| Patents for C01G 49 - Compounds of iron (8,643) |
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| 10/07/1987 | CN86100780A Method to produce iron oxide red pegment |
| 10/06/1987 | US4698289 Process for making ferrite spherical particulate toner core from raw fly ash |
| 10/06/1987 | US4698281 Garnet-type magnetic material high faraday rotation magnetic film containing such a material and process for the production thereof |
| 10/06/1987 | US4698182 Autoclaving alkaline aqueous suspension of metal compounds followed by treatment with a silicon compound and heating; coercive force |
| 10/06/1987 | US4698100 Iron oxide yellow pigments having a low silking effect and a process for production thereof |
| 10/06/1987 | US4697744 Process for the production of iron oxide fine powder |
| 09/23/1987 | EP0237944A2 Process for the preparation of acicular alpha-iron-III oxide |
| 09/23/1987 | EP0237943A2 Process for the preparation of acicular alpha-iron-III oxide |
| 09/15/1987 | US4693931 Magnetic recording medium and magnetic particles therefor |
| 09/02/1987 | CN86106586A Process of producing ferroferric-oxide black |
| 09/01/1987 | US4690806 Removal of sulfur from process streams |
| 09/01/1987 | US4690768 Process for the preparation of ferrite magnetic particulate for magnetic recording |
| 08/25/1987 | US4689317 Catalyst precursor for ammonia synthesis and process for its production |
| 08/19/1987 | EP0232615A2 Liquid phase adsorption and oxidation of ferric chloride using a eutectic salt complex |
| 08/18/1987 | US4687643 Hydrated metal oxides; calcined |
| 08/13/1987 | WO1987004694A1 Method and apparatus for biological processing of metal-containing ores |
| 08/11/1987 | US4686142 Process for the production of iron oxides epitaxially coated with cobalt the coated oxides and their cue |
| 08/06/1987 | DE3603431A1 Process for preparing acicular (needle-shaped) ferromagnetic metal particles consisting essentially of iron |
| 08/05/1987 | EP0231128A2 Plate-like barium ferrite particles and process for producing the same |
| 07/28/1987 | US4683167 Cores, cobaltous hydroxide-ferrous hydroxide coating, zinc ion |
| 07/22/1987 | EP0229407A1 Process for removal of particulates and iron cyanide complex |
| 07/21/1987 | US4681637 Process for the production of yellow-brown zinc ferrite pigments |
| 07/14/1987 | US4680130 Preparation of finely divided isotropic ferrite powders having the spinel structure |
| 07/08/1987 | EP0227893A2 Method of removing metal contaminants from solutions |
| 06/30/1987 | US4676838 Lamellar iron oxide pigments, a process for the production thereof and the use thereof |
| 06/30/1987 | US4676828 Process for the leaching of sulphides containing zinc and iron |
| 06/23/1987 | US4675307 Alkali metal-supported catalyst |
| 06/23/1987 | US4675170 Preparation of finely divided acicular hexagonal ferrites having a high coercive force |
| 06/23/1987 | CA1223126A1 Process for recovering zinc from ferrites |
| 06/16/1987 | CA1222871A1 Elimination of iron from leaching solutions |
| 06/09/1987 | US4671885 Process for the preparation of magnetized hexagonal ferrites, use of these ferrites as base materials for magnets or for magnetic recording |
| 06/09/1987 | CA1222704A1 Magnetic particles as supports for organic synthesis |
| 06/02/1987 | US4670357 Making ferric hydrous oxide and retarding deposition of iron compounds on walls of conduits |
| 06/02/1987 | US4670322 Metal oxide magnetic substance and a magnetic film consisting thereof and their uses |
| 06/02/1987 | US4670244 Using ferrophosphorus reducing agent |
| 06/02/1987 | US4670230 Using alkyl phosphoric acid compound and petroleum hydrocarbon diluent |
| 05/27/1987 | EP0223050A2 Fine isometric hexaferrite pigments, process for preparing same and use thereof |
| 05/26/1987 | US4668657 Iron catalyst and method of producing it |
| 05/13/1987 | EP0221765A2 Ferrite-ceramic composite powder and method of manufacturing the same |
| 05/13/1987 | EP0221473A2 Heat-resistant yellow pigments, process for their preparation and their use |
| 05/12/1987 | US4664947 Multi-layer process for cobalt treatment of ferromagnetic oxides |
| 05/12/1987 | US4664849 Optical materials from intercalation of polyvalent cations in beta double prime alumina |
| 05/12/1987 | US4664841 Fine particle substance-containing non-aqueous dispersions |
| 05/12/1987 | US4664831 Preparation of finely divided ferrite powders |
| 05/06/1987 | EP0220586A2 Fine isometric hexaferrite pigments with a W structure, process for preparing same and use thereof |
| 05/05/1987 | US4663262 Carrier for use in electrophotographic developers |
| 05/05/1987 | US4663145 Inert balls, pyrolysis |
| 04/29/1987 | EP0220026A2 Silica or alumina sol using reactive monomer as dispersion medium |
| 04/28/1987 | US4661634 Filtration through porous polymer particles in fiber form |
| 04/21/1987 | US4659557 Process for producing ferrous sulphate in granule form |
| 04/14/1987 | US4657782 Coating a substrate with ferric acid and rare earths salts, thermally decomposing, crystallization |
| 04/14/1987 | US4657752 Process for preparing ferrous carbonate |
| 04/14/1987 | CA1220421A1 Process for the preparation of solid pharmaceutical products |
| 04/14/1987 | CA1220324A1 Process for the preparation of a hydrogen-rich gas |
| 04/09/1987 | WO1987002173A1 Compositions of particulate magnetic oxides with a structure of the lacunar spinel type, preparation and application thereof |
| 04/09/1987 | WO1987002033A1 Particulate compositions of ferromagnetic metal oxalates in the form of submicronic needle shaped particles, preparation and application thereof |
| 04/07/1987 | US4655839 Landfillable composition from iron chloride waste treatment in molten salt |
| 03/31/1987 | US4654320 Iron, aluminum, alkaline earth oxide |
| 03/24/1987 | US4652435 Stabilized ferrous compound composition |
| 03/24/1987 | US4652433 Method for the recovery of minerals and production of by-products from coal ash |
| 03/17/1987 | US4650597 Preparation of finely divided isotropic cobalt-containing ferrite powder |
| 03/11/1987 | EP0214026A1 Temperature-stable magnetic material for use at hyperfrequencies, and method of making it |
| 03/05/1987 | DE3628874A1 Magnetic powder for high density magnetic recording, and a magnetic recording medium using the magnetic powder |
| 02/24/1987 | US4645611 Dispersion |
| 02/17/1987 | US4643772 Preparation of a mixed-phase pigment based on iron oxide and chromium oxide |
| 02/04/1987 | CN86104606A Mixed metal hydroxides for thickening water or hydrophylic fluids |
| 01/31/1987 | CN86100483A Process for producing polyferric sulfate |
| 01/28/1987 | EP0209755A2 Magnetooptic garnet |
| 01/28/1987 | CN85105994A Process for production of iron red product from iron-containing waste liquid |
| 01/27/1987 | CA1217097A1 Aqueous chemical suspension for pyrolytic deposition of metal-containing film |
| 01/15/1987 | DE3525013A1 Method for removing iron cations from an anode fluid |
| 01/14/1987 | EP0208195A2 Process for the preparation of magnetite pigments |
| 01/13/1987 | US4636433 Ferrite |
| 01/13/1987 | US4636248 Method for production of dielectric powder |
| 01/08/1987 | DE3620612A1 Cobalt-modified ferric oxide particles |
| 01/07/1987 | EP0207811A2 Mixed metal hydroxides for thickening water or hydrophylic fluids |
| 12/30/1986 | US4632843 Spherical single crystals; coating; tablets, capsules, seeding; aspirin, cirtric acid |
| 12/30/1986 | EP0206907A1 Process for the preparation of a colloidal dispersion of a metallic cation compound in an organic solvent and the sols obtained |
| 12/23/1986 | US4631140 Doped with cobalt; recording media |
| 12/23/1986 | US4631089 Color-intensive iron oxide black pigments and process for their production |
| 12/23/1986 | CA1215507A1 Production of ferrimagnetic spinel fibers |
| 12/16/1986 | US4629626 Hydrothermally treated product of compound having hydrotalcite-like crystal structure composition thereof, and use thereof |
| 12/16/1986 | US4629500 Use of novel rotary tubular kiln |
| 12/10/1986 | CN86101690A Improved method and appratus for treating pulp mill blak liquor |
| 12/03/1986 | EP0203470A2 Process for the production of particulate acicular hexagonal ferrites and their use in the production of magnetic-recording media and plastoferrites |
| 12/02/1986 | CA1214649A1 Process for the chlorination of oxidic materials |
| 11/26/1986 | EP0202824A2 Oxidation process |
| 11/26/1986 | EP0202567A2 Process for the preparation of black iron-based pigments |
| 11/25/1986 | US4624845 Process for preparing an iron oxide |
| 11/25/1986 | US4624843 Recovery of chlorine |
| 11/25/1986 | US4624837 Particulates and iron cyanide complex removal |
| 11/25/1986 | CA1214382A1 Method for regenerating pickling acids |
| 11/20/1986 | EP0201822A2 Process for the production of needle-shaped iron oxides containing cobalt |
| 11/18/1986 | US4623603 High electrical resistivity, long life |
| 11/12/1986 | EP0200992A2 Process for producing isometric iron oxides containing cobalt and titanium |
| 11/12/1986 | CA1213735A1 Chlorination of copper, lead, zinc, iron, silver and gold |
| 11/11/1986 | US4622159 Method for the preparation of fine hexagonal ferrite powders, in particular, for magnetic recording |
| 11/04/1986 | US4620879 Iron oxide yellow pigments having a low silking effect and a process for production thereof |
| 10/29/1986 | EP0198839A1 Ferrite electrostatographic toner carrier core |
| 10/22/1986 | EP0198436A2 Method for the preparation of isotropic magnetic cobalt containing iron oxides from ferric salts |