Patents for C01G 49 - Compounds of iron (8,643)
03/2002
03/28/2002WO2000076914A3 Process for the recovery of chlorine from iron chlorides
03/28/2002US20020036472 Induction coil core, illumination unit using the same, and polycrystalline ferrite
03/28/2002DE10046876A1 Purification of iron oxide useful e.g. for production of catalysts for dehydrogenation of ethylbenzene to styrene, comprises mixing iron oxide with water or acid and thermal treatment
03/27/2002EP1191518A1 Magnetic recording medium, non-magnetic acicular composite particels and process for producing the particles
03/27/2002EP1190988A2 Bismuth-containing laser markable compositions and methods of making and using same
03/21/2002WO2002022920A1 Rare earth-iron garnet single crystal material and method for preparation thereof and device using rare earth-iron garnet single crystal material
03/21/2002US20020035035 Stable, highly active perovskite catalysts for complete oxidation at high temperatures, and the process for their preparation
03/21/2002US20020034469 Acidification; heat treatment
03/21/2002US20020033118 Containing iron, cobalt, aluminum
03/21/2002DE10044398A1 Production of iron oxide yellow pigment, used in building material, plastics, paper, color or for producing heterogeneous catalyst e.g. for ethylbenzene dehydrogenation, comprises seeding pre-precipitated iron-II chloride and oxidation
03/21/2002DE10044397A1 Magnetite und deren Verwendung bei der Herstellung von Tonern Magnetites, and their use in the preparation of toners
03/20/2002EP1187790A1 Process for producing a lithium transition metal sulphide
03/20/2002CN1340744A Organic toner containing magnetite particles
03/19/2002US6358432 For use in the electronic parts for high-frequency applications
03/14/2002WO2002020856A1 Manufacturing method for zinc sulfate, manganese sulfate and ferrous sulfate
03/14/2002WO2002020675A1 Method for producing iron oxide yellow pigments
03/14/2002WO2002020673A1 Method for producing an iron oxide nucleus containing aluminium
03/14/2002WO2002020409A1 Magnetites that are low in silicon
03/14/2002WO2001074484A3 Transition metal carbides, nitrides and borides and their oxygen containing analogs useful as water gas shift catalysts
03/14/2002US20020032119 Adsorbent for nitrogen oxides and its treatment method
03/14/2002US20020031666 Coercive force; dispersion; oxidation resistance
03/14/2002DE10043492A1 Verwendung von Magnetteilchen und Verfahren zu deren Herstellung The use of magnetic particles and methods for their preparation
03/14/2002CA2421290A1 Method for producing iron oxide yellow pigments
03/14/2002CA2421189A1 Method for producing an iron oxide nucleus containing aluminium
03/13/2002CN1339847A High frequency magnetic material and high frequency circuit element
03/07/2002US20020028353 Acicular hematite particles; storage stability
03/06/2002EP1184340A2 Use of magnetite particles
03/05/2002US6352650 Manganese-zinc ferrite and making method
03/05/2002US6352599 Bonded magnet
03/01/2002CA2356047A1 Toner containing magnetite particles
02/2002
02/28/2002WO2002016268A1 Ferrite material
02/28/2002WO2002016015A1 Mixed conducting membranes for syngas production
02/28/2002US20020024752 Optical power limiting material
02/26/2002US6350505 High-density acicular hematite particles, non-magnetic undercoat layer and magnetic recording medium
02/21/2002WO2002014221A1 Process and apparatus for post-treatment of iron oxide
02/21/2002US20020022152 Controlling particle sizes; materials handling
02/21/2002US20020022111 Laminar structure overcoating substartes
02/20/2002EP1180811A2 Non-aqueous electrolyte secondary cell
02/20/2002CN1336327A Process of producing high-purity magnetic iron oxide with ferous sulfate as by-product of titanium white production
02/20/2002CN1079373C Magnesium hydroxide solid solution, their prodn. and use
02/14/2002US20020017628 Controlling particle size, magnetism
02/14/2002DE10037636A1 Purification of iron oxide useful e.g. for production of catalysts for dehydrogenation of ethylbenzene to styrene, comprises mixing iron oxide with water or acid and thermal treatment
02/13/2002EP1179507A1 White powder and method for production thereof
02/13/2002CN1335997A Ferrite magnet powder and magnet using the magnet powder, and method for preparing them
02/13/2002CN1335283A Monocrystalline ferrite fines
02/13/2002CN1335265A Iron oxide black extracting process from slag produced in hydroquinol preparing aniline process
02/12/2002US6346348 Rechargeable lithium battery with a lithium molybdenum oxide electrode
02/07/2002WO2002010068A1 Production of metal oxides
02/07/2002WO2002009876A1 Photocatalytic film of iron oxide, electrode with such a photocatalytic film, method of producing such films, photoelectrochemical cell with the electrode and photoelectrochemical system with the cell, for the cleavage of water into hydrogen and oxygen
02/07/2002US20020014182 For use in electrical devices, magnetic devices, optical devices, biomedical devices, and electrochemical devices
02/06/2002EP1178012A2 Highly refined iron oxides
02/05/2002CA2032994C Solid multi-component membranes, electrochemical reactor components, electrochemical reactors and use of membranes, reactor components, and reactor for oxidation reactions
01/2002
01/31/2002US20020013221 Water gas shift catalysts for use in producing hydrogen for chemical processing and petroleum refining, and reducing the carbon monoxide content of feeds to fuel cells; highly active, durable, and sulfur tolerant catalyst
01/31/2002US20020012842 Nonaqueous electrolytes
01/30/2002EP1175938A1 Photocatalytic film of iron oxide, electrode with such a photocatalytic film, method of producing such films, photoelectrochemical cell with the electrode and photoelectrochemical system with the cell, for the cleavage of water into hydrogen and oxygen
01/30/2002CN1333184A Method for extracting ferri oxide pigment from by-products. produced by preparing hydroquinone with aniline method
01/24/2002WO2002006160A2 Methods of synthesizing an oxidant and applications thereof
01/24/2002US20020009642 Positive active material for secondary battery, process for preparation thereof and non-aqueous secondary battery comprising same
01/24/2002US20020009414 Nanostructure
01/24/2002US20020009413 Firing, cooling in nitrogen environment
01/24/2002US20020009405 Doubly doped lithium niobate crystals
01/23/2002EP0888545B1 Super-paramagnetic particles with increased r 1 relaxivity, processes for producing said particles and use thereof
01/17/2002US20020005210 Low temperature; salt formation
01/16/2002EP1172706A1 Non-magnetic particles for black toner and black toner using the same
01/10/2002WO2002002833A2 Preparation of pure ferric chloride from hydrochloric acid solutions by solvent extraction
01/09/2002EP1170757A2 Single-crystal ferrite fine powder
01/09/2002EP1169268A2 Mineral oxide liquid concentrates for water and wastewater treatment
01/09/2002CN1330258A Rotary kiln for preparing high-grade ferrite micropowder
01/02/2002EP1166289A1 Soft magnetic powder and composite magnetic material using the same
01/02/2002CN1329371A Secondary battery positive pole active material, its preparing method and waterless secondary battery containing said material
01/02/2002CN1329184A Bismuth-substituted garnets thick film material and producing method thereof
01/02/2002CN1328979A Powder for ferrite megnet and its manufacturing technology
12/2001
12/27/2001US20010055557 Tin-containing granular magnetic oxide particles and process for producing the same
12/27/2001US20010054549 Precursors continuously added to a tube-type reactor by a slurry pump, while the reactor is simultaneously subject to microwave energy.
12/25/2001US6332968 Solid multi-component membranes, electrochemical reactor components, electrochemical reactors and use of membranes, reactor components, and reactor for oxidation reactions
12/20/2001WO2001096502A1 Fuel modifier
12/20/2001US20010052828 Material for bismuth substituted garnet thick film and a manufacturing method thereof
12/19/2001EP1164649A1 Positive active material for secondary battery, process for preparation thereof and non-aqueous secondary battery comprising same
12/19/2001EP1164582A2 Secondary agglomerates of magnetic metal particles for magnetic recording and process for producing the same
12/19/2001EP1164581A2 Spindle-shaped goethite particles, spindle-shaped hematite particles, spindle-shaped magnetic metal particles containing iron as main component and processes for producing the same
12/13/2001US20010051129 Spindle-shaped goethite particles and process for producing the same
12/13/2001US20010051121 Process for treating alumina-bearing ores to recover metal values therefrom
12/13/2001DE10114951A1 Production of a manganese-zinc ferrite used as cores in network transformers in telecommunications comprises a maximum temperature holding step for combustion, and a cooling step carried out in a nitrogen atmosphere
12/12/2001EP1162635A1 Material for bismuth substituted garnet thick film and a manufacturing method thereof
12/12/2001CN1076106C Magnetic colour toning agent
12/11/2001US6328943 Contacting iron sulfides and/or precursors thereof in the presence of air with an effective inhibiting amount of a treatment compound selected from amine, alcohol, ketone, or mixtures
12/06/2001WO2001092148A1 Method for producing fine-grained solids and/or for depositing layers of poorly soluble compounds
12/06/2001DE10027623A1 Verfahren zur Herstellung von feinkristallinen Feststoffen und/oder zur Abscheidung von Schichten schwerlöslicher Verbindungen Process for the preparation of finely crystalline solids and / or for depositing layers of poorly soluble compounds
12/06/2001CA2349871A1 Material for bismuth substituted garnet thick film and a manufacturing method thereof
12/04/2001US6325988 Prepared from manganese complex hydroxide
11/2001
11/29/2001US20010046628 Comprising lithium mixed oxide particles coated with at least one layer of a mixture of an alkali metal compound and a metal oxide; chemical resistance, acid resistance; for use as cathode in electrochemical cells
11/29/2001US20010045541 For cores in broad-band transformers
11/28/2001EP1158546A1 Tin-containing granular magnetic oxide particles and process for producing the same
11/28/2001EP1080035B1 Particle size control in pyrohydrolysis of metal chlorides
11/22/2001DE10022867A1 Precipitation of nickel and lead ions from iron(II) salt solution, from e.g. lixiviation of cyclone dust from titanium dioxide production by chloride process, involves using excess alkali sulfide and filtration after dwell
11/21/2001EP1154952A1 Precipitation process
11/21/2001CN1075042C Metal hydroxide solid solution having high aspect ratios and the producing process thereof
11/14/2001CN1322364A Magnenese-zinc ferrite
11/08/2001WO2001084566A1 Magnetic ferrite powder, magnetic ferrite sinter, layered ferrite part, and process for producing layered ferrite part
11/08/2001WO2001084561A2 Tunable devices incorporating bicu3ti3feo¿12?
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