| Patents for C01F 17 - Compounds of the rare-earth metals, i.e. scandium, yttrium, lanthanum, or the group of the lanthanides (4,902) |
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| 08/25/1994 | DE4321812A1 Luminescent substance (phosphor, luminophore) emitting blue light for use in fluorescent lamps, and fluorescent lamp utilising this substance |
| 08/24/1994 | EP0611727A1 Method for the preparation of coprecipitated carbonate of lanthanum, cerium and terbium |
| 08/24/1994 | CN1091149A Blue-emitting phosphor for use in fluorescent lamps and fluorescent lamp employing the same |
| 08/16/1994 | US5338520 Recovery of neodymium/didymium values from bastnaesite ores |
| 08/11/1994 | DE4321783A1 Green-emitting phosphorescent substance for use in fluorescent lamps |
| 08/03/1994 | CN1025570C Process for extracting high purity Eu by reduction-extraction |
| 07/27/1994 | CN1089968A Epoxy unsaturated high-grade fatty acid rare earth non-toxic stabilizing agent |
| 07/26/1994 | US5332558 Rare earth oxide powder and method for the preparation thereof |
| 07/26/1994 | US5332531 Complexing |
| 07/19/1994 | US5330731 Process for separation of zirconium-88, rubidium-83 and yttrium-88 |
| 07/06/1994 | EP0604919A1 Deodorant |
| 06/29/1994 | CN1025222C Method for prepn. of fluorescence grade europium sesquioxide |
| 06/23/1994 | WO1994013845A1 Process for extracting rare-earth elements from phosphate ore |
| 06/07/1994 | US5318797 Coated particles, hollow particles, and process for manufacturing the same |
| 06/01/1994 | EP0599717A1 Aggregate of cristallites of cerium oxide, process for obtaining it and use in the reduction of combustion residues |
| 05/17/1994 | CA1329486C Process for recovery of rare metals |
| 05/17/1994 | CA1329463C Metal oxide ceramic powders and thin films and methods of making same |
| 05/11/1994 | WO1994010084A1 Precursors and processes for making metal oxides |
| 05/11/1994 | CN1086493A Preparation method for cerium trisulfide |
| 05/11/1994 | CA2145878A1 Precursors and processes for making metal oxides |
| 05/04/1994 | CN1086267A Method for preparing high-purity yttrium oxide |
| 05/03/1994 | US5308548 Preparing a dispersible, sol-forming cerium (IV) composition |
| 04/20/1994 | EP0592998A1 Method for the preparation of pellets of metal halide |
| 04/13/1994 | CN1085262A Rare-earth stainless steel and its smelting process |
| 04/13/1994 | CN1085261A Wear-resistant low-alloy steel |
| 04/12/1994 | US5302319 Preparation of sol gel composition for electrophoresis |
| 04/12/1994 | CA1328422C Process for the electrochemical oxydation in an emulsion of cerium 3+ into cerium 4+ |
| 03/23/1994 | EP0588691A1 Ceric oxide containing composition, its preparation and its use |
| 03/09/1994 | CN1083543A Vapour-deposition material for the production of optical coatings of medium refractive index |
| 03/09/1994 | CN1083540A Rare earth boron complex alloy wear-resisting cast iron |
| 03/03/1994 | WO1994004459A1 Preparation of nanophase solid state materials |
| 02/15/1994 | US5286688 Rare earth oxide powder |
| 02/09/1994 | CN1081742A Rare earth surface treatment technology for piston and piston ring |
| 02/02/1994 | EP0580619A1 Process for producing hydrophobised double-layer hydroxide compounds. |
| 01/28/1994 | CA2074666A1 Germanium compounds |
| 01/25/1994 | CA1326348C Nuclear fuel pellet production process, including production and use of flowable and sinterable powders obtained directly by peroxide deposits |
| 01/20/1994 | WO1994001527A1 Compounds and methods for separation and molecular encapsulation of metal ions |
| 01/18/1994 | US5280002 Mixture of magnesium, boron, gallium, scandium oxide |
| 01/18/1994 | US5279801 Vapor phase; reacting rare earth (or transition metal) compound with a carbon-sulfur compound in a hermetic sealed enclosure |
| 01/18/1994 | US5279789 Ceric oxide particulates having improved morphology |
| 01/11/1994 | US5277845 Rare earth epitaxial wafer |
| 12/28/1993 | US5274129 Hydroxamic acid crown ethers |
| 12/22/1993 | EP0574785A1 Process for producing evaporation material for preparation of medium refractive index optical films |
| 12/18/1993 | CA2098447A1 Vapour-deposition material for the production of optical coatings of medium refractive index |
| 12/15/1993 | EP0573610A1 Synthetic spinels and processes for making them. |
| 12/09/1993 | WO1993024411A1 A method for preparing mixed metal oxides |
| 12/09/1993 | CA2136525A1 A method for preparing mixed metal oxides |
| 12/01/1993 | EP0571717A1 Manufacturing of zinc-alkaline batteries |
| 11/30/1993 | US5266282 Selective liquid/liquid extraction of yttrium from other rare earths values |
| 11/24/1993 | CN1078751A Process for cerium oxide |
| 11/17/1993 | CN1078498A Preparation method for compound rare earth chloride |
| 11/03/1993 | CN1077993A Fluoride method for recovering Nd-Fe-B rare earth permanent magnet spent material |
| 11/02/1993 | US5258167 Extractant for rare earth metal and method for extracting the same |
| 10/27/1993 | EP0395667B1 Continuous process for production of fine particulate ceramics |
| 10/26/1993 | US5256383 Process for the separation of actinides from lanthanides by the selective extraction of the actinides in an organic solvent incorporating a propane diamide |
| 10/19/1993 | CA1323359C Ceric oxide with new morphologic characteristics and process for its preparation |
| 10/19/1993 | CA1323200C Rare earth separation process |
| 10/05/1993 | CA1322635C Fluoride ion-selective electrodes based upon superionic conducting ternary compounds and methods of making |
| 09/16/1993 | WO1993017959A1 Production of transparent cationically homogeneous refractory oxides of nanometer-scale particle size diameters at reduced temperatures |
| 09/15/1993 | CN1076175A Process and device for producing manganese dioxide and rare-earth oxide simultaneously |
| 08/11/1993 | CN1075171A Production process of cerium hydroxide |
| 07/27/1993 | US5231076 Process for manufacturing a YBa2 Cu3 Ox superconductor using infiltration-reaction technique |
| 07/21/1993 | CN1074487A Emulsion-removing method in the process of extraction |
| 07/14/1993 | CN1021579C Process for separating cerium dioxicde from mixed rare earth |
| 07/07/1993 | CN1073983A Technology for raising yield rate of rare-earth products produced with sulfuric acid process |
| 07/06/1993 | US5225173 Chelation, crown ethers |
| 06/30/1993 | EP0548434A1 Rare earth oxide powder and method for the preparation thereof |
| 06/29/1993 | US5223232 Solvent extraction of solutions from irradiated nuclear fuel reprocessing plants |
| 06/23/1993 | EP0547924A1 Composition containing ceric oxide, its preparation and use |
| 06/23/1993 | CN1073487A Process for the extraction of cerium from an aqueous solution of a mixture of rare-earth elements |
| 06/09/1993 | EP0545746A1 Compositions based on rare earth sulfides, preparation and use thereof |
| 06/08/1993 | US5217647 Baking lanthanum oxide and sulfiding agent, seeding; narrow particle size distribution |
| 06/05/1993 | WO1993011113A1 Process for the selective extraction of actinides (iii) by means of nitrogenous heterocyclic substituant amides |
| 05/12/1993 | EP0541158A1 Process for extracting cerium from an aqueous solution containing a mixture of rare earth elements |
| 05/12/1993 | EP0333757B1 Process for the chromatographic separation of metal ions |
| 05/05/1993 | EP0540228A1 Alumina-containing catalyst, method for the preparation thereof and internal combustion engine exhaust system containing said catalyst |
| 05/05/1993 | CN1071706A Cerium oxide purifying process |
| 05/04/1993 | US5207995 Recovery of cerium from fluoride-containing ores |
| 05/04/1993 | US5207973 Atomizing drops of aqueous solution by pulsed electric field; forming metal hydroxide; drying |
| 05/04/1993 | CA1317086C Rare earth oxide particulate compositions, preparation and uses thereof |
| 04/28/1993 | EP0332686B1 Process for preparing metallic oxides |
| 04/21/1993 | CN1071204A Method for preparation of pure neodymium oxide |
| 04/21/1993 | CN1071144A Method for preparation of white ceric oxide |
| 04/20/1993 | US5204077 Pollucite crystalline powders with low thermal expansion coefficients and methods for their preparation |
| 04/14/1993 | EP0265518B1 Congruently melting complex oxides |
| 04/13/1993 | CA1316176C Process for preparing colloidal alcohol-dispersible association complexes of ceric dioxide and a hydroxyphenyl carboxylic acid and complexes thereof with free organic acids |
| 03/31/1993 | CN1070427A Preparation of high pure oxide by column extraction |
| 03/24/1993 | CN1070166A Process for preparing rare earth carbonate |
| 03/09/1993 | US5192443 Using phosphorous oxide derivatives as extractants for rare earth nitrates |
| 02/23/1993 | US5188735 Separation of rare earth values by liquid/liquid extraction |
| 02/17/1993 | EP0527685A1 Process for the separation of the actinides from lanthanides by selective extraction of the actinides in an organic solvent comprising a propane diamide |
| 02/16/1993 | US5186866 Oxide garnet single crystal |
| 01/20/1993 | EP0523696A1 Mixed ionic conductors and the preparation thereof |
| 01/13/1993 | EP0522234A1 Method for extracting rare-earth elements from phosphate ore |
| 01/12/1993 | US5178664 Essentially anhydrous admixtures of dehydrated rare earth halides and alkali/alkaline earth metal halides |
| 01/05/1993 | US5177055 Oxidation of metal salt |
| 01/05/1993 | US5176890 Direct recovery from reaction with rare earth halide and boron |
| 12/30/1992 | CN1019639B Solvent extraction |
| 12/29/1992 | US5174984 Large specific surface at high temperatures |
| 12/09/1992 | EP0517554A1 Cerium oxide containing composition, the preparation thereof and the uses thereof |