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