| Patents for C01G 49 - Compounds of iron (8,643) |
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| 10/24/2002 | US20020155058 Iron sulfides, processes for producing the same, iron sulfide mixture, heavy metal treating agent, and method of treating with the agent |
| 10/24/2002 | US20020155044 Mxing an iron salt and an oxidizing agent in a mixing chamber; delivering portion of the mixture to a reaction chamber; continuously generating ferrate in the reaction chamber; delivering at least a portion of the ferrate to a site of use |
| 10/24/2002 | US20020153329 Process for the conditioning of polluted water |
| 10/24/2002 | US20020153065 Spindle-shaped goethite particles and process for making spindle-shaped goethite particles |
| 10/23/2002 | EP1251575A1 Positive electrode active material for secondary cell, method for producing the same and nonaqueous electrolyte secondary cell comprising the same |
| 10/23/2002 | CN1376211A Stable ferric arsenate precipitation from acid copper solutions whilst minimising copper losses |
| 10/22/2002 | US6468483 Process for treating alumina-bearing ores to recover metal values therefrom |
| 10/22/2002 | US6468446 Generation of metal-carbonyl standards for the calibration of spectroscopic systems |
| 10/22/2002 | US6468441 Mn-Zn ferrite and production process thereof |
| 10/17/2002 | US20020148995 Oxide magnetic material and coil part using the same |
| 10/17/2002 | DE10117996A1 New method for refining iron oxide, e.g. used in catalysts for the dehydration of ethylbenzene to styrene, comprises high temperature calcination |
| 10/16/2002 | EP1249847A2 Soft-magnetic hexagonal ferrite composite particles, and green sheet using the same and soft-magnetic hexagonal ferrite sintered ceramics. |
| 10/16/2002 | CN1374255A Method of preparing high-purity iron oxide red for soft magnetic material with magnetite |
| 10/16/2002 | CN1374254A Production process of high-purity ferric oxide for ferrite |
| 10/15/2002 | US6465131 Lithium secondary cell with a stannous electrode material |
| 10/09/2002 | EP1248309A1 Lithium iron thiophosphate compound, process for producing the compound, and lithium battery using the compound |
| 10/09/2002 | CN1373123A Process for gas phase ammonoxidation of alkane |
| 10/08/2002 | US6461531 Miixng powders; electrical resistance |
| 10/03/2002 | US20020142219 Lithium iron thiophosphate compound, process for producing the compound, and lithium battery using the compound |
| 10/02/2002 | EP1244825A1 Regenerating spent pickling liquor |
| 10/02/2002 | EP1244600A1 Method of preparing metal containing compounds using hydrodynamic cavitation |
| 10/02/2002 | DE10115418A1 Filtration unit for removing pollutants from fluids, especially water, comprises agglomerates of finely divided iron oxide and oxyhydroxide |
| 10/02/2002 | DE10115417A1 Filtration unit for removing pollutants from fluids, especially water, comprises agglomerates of finely divided iron oxide and oxyhydroxide |
| 10/02/2002 | DE10115415A1 Filtration unit for removing pollutants from fluids, especially water, comprises agglomerates of finely divided iron oxide and oxyhydroxide |
| 10/02/2002 | DE10115414A1 Filtration unit for removing pollutants from fluids, especially water, comprises agglomerates of finely divided iron oxide and oxyhydroxide |
| 10/01/2002 | US6458488 Positive electrode activator for lithium secondary battery and lithium secondary battery |
| 10/01/2002 | US6458286 Manganese-zinc (Mn-Zn) based ferrite |
| 09/26/2002 | WO2002075755A1 Electromagnetic wave absorbing thermally conductive composition and thermosoftening electromagnetic wave absorbing heat dissipation sheet and method of heat dissipation work |
| 09/26/2002 | WO2002074883A1 Desulfurizing agent, method for production thereof, and method of use thereof |
| 09/26/2002 | WO2002002833B1 Preparation of pure ferric chloride from hydrochloric acid solutions by solvent extraction |
| 09/26/2002 | DE10114177A1 Verfahren zur Aufbereitung schadstoffhaltiger Wässer Process for the treatment of hazardous waters |
| 09/25/2002 | EP1243561A2 Method for treating polluted water using an iron(III) catalyst |
| 09/25/2002 | EP1242173A1 Aqueous colloidal dispersion based on at least a metal compound and a complexing agent, preparation method and use |
| 09/25/2002 | CN1371104A Magnetic oxide material and coil element made with the material |
| 09/23/2002 | CA2377379A1 Process for the conditioning of polluted water |
| 09/19/2002 | WO2002026633A8 Adsorption container and iron oxide adsorber |
| 09/19/2002 | US20020130296 Heating an alkaline component and an iron(II) component in the form of aqueous solution; treating the suspension with an oxidizing agent; filtering the suspension, and washing, drying and grinding residue |
| 09/18/2002 | EP1131381B1 Process for hydrophobicizing particles, and their use in polymer dispersions |
| 09/18/2002 | EP0958248B1 Process for the preparation of water purification solutions containing ferric iron and the use of the product as of obtained |
| 09/18/2002 | CN1091176C Double-doped lithium niobate crystsal |
| 09/18/2002 | CN1091000C Process for producing partculte iron-antimony contg. oxide compsn. having high compressive strength |
| 09/12/2002 | US20020127176 With an alpha -FeOOH crystal structure from iron chloride (FeCl2) and aluminum chloride; use as starting material for iron oxide yellow and for use as a yellow pigment |
| 09/11/2002 | EP1237829A1 Methods of making mesoporous metal oxide compositions and solid oxide fuel cells |
| 09/11/2002 | CN1090589C Macropore amplifying spherical silica-gel and its manufacturing method |
| 09/10/2002 | US6447738 Leaching with sulfuric acid, reducing any ferric values to ferrous, crystallizing formed double salts, washing, hydrolyzing, washing, drying, calcining |
| 09/06/2002 | WO2002068331A1 Process for treating red mud to recover metal values therefrom |
| 09/05/2002 | US20020122984 Method for producing cathode active material and method for manufacturing nonaqueous electrolyte battery |
| 09/05/2002 | US20020121482 Methods of synthesizing an oxidant and applications thereof |
| 09/05/2002 | US20020121227 Titanium dioxide powder which contains iron oxide |
| 09/04/2002 | CN1367137A Method for purifying ferrous salt solution |
| 09/03/2002 | US6444453 Methods and apparatus for producing mixed oxide nanoparticulates are disclosed. selected thermophilic bacteria cultured with suitable reducible metals in the presence of an electron donor may be cultured under conditions that reduce at |
| 08/29/2002 | US20020119386 Reacting a iron salt with base; oxidation |
| 08/29/2002 | US20020119093 Method of producing fine particles of metal oxide |
| 08/29/2002 | US20020117084 Black composite iron oxide pigment, and paint and resin composition using the same |
| 08/28/2002 | CN1366719A Positive electrode active material for secondary cell, method for producing same and nonaqueous electrolyte secondary cell comprising same |
| 08/28/2002 | CN1366682A Magnetic ferrite powder, magnetic ferrite sinter, layered ferrite part, and process for producing layered ferrite part |
| 08/28/2002 | CN1365951A Process for preparin dispersive nano Fe3O4 particles |
| 08/28/2002 | CN1365950A Preparation method of magnetite ore particles |
| 08/27/2002 | US6440545 Non-magnetic layer is provided as a coating film of non-magnetic particles dispersed in a binder resin between the support and magnetic layers |
| 08/27/2002 | US6440377 Neutralization of the waste acid with a calcium compound subject to precipitation; production of gypsum and also of an iron oxide pigment |
| 08/27/2002 | US6440323 Tio2 and/or sno2 as main components while containing 50% or less fe2o3 so electrical resistance is remarkably increased; high frequency region exceeding 1 mhz. |
| 08/27/2002 | US6440213 Process for making surfactant capped nanocrystals |
| 08/22/2002 | US20020115007 Magnetites and their use in producing toners |
| 08/21/2002 | CN1365341A Titanium-iron base composite oxide pigment anjd method for production thereof |
| 08/21/2002 | CN1364730A Method for preparing super-fine nanometer ferric oxide powder |
| 08/21/2002 | CN1089278C Iron sulfides and process for producing the same |
| 08/20/2002 | US6436308 Mn-Zn ferrite and production process thereof |
| 08/15/2002 | WO2002063642A1 Permanent magnet and method for preparation thereof |
| 08/15/2002 | WO2002063641A1 Permanent magnet and method for preparation thereof |
| 08/15/2002 | WO2002063640A1 Permanent magnet and method for preparation thereof |
| 08/15/2002 | US20020108677 Major component of Z-type planar hexaferrite comprising oxides of barium, cobalt, zinc, copper and manganese and minor sintering aid of oxides of bismuth, vanadium, lead, boron, lithium, calcium and fluorine; soft magnetic material |
| 08/14/2002 | EP1231614A1 Oxide magnetic material and core using the same |
| 08/14/2002 | EP1231599A1 Magnetic recording medium and magnetic composite particles for magnetic recording medium |
| 08/14/2002 | EP1230163A1 Method for production of iron oxide pigments |
| 08/14/2002 | EP1230162A1 Method for the solid synthesis of ferrates of alkaline or alkaline earth metals and ferrates obtained according to this method |
| 08/14/2002 | EP1230161A1 Stabilised mixed ferrates and synthesis method thereof |
| 08/14/2002 | CN1364145A Method for making M-type hexaferrite powders or wafers |
| 08/13/2002 | US6432508 High-density acicular hematite particles, non-magnetic undercoat layer and magnetic recording medium |
| 08/13/2002 | US6432377 Particles for non-magnetic undercoat layer of magnetic recording medium, method thereof and magnetic recording medium |
| 08/08/2002 | WO2002061158A1 Fluidized bed chloride method for obtaining metal oxide concentrate, especially titanium dioxide |
| 08/08/2002 | US20020106512 Surface-modified magnetite particles as well as preparation processes and uses thereof |
| 08/08/2002 | US20020104599 Sol-gel process; forming a solution containing dissolved metal salts, and adding a proton scavenger (such as an epoxide) to the solution for inducing and controlling gelation. |
| 08/07/2002 | EP1229002A2 Iron sulfides, processes for producing the same, iron sulfide mixture, heavy metal treating agent, and method of treating with the agent |
| 08/07/2002 | EP1064227B1 METHOD FOR REPROCESSING WASTE ACID RESULTING FROM TiO2 PRODUCTION |
| 08/07/2002 | CN1363100A Soft magnetic powder and composite magnetic material using same |
| 07/31/2002 | EP1227139A1 Method of producing crystalline phosphor powders at low temperature |
| 07/25/2002 | US20020096665 Miffing sintered core of manganese zinc ferrite for recycling, adjusting powder composition to 44.0-49.8% iron oxide, 4.0-26.5% zinc oxide, 1.0-3.0 % cobalt oxide, 0.02-1.00% manganese oxide, rest manganese monoxide, pressing, sintering |
| 07/25/2002 | US20020096366 Method and composition for scavenging sulphide in drilling fluids |
| 07/24/2002 | EP1225600A2 Black magnetic iron oxide particles and magnetic toner |
| 07/24/2002 | EP1225154A2 Method for producing particles of magnetite |
| 07/23/2002 | US6423296 Constrast media |
| 07/23/2002 | US6423243 Manganese-zinc base ferrite |
| 07/23/2002 | CA2368682A1 Black magnetic iron oxide particles and magnetic toner |
| 07/18/2002 | WO2002055240A1 Very high purity fine powders and methods to produce such powders |
| 07/18/2002 | WO2001070632A9 Titanium-iron based composite oxide pigment and method for production thereof |
| 07/18/2002 | US20020093000 Production process of Mn-Zn ferrite |
| 07/18/2002 | DE10101769A1 Production of octahedral magnetite, used in electrophotography and magnetic toner, for coloring paper, plastics, lacquers, fibers or concrete or in colors, involves two-stage precipitation in aqueous alkaline solution and oxidation |
| 07/17/2002 | CN1087715C Anaerobic removal of sulphur compounds from waste water |
| 07/17/2002 | CA2367079A1 Process for producing magnetite particles |
| 07/16/2002 | US6420063 Mesoporous oxide compositions and solid oxide fuel cells |