| Patents for C01G 49 - Compounds of iron (8,643) |
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| 12/31/1985 | US4561887 Process for recovering metals from solution through solvent extraction and pyrometallurgical reduction |
| 12/31/1985 | CA1198579A1 Production of microcrystalline ferrimagnetic spinels |
| 12/27/1985 | EP0165543A2 Recovery of chlorine |
| 12/24/1985 | US4560544 Neutralizing and oxidizing a ferrous salt solution in the presence |
| 12/19/1985 | WO1985005562A1 Alkali metal-carrying substance, and its use as catalyst |
| 12/18/1985 | EP0164533A2 Method of preparing finely divided, needle-shaped highly coercitive, hexagonal ferrite |
| 12/17/1985 | CA1198048A1 Process for recovery of mineral values from subterranean formations |
| 12/11/1985 | EP0164251A2 Barium ferrite particles for magnetic recording media |
| 11/13/1985 | EP0161050A1 Process for treating and recovering pickling waste liquids for stainless steel |
| 11/13/1985 | EP0160877A2 Process for producing a powder of fine ferrite particles containing cobalt |
| 11/12/1985 | US4552632 Hydrometallurgical method of extraction of copper from sulphide-containing material |
| 11/06/1985 | EP0160152A2 Stabilized Fe2 Cl5 and a preparation method thereof |
| 11/05/1985 | US4551327 Process for producing cobalt-and ferrous iron-containing ferromagnetic iron oxides |
| 11/05/1985 | US4551326 Process for preparing alkali metal ferrates |
| 11/05/1985 | US4551260 Wet process of preparing fine particles of ferrite of magnetoplumbite structure |
| 10/29/1985 | US4550098 Methods for the removal of gaseous impurities from mixed gas streams |
| 10/22/1985 | US4548801 Plate-like barium ferrite particles for use in magnetic recording and process for producing the same |
| 10/22/1985 | CA1195510A1 Process for the production of nickel, high-purity magnesium oxide and cement |
| 10/16/1985 | EP0158406A1 Dispersion of magnetic particles |
| 10/16/1985 | EP0158240A2 Process for preparing isotrope magnetic cobalt containing iron oxides |
| 10/08/1985 | US4545974 Heating with alkali metal nitrate or nitrite |
| 10/08/1985 | US4545973 Molybdenum or tungsten compounds, high temperature lubricants |
| 10/02/1985 | EP0156537A2 Biological magnetic fluids |
| 10/01/1985 | US4544602 Oxidation resistant |
| 09/25/1985 | EP0155837A2 Process for producing alkali metal ferrates utilizing hematite and magnetite |
| 09/24/1985 | US4543198 Ferrite magnetic material for magnetic recording and process for the preparation thereof |
| 09/24/1985 | US4543197 Process for producing magnetic metallic oxide |
| 09/18/1985 | EP0154919A1 Process for preparation yellow-brown zinc ferrite pigments |
| 09/17/1985 | US4542009 Synthesis of intercalatable layered stable transition metal chalcogenides and alkali metal-transition metal chalcogenides |
| 09/17/1985 | US4541973 Production of ferrimagnetic spinel fibers |
| 09/11/1985 | EP0154285A2 Process for producing ferromagnetic metal powder |
| 09/10/1985 | US4540551 Two stage chlorination of titaniferous ore with FeCl3 reclamation |
| 09/10/1985 | US4540500 Low temperature sinterable oxide magnetic material |
| 09/10/1985 | CN85100187A Process for chemcial separation of phosphate ore |
| 09/10/1985 | CA1193175A1 Process for producing cobalt containing ferromagnetic iron oxides |
| 09/03/1985 | US4539129 Magnetic recording media |
| 08/28/1985 | EP0067812B1 Scavenging hydrogen sulfide from hydrocarbon gases |
| 08/20/1985 | CA1192021A1 Detoxification of spent antimony halide catalyst and recovery of antimony values |
| 08/14/1985 | EP0151490A2 Process for producing ultra-fine ceramic particles |
| 08/07/1985 | EP0150580A1 Production of barium ferrite particles |
| 07/31/1985 | EP0149758A2 Process of preparing ferrite with a predetermined ferrous content |
| 07/30/1985 | US4532180 Garnet film for ion-implanted magnetic bubble device |
| 07/30/1985 | US4532114 Purification of geothermal steam containing boron, arsenic or mercury |
| 07/30/1985 | US4532113 Treating with limestone in molten bath of calcium chloride hydrate |
| 07/30/1985 | US4532112 Mixing concentrated hydrochloric acid with antimony trioxide to form antimony chloride, removing residue, adding water, heating, stirring to precipitate trioxide, separating, washing, drying |
| 07/23/1985 | US4530819 Process for reducing the iron |
| 07/16/1985 | US4529524 Process for producing plate-like barium ferrite particles for magnetic recording |
| 07/10/1985 | EP0147709A2 Process for producing isotropical magnetic-iron oxides containing cobalt and their use |
| 07/10/1985 | EP0147464A1 Chemically active aqueous solution and solid substance containing ferrous ion |
| 07/09/1985 | US4528164 Concurrent production of anhydrous non-metal and metalloid halides and ceramic materials with the aid of magnesium halide |
| 07/04/1985 | WO1985002834A1 Method of improving the purity of alkali-metal hydroxides |
| 07/02/1985 | US4526650 Mixing pickling acid comprising iron, chrome, nickel, nitric and hydrofluoric acids with sulfuric acid, evaporating, crystallizing, where crystallization is promoted by dividing metal salt, precipitating separately |
| 06/26/1985 | EP0146100A2 Process for producing isotropical magnetic-iron oxides containing cobalt and their use |
| 06/25/1985 | CA1189647A1 Plastics colored with transparent iron oxide spinels |
| 06/19/1985 | EP0145561A2 Fibrous material for an electrolyzer diaphragm, and diaphragm comprising such material |
| 06/19/1985 | EP0145229A1 Production of barium ferrite particles |
| 06/18/1985 | US4524058 Process for the preparation of a hydrogen-rich gas |
| 06/18/1985 | CA1188882A1 Method for manufacturing a magnetic powder for high density magnetic recording |
| 06/11/1985 | US4522937 Preparative process for alkaline earth metal, aluminum-containing spinels |
| 06/11/1985 | CA1188830A1 Water treatment with ferric polychloride |
| 05/29/1985 | EP0142775A2 Black iron oxide pigments of high tinting strength, process for preparing them and their use |
| 05/29/1985 | EP0142731A1 Carrier of developer electrophotographic copying machines |
| 05/28/1985 | US4519987 Reacting to form gaseous chlorides |
| 05/23/1985 | WO1985002208A1 Fiber material for electrolyzer diaphragm and diaphragm comprising such a material |
| 05/15/1985 | EP0141558A1 Process of manufacture for barium ferrite particles for magnetic recording media |
| 05/15/1985 | EP0141313A1 Process for the regeneration of hydrochloric acid-based pickles containing iron and zinc |
| 05/15/1985 | EP0141034A2 Method for removing a silicic compound from the waste liquor of steel pickling |
| 05/14/1985 | CA1186885A1 Thermostable iron oxide pigments |
| 05/08/1985 | EP0140409A1 Magnet core of lithium-zinc-manganese ferrite |
| 05/07/1985 | US4515756 Adsorption on hydrous iron oxide |
| 05/07/1985 | US4515696 Separation of residue after neutralization before precipitation |
| 04/23/1985 | US4512906 From chlorides, nitrates or hydroxides of strontium, barium or lead |
| 04/16/1985 | US4511677 Ion exchange-active compositions consisting of water-soluble polyelectrolyte upon ion exchange functional substrate |
| 04/10/1985 | EP0136599A2 Barium ferrite magnetic powder and recording medium employing the same |
| 04/03/1985 | EP0135774A2 Magnetic recording medium and magnetic particles therefor |
| 03/27/1985 | EP0135078A2 Rotary drum furnace and its use |
| 03/27/1985 | EP0134936A1 Hydrothermally treated product of compound having hydrotalcite-like crystal structure, composition thereof, and use thereof |
| 03/26/1985 | US4507273 Oxidation process for production of acidic ferric sulphate |
| 03/26/1985 | CA1184363A1 Low-halogen zinc ferrite pigments production and use |
| 02/26/1985 | US4501774 Process for the production of cobalt-containing magnetic iron oxide powder |
| 02/19/1985 | US4500499 Production of high purity stable ferrate salts |
| 02/13/1985 | EP0132682A2 Yellow iron oxide pigments having a low silking effect, and procss for producing them |
| 02/05/1985 | US4497726 Electrode material |
| 02/05/1985 | US4497723 Preparation of acicular, ferrimagnetic iron oxides |
| 01/30/1985 | EP0132321A1 Optical materials from intercalation of polyvalent cations in beta double prime alumina |
| 01/29/1985 | CA1181598A1 Hydrometallurgical process for the recovery of lead, silver, gold and zinc from impure jarosite residues of an electrolytic zinc process |
| 01/22/1985 | US4495164 Process for producing acicular magnetite or acicular maghemite |
| 01/22/1985 | US4495080 Method for preparing a cation exchanger |
| 01/22/1985 | CA1181234A1 Process for producing cobalt-containing magnetic iron oxide powder |
| 01/16/1985 | EP0131223A2 Process for producing cobalt-modified ferromagnetic iron oxide |
| 01/15/1985 | US4493874 Production of a magnetic powder having a high dispersibility |
| 01/15/1985 | US4493779 Process for the preparation of ferrite magnetic particulate for magnetic recording |
| 01/03/1985 | WO1985000033A1 Chemically active aqueous solution and solid substance containing ferrous ion |
| 01/01/1985 | US4491619 Ferrous oxide coated with boron oxide |
| 12/25/1984 | US4490338 Process for separating trivalent iron from an aqueous chloride solution |
| 12/19/1984 | EP0128689A1 Iron chloride waste treatment in molten salt |
| 12/19/1984 | EP0128262A1 Complex metal chalcogenides |
| 12/19/1984 | EP0128181A1 Cathode material for alkali-metal rechargeable cell. |
| 12/18/1984 | US4489043 Manufacture of manganous sulfate solutions |
| 12/18/1984 | US4489042 Uranium ore, solubilizing pyrites |