type magnetic recording medium having multilayer structure and a process of producing the same
06/08/2005EP1537050A1 Preparation of iron compounds by hydrothermal conversion
06/08/2005CN1624048A Thermally stable zinc ferrite colouring pigments, process for manufacturing them and their use
06/07/2005US6902685 Ferrite magnet powder and ferrite magnet exhibiting improved magnetic properties are provided at a reduced manufacturing cost; minimized decrease in coercivity even when sintering process is carried out at elevated temperature
06/02/2005WO2005049520A2 Method for solubilizing metal oxides by surface treatment, surface treated metal oxide solutions and method for separating metal oxides
06/02/2005DE10350278A1 Iron oxide pigment for preparing colorant that comes into contact with foods, preparing heterogeneous catalyst, preparing red iron oxide, or coloring building materials, plastics, or paper, contains calcium
06/02/2005CA2547864A1 Method for solubilizing metal oxides by surface treatment, surface treated metal oxide solutions and method for separating metal oxides
06/01/2005CN1621353A Production method of coagulant-polymeric ferric sulfate used for electric power
05/2005
05/31/2005CA2267534C Ceramic material for use in the separation of oxygen from gas mixture
05/26/2005WO2005048276A2 An mg-based ferrite, an electrophotographic development carrier containing the ferrite, and developer containing the carrier
05/26/2005WO2005046850A1 Addition of (a) blocking agent(s) in a ceramic membrane for blocking crystalline growth of grains during atmospheric sintering
05/25/2005EP1533274A1 Process for producing perovskite-type composite oxide
05/25/2005DE10349810A1 Thermostabile Zinkferrit-Farbpigmente, Verfahren zu ihrer Herstellung sowie deren Verwendung Thermostable zinc ferrite pigments, process for their preparation and their use
05/19/2005US20050106460 A metal oxide selected from titanium oxide, alumina, zinc oxide, chromium oxide, lithium oxide, nickel oxide, copper oxide and iron oxide is dispersed between particles of manganese dioxide; Improved discharging-recharging capacity
05/19/2005US20050106447 Oxygen separation membranes; stacks; electroconductivity; electrocatalysts; electrical resistance
05/19/2005US20050106098 Microparticles and methods for their production
05/19/2005US20050106088 Using lithium silicate; controlling particle sizes
05/17/2005CA2173684C Ultraviolet protective agent
05/12/2005WO2004009205A3 Nanoparticle fractionation and size determination
05/12/2005US20050100763 Magnetic recording medium
05/11/2005EP1529017A1 Iron oxide powder for undercoat layer of coat-type magnetic recording medium having multilayer structure and a process of producing the same
05/11/2005EP1529016A1 Iron oxide powder and a process of producing the same
05/11/2005CN1613917A Process for preparing yellow iron oxide pigments with CaCO3 precipitant
05/11/2005CN1613778A Method for rapid preparing ferrate solution
05/11/2005CN1613772A Preparation for nanometer metal oxide and nanometer metal oxide therefrom
05/11/2005CN1201346C Oxidate magnetic material, winding element using same and method for producing oxidate magnetic material and winding element
05/11/2005CN1200883C Method for preparing ferric polysulfate solutions
05/11/2005CN1200874C Technology and apparatus for recovering metal oxide
05/10/2005US6890875 Tunable devices incorporating BiCu3Ti3FeO12
05/06/2005WO2005040436A1 Method for processing heavy metal chloride residues
05/06/2005WO2005040287A1 Colorant for thermoplastic resin and uses thereof
05/06/2005WO2005040040A1 Method for processing iron-laden spent sulfuric acid
05/06/2005CA2539830A1 Method for processing iron-laden spent sulfuric acid
05/05/2005US20050096216 Composite metal oxide; dissolving metal in nitric acid; chemical intermediates
05/05/2005US20050095445 ZnO-type compound film having a single crystal structure contains V, Cr, Fe, Co, Ni, Rh and/or Ru, each of which is alloyed with the compound and may also contain Ti, Mn, and/or Cu; exhibits desired ferromagnetic characteristics, such as ferromagnetic transition temperature
05/04/2005CN1611449A Method for preparing Fe3 O4 superfine powder
05/04/2005CN1199866C Preparation method of magnetite ore particles
04/2005
04/28/2005WO2005037714A1 Method for treatment of sludge
04/28/2005US20050087106 Calcined with magnesium to form light colored zinc ferrite inorganic pigments; heat resistance, stability; brown, yellow; plastics, enamels, coil coatings, sand granules, lime sandstones, enamels, or ceramic glazes
04/28/2005DE202004018827U1 Reduktionsmittel für den löslichen Chromatgehalt in Zement Reducing agent for the soluble chromate in cement
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