| Patents for C01G 49 - Compounds of iron (8,643) |
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| 05/09/2000 | US6059988 Mixture with aluminum and silicon oxide |
| 05/04/2000 | WO2000024677A1 Materials for solid-state gas sensors |
| 05/04/2000 | CA2339994A1 Materials for solid-state gas sensors |
| 05/03/2000 | EP0997436A1 Process for preparing usable products from an impure ferric sulfate solution |
| 05/02/2000 | US6057649 Illumination unit, electrodeless low-pressure discharge lamp, and coil suitable for use therein |
| 05/02/2000 | US6056935 From ferrous sulfate hydrate and sulfur or hydrogen sulfide. |
| 05/02/2000 | CA2138777C Production of metals from minerals |
| 04/27/2000 | WO2000023631A1 Micronic pre-alloyed metal powder based on three-dimensional transition metal |
| 04/27/2000 | WO2000023630A1 Metal powders based on tungsten and/or molybdenum and three-dimension metals |
| 04/27/2000 | CA2315347A1 Micronic pre-alloyed metal powder based on three-dimensional transition metal |
| 04/27/2000 | CA2315346A1 Metal powders based on tungsten and/or molybdenum and three-dimension metals |
| 04/26/2000 | EP0995720A1 Hematite particles for non-magnetic undercoat layer of magnetic recording medium, method of production thereof and magnetic recording medium |
| 04/25/2000 | US6053972 Iron oxidehydroxide formed by precipitation with aluminum salts for inorganic yellow pigments |
| 04/19/2000 | EP0993419A1 A process for producing an aqueous solution comprising ferric chloride |
| 04/19/2000 | CN1250713A High density ferrite substrate, and beads composite used for mfg. same |
| 04/11/2000 | US6048920 Iron sulfide in resins |
| 04/11/2000 | US6048412 Spindle-shaped goethite particles, spindle-shaped hematite particles and spindle-shaped magnetic iron based alloy particles |
| 03/30/2000 | WO2000017106A1 Solid-state gas sensors and compounds therefor |
| 03/30/2000 | CA2339863A1 Solid-state gas sensors and compounds therefor |
| 03/28/2000 | US6043022 Apparatus and method for the generation and use of ferric ions |
| 03/28/2000 | US6042642 For coloring building materials, plastic, paper, paint, lacquer |
| 03/22/2000 | CN1248230A Treatment of solution containing iron salts |
| 03/21/2000 | US6040043 Substrate, nonmagnetic layer and acicular iron oxyhydroxide and water absorbers |
| 03/16/2000 | WO2000014752A1 Manganese-zinc ferrite and method for producing the same |
| 03/16/2000 | WO2000014302A1 Electrochemical production of amorphous or crystalline metal oxides with particle sizes in the nanometer range |
| 03/15/2000 | EP0984826A1 Autothermic reactor comprising oxygen ion conducting dense ceramic membrane and process using the autothermic reactor for producing synthesis gas |
| 03/15/2000 | EP0759888B1 Process for the preparation of layered double hydroxides. |
| 03/15/2000 | CN1050344C Continuous prodn. of high-purity ferric oxide and device thereof |
| 03/09/2000 | DE19840842A1 Elektrochemische Herstellung amorpher oder kristalliner Metalloxide mit Teilchengrößen im Nanometerbereich Electrochemical production of amorphous or crystalline metal oxides with particle sizes in the nanometer range |
| 03/03/2000 | CA2281123A1 Thermally stable, highly active perovskite catalysts for complete oxidation at high temperatures, and the process for their preparation |
| 02/29/2000 | US6030688 Used as coloring pigment for paints, resin moldings, printing ink, road asphalt, cosmetics, and as a non-magnetic material for undercoat layers formed on non-magnetic substrates which constitute substrates for magnetic recording media |
| 02/23/2000 | EP0980857A1 A Mn-Zn ferrite |
| 02/23/2000 | EP0980856A1 A Mn-Zn Ferrite |
| 02/23/2000 | EP0980287A2 Process for regulating a circulating fluidised bed and use of the process |
| 02/16/2000 | CN1049518C Method for producing ferrite magnet |
| 02/08/2000 | US6022619 Textile composite with iron oxide film |
| 02/08/2000 | US6022406 Processing foundry dust, and in particular dust from electrical steelworks, preparing zinc ferrite |
| 02/08/2000 | US6022404 Surface-modified, pyrogenically produced mixed oxides, method of their production and use |
| 02/01/2000 | US6019885 Oxygen transport from an oxygen-containing gas to a gas that consumes oxygen. |
| 01/27/2000 | WO2000003947A1 Process for synthesizing metal oxides and metal oxides having a perovskite or perovskite-like crystal structure |
| 01/25/2000 | US6017631 Ferrite having fine particle size, a low coercive force, a large saturation magnetization, a small switching field distribution and heat resistance |
| 01/25/2000 | US6017504 Process for synthesizing perovskites using high energy milling |
| 01/25/2000 | US6017497 Atomizing roasting furnace for producing ferrite raw material powder |
| 01/20/2000 | WO2000003403A1 High performance iron-rare earth-boron-refractory-cobalt nanocomposites |
| 01/20/2000 | WO2000002813A1 Process for chlorine recovery |
| 01/20/2000 | CA2336011A1 High performance iron-rare earth-boron-refractory-cobalt nanocomposites |
| 01/19/2000 | EP0971692A2 Specific magnetosome, method for the production and use thereof |
| 01/18/2000 | CA2175856C A method for producing positive electrode material and lithium batteries incorporating this material |
| 01/12/2000 | EP0971050A2 Process for partially neutralizing acidic metal chloride containing solutions and for preparing metal oxides |
| 01/12/2000 | EP0813500B1 Purification of metal containing solutions |
| 01/11/2000 | US6013193 Magnetite particles and process for production thereof |
| 01/05/2000 | EP0969483A1 Bonded magnet, magnet roll and ferrite powder to be used for their preparation, and method for producing the same |
| 01/05/2000 | EP0968961A2 Elemental chlorine-free conversion of waste HCl liquor by oxidation and concentration to form aqueous ferric chloride solution |
| 01/05/2000 | EP0729436B1 Photoassisted oxidation of species in solution |
| 12/28/1999 | US6007885 Oxygen scavenging compositions and methods for making same |
| 12/22/1999 | EP0964830A1 Method for producing hyperazeotropic hydrochloric acid from metal chloride solutions |
| 12/22/1999 | CN1239077A Solid-phase catalytic oxidizing process for preparing alpha-Fe2O3 |
| 12/21/1999 | US6004525 Simply produced hollow oxide particle whose shell wall is thin and minutely irregular or porous; catalyst carriers |
| 12/08/1999 | EP0815056B1 Method of producing alpha-hematite hydrate from galvanising sludge |
| 12/08/1999 | CN1047253C Process for producing calcined materials for ferrite magnet |
| 12/08/1999 | CN1047152C Reduction of residue chloride in iron oxides |
| 12/07/1999 | US5997828 Process for production of alumina from ore bodies containing aluminum |
| 12/07/1999 | CA2064088C Bivalent iron compounds |
| 12/02/1999 | WO1999061370A1 Particle size control in pyrohydrolysis of metal chlorides |
| 12/01/1999 | EP0960867A1 Process for preparation of oxide magnetic compact |
| 12/01/1999 | EP0960856A2 Generation of metal-carbonyl standards for the calibration of spectroscopic systems |
| 12/01/1999 | CN1236960A Process for preparation of oxide magnetic compact |
| 12/01/1999 | CN1046923C Method of producing basic ferric sulfate mixing and coagulant agent for water treatment |
| 12/01/1999 | CN1046864C Solid multi-component membranes for electrochemical reactor |
| 11/30/1999 | US5994611 Spindle-shaped, acicular-shaped or plate-like-shaped particles having the average major axial diameter or plate diameter of 0.02 to 2.0 mum, the average aspect ratio or plate ratio of 2 to 20 |
| 11/24/1999 | EP0959054A1 MnMgCuZn ferrite material and the use thereof |
| 11/24/1999 | EP0958248A1 Process for the preparation of water purification solutions containing ferric iron and the use of the product as of obtained |
| 11/23/1999 | US5989703 Iron oxide magnetic powder and magnetic recording medium using the same |
| 11/23/1999 | US5989516 Resistance to oxidation, uniform particle size, large saturation magnetization, high coercive force |
| 11/10/1999 | EP0955567A2 Surface-modified magnetite particles as well as preparation processes and uses thereof |
| 11/10/1999 | EP0828695B1 Ferrite magnet, and powder for ferrite magnet and production process thereof |
| 11/09/1999 | US5982034 Multilayer; strontium, calcium, ruthenium oxide |
| 11/09/1999 | US5980840 Exothermic and endothermic chemical conversions with heat exchanging; combustion of hydrocarbons |
| 11/03/1999 | EP0776317B1 Two powder synthesis of hydrotalcite and hydrotalcite-like compounds |
| 10/28/1999 | WO1999054255A1 Method for controlling intermodulation product of non-reciprocal circuit element |
| 10/19/1999 | US5968405 Cobalt-coated acicular magnetic iron oxide particles |
| 10/19/1999 | US5968248 Heat-resistant inorganic pigment and process for producing the same |
| 10/19/1999 | US5968229 Purification of metal containing solutions |
| 10/19/1999 | US5968226 Process of making goethite or iron-based alloy particles |
| 10/13/1999 | EP0949202A1 Heat-resistant yellow pigment |
| 10/06/1999 | EP0947484A1 Ceramic material for use in the separation of oxygen from gas mixture |
| 10/06/1999 | EP0947012A1 Lithium manganese oxy-fluorides for li-ion rechargeable battery electrodes |
| 10/05/1999 | US5961055 Method for upgrading iron ore utilizing multiple magnetic separators |
| 09/30/1999 | WO1999048816A1 METHOD FOR REPROCESSING WASTE ACID RESULTING FROM TiO2 PRODUCTION |
| 09/30/1999 | WO1999048815A1 METHOD FOR PRODUCING IRON OXIDE PIGMENTS FROM WASTE ACID RESULTING FROM TiO2 PRODUCTION |
| 09/30/1999 | WO1999048814A1 Preparation and uses of mixed metal coagulants |
| 09/30/1999 | WO1999048808A1 METHOD FOR REPROCESSING WASTE ACID RESULTING FROM TiO2 PRODUCTION |
| 09/30/1999 | CA2324527A1 Method for reprocessing waste acid resulting from tio2 production |
| 09/30/1999 | CA2324308A1 Method for reprocessing waste acid resulting from tio2 production |
| 09/30/1999 | CA2324215A1 Method for producing iron oxide pigments from waste acid resulting from tio2 production |
| 09/28/1999 | US5958624 For lithium rechargeable battery system |
| 09/28/1999 | US5958238 Feeding to anerobic digestion system; converting to sulfide; circulating effluent; removing sulfide; converting sulfide to sulfur |
| 09/28/1999 | CA2150295C Rare earth-based dispersible compound, colloid suspension obtained from this compound, processes for their preparation and their use in catalyst production |
| 09/23/1999 | WO1999047351A1 Oxygen scavenging compositions and methods for making same |
| 09/23/1999 | DE19812262A1 Production of gypsum and iron oxide pigments from dilute acid formed in the manufacture of titanium dioxide |