| Patents for C01G 49 - Compounds of iron (8,643) |
|---|
| 08/11/1992 | US5137640 Contacting with Cu or compound, neutralizing, treating copper arsenate with ferric compound, separating ferric arsenate |
| 08/04/1992 | US5135733 Process for preparing hexaferrite particles |
| 07/28/1992 | US5134405 Electromagnetically anechoic chamber and shield structures therefor |
| 07/28/1992 | US5133955 Low temperature preparation of ultrafine oxide particles using organized reaction media |
| 07/28/1992 | US5133805 Plate-like hematite particles, a pigment comprising the same and showing a golden color, and a process for producing the same |
| 07/22/1992 | EP0495093A1 Interdispersed two-phase ferrite composite and electrographic magnetic carrier particles therefrom |
| 07/15/1992 | EP0294387B1 Method and apparatus for biological processing of metal-containing ores |
| 07/15/1992 | CN1062670A Fluoride produced method by powder containing ferric oxide, iron hydroxide purifying waste gas containing fluorine |
| 07/15/1992 | CN1017420B Process for the preparation of ferric oxide powder used for ferrite by utilizing smoke dust of oxygen blast open-hearth furnace |
| 07/14/1992 | US5129936 Processes for the preparation of acid fortified paramagnetic iron sulfate salt compounds for use in the treatment of agricultural soils |
| 07/01/1992 | EP0493023A1 Production of ferric chloride |
| 06/24/1992 | EP0490893A1 Method for separating interfering elements from valuable metal electrolyte solutions |
| 06/23/1992 | US5124207 Magnetic iron oxide particles |
| 06/23/1992 | CA1303815C Method for neutralization treatment of sulfuric acid containing iron ions |
| 06/17/1992 | CN1017101B Superconducting material and method of manufacturing same |
| 06/11/1992 | WO1992009530A1 Precipitation of heavy-metal ions |
| 06/09/1992 | CA1303011C Compound based on a spinelle structure oxide, its application as a catalyst and process for its preparation |
| 06/09/1992 | CA1302999C Finely divided iron oxide black pigments, a process for their preparation and their use |
| 06/03/1992 | EP0488157A2 Method and apparatus for the manufacture of iron oxide particles |
| 06/02/1992 | US5118659 Rare earth, alkaline earth and transition metal oxides, solubilizing, atomizing, calcining |
| 06/02/1992 | US5118575 Plate-like composite ferrite fine particles for magnetic recording and a process for producing the same |
| 06/02/1992 | US5118489 Production of concentrated aqueous solutions of ferric chloride |
| 05/27/1992 | EP0487479A2 A method for purifying iron oxide |
| 05/27/1992 | EP0487230A1 Spinel-type spherical black iron oxide particles and process for producing the same |
| 05/27/1992 | EP0486676A1 PROCESS USING SORBENTS FOR THE REMOVAL OF SO x? FROM FLUE GAS AND OTHER GAS STREAMS. |
| 05/27/1992 | DE4037326A1 Abtrennung von schwermetallionen Removal of heavy metal ions |
| 05/26/1992 | US5116587 Layered double hydroxide sorbents for the removal of sox from flue gas resulting from coal combustion |
| 05/26/1992 | US5116419 Cobalt |
| 05/20/1992 | EP0486236A1 Zinc sulfide optical elements |
| 05/20/1992 | EP0385991B1 Process for the production of iron oxide having high reactivity and high specific surface |
| 05/19/1992 | US5114898 Layered double hydroxide sorbents for the removal of SOx from flue gas and other gas streams |
| 05/19/1992 | US5114700 Electrically heated fluidized bed reactor and processes employing same |
| 05/19/1992 | US5114691 Process using sorbents for the removal of SOx from flue gas |
| 05/19/1992 | CA1301063C Biologically degradable superparamagnetic materials for use in clinicalapplications |
| 05/14/1992 | WO1992008227A1 Magnetic particles |
| 05/13/1992 | CN1061011A Non-chloridization method for making iron trichloride |
| 05/06/1992 | EP0483951A1 Process for producing acicular magnetic iron oxide particles for magnetic recording |
| 04/30/1992 | WO1992007114A1 Process for producing ferrate employing beta-ferric oxide |
| 04/30/1992 | WO1992006924A1 Process for producing monohydrated beta-ferric oxide and improved process for producing ferrate employing beta-ferric oxide |
| 04/30/1992 | WO1992006921A1 Synthetic porous crystalline material, its synthesis and use |
| 04/29/1992 | EP0482444A1 Process for preparing zinc oxide pigments doped with metal oxides |
| 04/28/1992 | US5108979 Synthetic spinels and processes for making them |
| 04/28/1992 | US5108481 Pelletized ferrous sulfate monohydrate product and method for making the same |
| 04/22/1992 | CN1016352B Process for preparing mixed metal hydroxides for thickening water or hydrophilic fluids |
| 04/21/1992 | US5106714 Spinel and magnetoplumbite phases; copiers |
| 04/21/1992 | CA1299005C Process for magnetic carrier particles |
| 04/21/1992 | CA1298954C Compound containing ferric ferrous salt and a producing method thereof |
| 04/15/1992 | CN1060278A Process for production of solid polyiron sulfate |
| 04/14/1992 | US5104761 Interdispersed three-phase ferrite composite and electrographic magnetic carrier particles therefrom |
| 04/02/1992 | WO1992005475A1 Interdispersed three-phase ferrite composite and electrographic magnetic carrier particles therefrom |
| 03/24/1992 | US5098685 Catalyst for the conversion of methanol to hydrocarbons |
| 03/17/1992 | US5096066 Beneficiating coal fines |
| 03/03/1992 | US5093100 Electromagnetic wave shields, toners, brown and black pigments |
| 03/03/1992 | US5093091 Oxidation to ferric form and precipitation with hydroxamated polymer |
| 02/25/1992 | US5091348 Mixing hydrated oxide sols, dehydrating to form homogeneous gel, heating |
| 02/20/1992 | WO1992002940A1 Method for producing magnetic microparticles from metallocenes |
| 02/20/1992 | WO1992002861A1 Interdispersed two-phase ferrite composite and electrographic magnetic carrier particles therefrom |
| 02/18/1992 | US5089222 Sintering mixture of metal sulfides, metallic molybdenum and molybdenum sulfide in inert gas containing reducing gas; superconductors |
| 02/18/1992 | US5089040 Reacting sulfate source with ferric ion source |
| 02/12/1992 | EP0470376A1 Rare earth/iron fluoride and methods for making and using same |
| 02/05/1992 | EP0469463A1 Metal-magnesium compounds, process for preparing same and the use thereof for the preparation of finely divided metal and alloy powders and intermetallic compounds |
| 02/05/1992 | EP0469418A1 Synthetic pigment having a tint of natural uncalcined umber, method of preparation and use |
| 02/04/1992 | US5085706 Synthetic pigment having the color of natural uncalcined umber and its use |
| 01/29/1992 | EP0277245B1 Process for producing complex oxide to be used for producing ferrite |
| 01/18/1992 | CA2045974A1 Rare earth/iron fluoride and methods for making and using same |
| 01/08/1992 | EP0464519A2 Process for the preparation of ocicular alfa-iron III oxide |
| 01/08/1992 | EP0422105A4 Metal oxide ceramic powders and thin films and methods of making same |
| 01/07/1992 | US5078984 Process for producing microcrystalline barium ferrite platelets |
| 01/07/1992 | US5078894 Formulations for iron oxides dissolution |
| 01/07/1992 | US5078887 Solvent extraction with solvents such as methyl isobutyl keton e in a countercurrent flow to the zirconium chloride solution for purification |
| 01/02/1992 | EP0380532B1 Preparation of thin layers of iron iii oxide for optical and/or magnetic recording |
| 12/31/1991 | US5076848 Process for the preparation of iron yellow pigments |
| 12/30/1991 | WO1992000078A1 Antiviral agents containing heteropolytungstate |
| 12/30/1991 | CA2086263A1 Antiviral agents containing heteropolytungstate |
| 12/27/1991 | EP0462344A1 Method for producing composite oxides for use ad starting materials for ferrites |
| 12/25/1991 | CN1057211A Process using sorbents for removal of sox from flue gas and other gas streams |
| 12/24/1991 | US5075089 Calcining, forming intercalation compound with chromate, molybdates, vavadates, tungstates, or silicates |
| 12/17/1991 | US5073359 Process for manufacturing ceramic magnetic material |
| 12/17/1991 | US5073337 Rare earth/iron fluoride and methods for making and using same |
| 12/11/1991 | EP0460714A2 Preparation process for polar and apolar superparamagnetic fluids |
| 12/10/1991 | US5071827 Production of superconductor materials |
| 12/10/1991 | US5071516 Electrolytic oxidation and reduction |
| 12/10/1991 | US5071076 Slurrying with metal hydroxide, milling |
| 12/09/1991 | WO1991018835A1 Ethylene sorbing substances |
| 12/09/1991 | WO1991018667A1 PROCESS USING SORBENTS FOR THE REMOVAL OF SOx FROM FLUE GAS AND OTHER GAS STREAMS |
| 12/09/1991 | CA2082639A1 Ethylene sorbing substances |
| 12/09/1991 | CA2064715A1 Process using sorbents for the removal of sox from flue gas and other gas streams |
| 12/04/1991 | EP0370067B1 Preparation of thin layers of iron iii oxide for optical and/or magnetic recording |
| 12/04/1991 | CN1056668A Iron oxide yellow made method by wash iron waste acid liquid |
| 11/27/1991 | EP0220026B1 Silica or alumina sol using reactive monomer as dispersion medium |
| 11/23/1991 | WO1991017957A1 Ferrous salt composition |
| 11/20/1991 | CN1056295A Process for preparing ferro-type aluminium iron polychloride purifier |
| 11/14/1991 | WO1991017124A1 New formulations for iron oxides dissolution |
| 11/13/1991 | EP0455718A1 Method and apparatus for making polycrystaline flakes of magnetic materials having strong grain orientation |
| 11/12/1991 | US5064632 Supplying reactive carbon |
| 11/05/1991 | US5062983 Magnetic powder for magnetic recording media |
| 11/05/1991 | US5062982 Coercive force! |
| 10/31/1991 | WO1991016705A1 Method for making magnetic oxide precipitates |
| 10/30/1991 | CN1014511B Preparation for submicron particle of ferriferous oxide |
| 10/29/1991 | US5061682 Anionic oxidation-reduction reaction; high temperature superconductors |