Patents for C01G 49 - Compounds of iron (8,643)
10/1986
10/22/1986EP0128181B1 Cathode material for alkali-metal rechargeable cell
10/21/1986US4618375 From an iron compound, an ammonia-releasing compound and water in a nonaqueous solvent; refluxing
10/14/1986CA1212517A1 Oxygen-deficient, barium-containing perovskites
10/07/1986US4615874 Process for producing chlorine from ferric chloride
09/1986
09/30/1986US4614643 Process for treating liquid chlorinated hydrocarbon wastes containing iron
09/16/1986US4612138 Stable acidic and alkaline metal oxide sols
09/10/1986EP0194142A2 Production of compounds by reaction of solid materials at high temperatures produced by plasma arc torches
09/02/1986CA1210568A1 Ferrimagnetic spinel fibers
08/1986
08/28/1986WO1986005026A1 Facetted nodular particles, their preparation and use
08/27/1986EP0191998A1 Process for preparing facetted nodular particles and isotropic magnetic recording elements containing such particles
08/26/1986CA1210218A1 Complex metal chalocogenides
08/19/1986US4606846 Mixed rare earth metal, divalent transition metal, aluminum oxide
08/19/1986US4606843 Process for producing a dried, stable mixture of alkali metal or alkaline earth metal ferrate (VI) compounds with hydroxides and carbonates
08/13/1986EP0190352A1 Alkali metal-carrying substance, and its use as catalyst
07/1986
07/30/1986EP0188765A2 Method for the preparation of isometric magnetic iron oxide pigments
07/30/1986CN85100901A Soundless demolishing agent of high efficiency and its mfg process
07/30/1986CN85100736A To remove iron from sulfate solutions by extraction
07/29/1986US4602999 Method for removing a silicic compound from the waste liquor of steel pickling
07/23/1986EP0188171A1 Carrier for use in electrophotographic developers
07/22/1986CA1207981A1 Production of fine ferrimagnetic spinels
07/17/1986EP0165945A4 Method of improving the purity of alkali-metal hydroxides.
07/16/1986EP0187434A2 Spherical magnetite particles
07/16/1986EP0187331A2 Process for the preparation of purely and clearly tinted red iron oxide pigments
07/15/1986CA1207537A1 Hydrogenation of carbonaceous material
07/08/1986CA1207151A1 Process for selectively stripping iron ions from an organic solvent
07/02/1986EP0186603A1 Process for producing magnetized hexagonal ferrites, use of these ferrites as basic materials for magnets or magnetic registration
07/02/1986EP0186528A1 Magnetic garnet material, magnetic film with a strong Faraday rotation comprising such a material and manufacturing method therefor
07/01/1986US4598034 Ferrite carriers for electrophotographic development
07/01/1986US4597958 Aging suspension of ferric hydroxide while controlling temperature and ph
06/1986
06/25/1986EP0185548A2 Methods of fluidizing and fluidizable mixtures
06/24/1986US4596698 Extractor for removing hydrogen sulfide from steam
06/17/1986CA1206008A1 Recovery of zinc from zinc-containing sulphidic material
06/17/1986CA1205976A1 Process for producing antimony trioxide having a low alpha-ray strength
06/11/1986EP0183988A2 Magnetic powders for magnetic recording media and magnetic recording media employing said magnetic powder therein
06/10/1986US4594628 Magnetic head having cobalt-containing zinc-ferrous ferrite core
06/10/1986US4594267 Process for producing cobalt-containing magnetic iron oxide powder
06/10/1986CA1205615A1 Iron chloride waste treatment in molten salt
06/04/1986EP0183501A1 Improved separation extraction process for immiscible liquids
06/03/1986US4592988 Mixture of spherical particles
05/1986
05/28/1986EP0182406A1 Titanium-containing and cobalt-containing manganese-zinc ferrite core and method of manufacturing same
05/27/1986US4591489 Process for the treatment of hydrochloric acid pickles containing iron and zinc
05/27/1986US4591334 Fluidization aid
05/14/1986EP0180881A2 Flaky iron oxide pigments, process for their preparation and their use
05/13/1986US4588576 Production of microcrystalline zirconia
05/13/1986US4588575 Production of microcrystalline metal oxides
05/06/1986US4587116 Process for treating chlorinated nitrogen-containing hydrocarbons
04/1986
04/29/1986US4585568 Plate-like barium ferrite particles for magnetic recording and process for producing the same
04/23/1986EP0178588A2 Ferrimagnetic particles and process for their production
04/23/1986EP0178498A2 Process for the reduction of metal ions in aqueous solutions
04/22/1986US4584242 Treating with ferrous hydroxide to produce magnetite-modified surfaces
04/22/1986US4583299 Tendrillar carbonaceous material
04/22/1986CA1203452A1 Stable acidic and alkaline metal oxide sols
04/16/1986EP0178269A2 Method for the preparation of fine hexagonal ferrite powders, in particular, for magnetic recording
04/15/1986US4582691 Process for separating Fe(III) from an aqueous solution of metallic salts and a process for separating Fe(III) from an organic extraction solvent
04/15/1986US4582623 Barium ferrite magnetic powder and recording medium employing the same
04/15/1986CA1203071A1 Catalyzed aldol condensations
04/09/1986EP0176919A2 Process for the preparation of fine isotropical ferrite powder having a spinel structure
04/08/1986US4581251 Heat treatment of ferric oxide prior to treatment with cobalt
04/08/1986CA1203029A1 Treatment of solutions to facilitate the removal of ferric iron therefrom
04/02/1986EP0176126A1 Apparatus and process for treating pickling and etching solutions
04/02/1986EP0176115A1 Magnet core based on lithium-zinc-magnanese ferrite
04/01/1986US4579724 Cathode material for alkali-metal rechargeable cell
04/01/1986US4579722 Removing iron from red mud and bauxite as iron pentacarbonyl; reduction and carbonylation
03/1986
03/25/1986US4578313 Particles coated with carbon produced by thermal decomposition
03/25/1986US4578090 Method for processing gaseous effluent streams recovered from the vapor phase oxidation of metal halides
03/25/1986CA1202200A1 Oxygen stabilized zirconium-vanadium-iron alloy
03/18/1986US4576812 Chlorination of copper, lead, zinc, iron, silver and gold
03/18/1986US4576636 Process for beneficiating oxidic ores
03/18/1986US4576635 Treating acicular metal oxyhydroxide with silicon compound, dehydrating, and reducing
03/12/1986EP0174080A1 Catalystsfor the synthesis of ammonia
03/12/1986EP0174079A1 Ammonia synthesis catalysts based on oxides of iron, aluminium and cobalt
03/12/1986EP0173910A2 Isometric iron oxides with superior coercivity, process for their production and their use
03/11/1986CA1201699A1 Preparative process for alkaline earth metal, aluminum-containing spinels
03/05/1986EP0173133A2 Process for partial oxidation of FeCl2 to FeCl3
03/05/1986EP0173132A2 Two stage chlorination of titaniferous ore with FeCl3 reclamation
03/04/1986US4574078 Hydrolysis, roasting
03/04/1986CA1201422A1 Process for the recovery of aluminum and iron salts from acidic waste waters
03/04/1986CA1201255A1 Dark brown pigments of pseudobrookite structure
02/1986
02/27/1986WO1986001314A1 Ferrite electrostatographic toner carrier core
02/25/1986US4572822 Leaching with sulfuric acid in sulfur dioxide atmosphere
02/19/1986EP0172121A1 Anisotropic magnetic material based on oxides for permanent magnets
02/19/1986EP0171709A2 Process for preparing a pigment comprising mixed phases based on iron and chromium oxides
02/11/1986US4569775 Method for manufacturing a magnetic powder for high density magnetic recording
02/04/1986US4568993 Magnetic head
01/1986
01/28/1986US4567101 Ferrimagnetic spinel fibers
01/28/1986US4567031 Process for preparing mixed metal oxides
01/28/1986US4567026 Method for extraction of iron aluminum and titanium from coal ash
01/28/1986US4566986 Flocculating agents and processes for making them
01/21/1986US4565683 Iron monoxide
01/21/1986US4565675 Pollution control
01/21/1986CA1199487A1 Process for the production of iron oxides epitaxially coated with iron oxides for magnetic recording
01/15/1986EP0168308A1 Process for the treatment of iron II sulfate heptahydrate for suppressing its tendency to agglomerate and to make it free-flowing
01/14/1986CA1199299A1 Hydrogenation of carbonaceous material
01/08/1986EP0167164A2 Ferromagnetic powder and method for producing the same
01/08/1986EP0089353B1 Method for the selective chlorination of metal oxide mixtures of natural or synthetic origine
01/07/1986US4563338 Stepwise extraction
01/02/1986EP0166710A1 Process for leaching sulfides containing zinc and iron
01/02/1986EP0165945A1 Method of improving the purity of alkali-metal hydroxides
12/1985
12/31/1985US4562105 Ferrimagnetic oxides and magneto-optical recording medium employing the same
12/31/1985US4561988 Process for production of plate-like barium ferrite particles for magnetic recording
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