| Patents for C01G 49 - Compounds of iron (8,643) |
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| 10/04/1988 | US4775521 Melting sulfur from iron pyrites and steel or other iron source to form slag; low sulfur dioxide emission |
| 09/28/1988 | EP0283852A1 Pigments in the form of platelets based on iron oxide |
| 09/27/1988 | US4774072 Iron(iii) salts in alkaline suspension |
| 09/27/1988 | US4773938 Finely divided isometric hexaferrite pigments with a W-structure, processes for their preparation and their use |
| 09/27/1988 | CA1242314A1 Process for controlling ferrous iron content in manganese zinc ferrite |
| 09/21/1988 | EP0282619A1 Filiform corrosion-resistant primer coating composition and method for preventing filiform corrosion |
| 09/20/1988 | US4772660 Oxide sol using reactive monomer as dispersion medium |
| 09/13/1988 | US4770903 Ferric oxide core with a cobalt ferrite shell |
| 08/31/1988 | EP0280144A2 Use of citric-acid esters and of mixtures of these esters in extracting iron |
| 08/23/1988 | US4766284 Production of compounds by reaction of solid materials at high temperatures produced by plasma arc torches |
| 08/23/1988 | US4765920 High temperature process for producing fine magnetic particles of M-phase structure |
| 08/17/1988 | EP0278028A1 Process for producing acicular ferromagnetic metallic particles principally consisting of iron |
| 08/16/1988 | US4764429 Finely, divided, spherical, two-layer solid particles |
| 08/16/1988 | US4764300 Preparation of finely divided and acicular hexagonal ferrites and their use for the production of magnetic recording media and plastoferrites |
| 08/16/1988 | CA1240480A1 OPTICAL MATERIALS FROM INTERCALATION OF POLYVALENT CATIONS IN .beta. DOUBLE PRIME ALUMINA |
| 08/10/1988 | EP0277245A1 Process for producing complex oxide to be used for producing ferrite |
| 08/10/1988 | CN87107648A Process for making ferric chloride |
| 08/09/1988 | US4762961 Preparation of vanadium III oxidic compounds and dehydrogenation of paraffins |
| 08/09/1988 | US4762694 Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals |
| 08/03/1988 | EP0276765A2 Solid matter for the preparation of hexagonal ferrite |
| 08/02/1988 | US4761188 Coating with hydrotalcite solid solutions |
| 07/28/1988 | WO1988005337A1 Process for preparation of monodispersed barium containing ferrites |
| 07/19/1988 | US4758415 Process for removing soluble metal cations in iron oxide pigments |
| 07/19/1988 | US4758414 Iron or aluminum precipitation in strong acid systems |
| 07/06/1988 | EP0273440A2 Magnetic recording medium |
| 07/06/1988 | CN87108286A Preparation of superfine ferrous oxide |
| 07/05/1988 | US4755395 Preparation of acicular cobalt-containing ferrimagnetic iron oxides |
| 07/05/1988 | US4755315 Preparation of cobalt-containing isotropic magnetic iron oxides |
| 07/05/1988 | US4755026 Magnetooptic garnet |
| 06/29/1988 | EP0272932A2 Production of strontium ferrite magnets |
| 06/29/1988 | EP0272548A2 A process for obtaining ferric oxide and ammonium salts, and apparatus for carrying out said process |
| 06/28/1988 | US4753680 Precipitation of iron/ii/ salt, annealing, oxidation |
| 06/21/1988 | US4752407 Autoclauing iron, cobalt, barium titanium compounds with alkali metal hydroxide |
| 06/14/1988 | US4751070 Low temperature synthesis |
| 06/07/1988 | US4749506 Fine particle substance-containing microgel dispersions |
| 06/07/1988 | CA1237644A1 Process for treating and recovering pickling waste liquids for stainless steel |
| 06/01/1988 | EP0269361A2 Process for producing acicular iron alpha-oxyhydroxide particles |
| 05/31/1988 | US4748017 Method for manufacturing lepidocrocite |
| 05/31/1988 | US4747957 Brine treatment using ethylene carboxylic acid polymers |
| 05/31/1988 | US4747954 Ethylene-unsaturated acid copolymer |
| 05/26/1988 | DE3640245A1 Process for preparing alpha-FeOOH |
| 05/25/1988 | EP0268072A1 Platelet-shaped iron oxide pigments |
| 05/17/1988 | US4745129 Chemically-active aqueous solution and solid substance containing divalent iron ions |
| 05/11/1988 | CN86103643B Method of producing iron oxide black of ferrite oxide using the dust in the cheminey flue of steelmaking furnace as the raw material |
| 05/10/1988 | US4743431 Fluidization aid including low bulk density fluidization aid |
| 05/05/1988 | WO1988003308A1 A process for the preparation of magnetic hexaferrite particles, particles obtained and products containing them |
| 05/05/1988 | DE3729693A1 Process for preparing fine barium ferrite particles |
| 05/04/1988 | EP0265820A1 Platelet-shaped substituted iron oxide pigments |
| 05/03/1988 | US4741891 Selective catalyst for hydrocarbon conversion |
| 05/03/1988 | CA1235879A1 Two stage chlorination of titaniferous ore with fecl.sub.3 reclamation |
| 04/26/1988 | US4740419 Magnetic recording media |
| 04/26/1988 | CA1235578A1 Process for reducing metal ions in aqueous solutions |
| 04/19/1988 | US4738828 Fluidization aid including low bulk density fluidization aid |
| 04/12/1988 | US4737355 Preparation of vanadium III oxidic compounds, and dehydrogenation of paraffins |
| 04/06/1988 | EP0262534A2 Fine solid spherical particles with two layers |
| 03/30/1988 | EP0261590A2 Process for the preparation of metal oxides or mixed metal oxides |
| 03/30/1988 | EP0261456A1 Magnetic iron oxide pigments, and process for manufacturing them |
| 03/29/1988 | US4734136 Heat resistant yellow pigments, processes for their preparation and their use |
| 03/23/1988 | EP0260520A1 Magnetic iron oxide pigments, and process for manufacturing them |
| 03/17/1988 | DE3630254A1 Verfahren zur herstellung einer waessrigen eisen(iii)-salzloesung durch oxidation eines eisen(ii)-salzes in einer waessrigen loesung mit einer chlorhaltigen verbindung A process for the preparation of an aqueous iron (III) salt solution by oxidation of an iron (II) salt in an aqueous solution with a chlorine-containing compound |
| 03/16/1988 | EP0259975A1 Method for forming ferrite film |
| 03/15/1988 | US4731307 Methods for achieving the equilibrium number of phases in mixtures suitable for use in battery electrodes, e.g., for lithiating FeS2 |
| 03/15/1988 | US4731278 Magnetic recording medium |
| 03/10/1988 | WO1988001604A1 Process for oxidising ferrous salts |
| 03/08/1988 | US4729889 Hydrogen sulfide; refractory metal oxide support-binary metal oxide mix; mixed oxide of copper or manganese |
| 03/08/1988 | US4729846 Method for manufacturing lepidocrocite |
| 02/24/1988 | EP0256459A2 Process for producing an acicular ferrimagnetic iron oxide |
| 02/11/1988 | WO1988000925A1 Process for producing complex oxide to be used for producing ferrite |
| 02/09/1988 | US4724135 Preparation of high surface area mixed metal oxides |
| 02/03/1988 | EP0254917A2 A process for the production of ferrous sulphide |
| 01/28/1988 | DE3624920A1 Process for obtaining fine-grained, lamellar, chemically pure iron oxide from natural haematite specularite |
| 01/20/1988 | CN86100483B Process for producing poly-ferric-sulfate |
| 01/19/1988 | CA1231535A1 Process for the chlorination of oxidic materials |
| 01/19/1988 | CA1231517A1 Transparent iron oxide pigment |
| 01/14/1988 | WO1988000060A1 Biodegradable superparamagnetic materials used in clinical applications |
| 01/12/1988 | US4719127 Metal oxide film |
| 01/07/1988 | EP0251589A2 Synthesis of crystalline binary oxides |
| 12/23/1987 | EP0249843A1 Manufacturing process for black iron oxide pigments having high tinting strength, obtained by the nitrobenzenereduction method |
| 12/16/1987 | EP0249229A2 Superparamagnetic solid particles |
| 12/15/1987 | US4713261 Method for preparing ferromagnetic iron oxide particles |
| 12/15/1987 | US4713222 Iron removal from bayer process liquor |
| 12/09/1987 | CN86103643A Method of producing iron oxide black of ferrite oxide using the dust in the chimney flue of steelmaking furnace as the raw material |
| 12/02/1987 | EP0247987A1 A basic metal hydroxysulphate complex in solid form and a method for its manufacture |
| 12/02/1987 | EP0247681A1 Magnetic material, magnetic recording medium, and method of manufacturing a magnetic material |
| 11/25/1987 | EP0246501A1 Process for producing acicular magnetic iron oxides containing cobalt |
| 11/19/1987 | EP0059212B1 Magnesium aluminium spinels |
| 11/17/1987 | US4707349 Process of preparing a preferred ferric sulfate solution, and product |
| 11/10/1987 | US4705762 Process for producing ultra-fine ceramic particles |
| 11/10/1987 | US4705718 Magnetic recording medium |
| 11/05/1987 | DE3615027A1 Process for destroying organic halogen compounds, in particular chlorinated biphenyls, polychlorinated dioxins and polychlorinated furans |
| 11/04/1987 | EP0244243A1 removal of sulfur from process streams |
| 11/04/1987 | CN86107137A Iron-oxide pigment and its preparation method |
| 11/03/1987 | US4704199 Method of forming an iron oxide film by reacting sputtering with control of a glow discharge by monitoring an emission spectrum of iron from the glow discharge |
| 11/03/1987 | CA1228735A1 Hydrometallurgical method of extraction of copper from sulphide-containing material |
| 10/27/1987 | US4702776 Calcining ferrous sulfate hydrate containing manganese in the presence of alkali metal compound to give manganese-free pigment |
| 10/27/1987 | US4702775 Residence stage between precipitation and oxidation stages |
| 10/20/1987 | US4701221 Precipitation from waste water, concentration and ripening |
| 10/14/1987 | EP0240530A1 Particulate compositions of ferromagnetic metal oxalates in the form of submicronic needle shaped particles, preparation and application thereof. |
| 10/14/1987 | EP0240529A1 Compositions of particulate magnetic oxides with a structure of the lacunar spinel type, preparation and application thereof. |
| 10/13/1987 | CA1227920A1 Hydrothermally treated product of compound having hydrotalcite-like crystal structure, composition thereof, and use thereof |