| Patents for C01F 17 - Compounds of the rare-earth metals, i.e. scandium, yttrium, lanthanum, or the group of the lanthanides (4,902) |
|---|
| 07/31/1984 | US4462974 Process for preparation of water-free oxide material |
| 07/31/1984 | US4462970 Exposure of oxide to chlorine and oxygen to cxhlorinate and remove water impurities |
| 07/24/1984 | US4461750 Infrared window materials and their fabrication |
| 07/24/1984 | US4461748 Using organophosphorus compounds |
| 07/03/1984 | CA1170032A1 Method for improved decomposition of metal nitrate solutions |
| 06/13/1984 | EP0110789A1 Process for recovering actinides and/or lanthanides present in their trivalent state in an aqueous acidic solution |
| 06/05/1984 | CA1168546A1 Compounds |
| 05/23/1984 | EP0109327A1 Process for the complete recovery of uranium, yttrium, thorium and rare earth metals from a phosphate ore while preparing wet process phosphoric acid |
| 05/15/1984 | US4448694 Metal extraction from solution and immobilized chelating agents used therefor |
| 05/09/1984 | EP0108015A2 Process for recuperating heavy metals from acid solutions |
| 05/01/1984 | CA1166600A1 Process for preparing ceric sulphate |
| 03/20/1984 | US4438078 Forming the oxalate of gadolinium, precipitation, pyrolysis; elution of filtrate, precipitation of oxalate, pyrolysis |
| 02/21/1984 | US4432948 Adding hydrogen peroxide, passing through cation exchange column, acid stripping, precipitation with oxalic acid, and firing to give yttrium and europium oxides |
| 02/15/1984 | EP0100709A1 Highly soluble cerium sulfate |
| 01/04/1984 | EP0097563A1 Process for the preparation of colloidal dispersions of cerium dioxide in organic liquids |
| 11/29/1983 | US4417965 Method of treating a rare-earth mineral |
| 11/16/1983 | EP0094132A1 Luminescent screen |
| 10/25/1983 | US4411793 Process for the separation of elements by chromatography |
| 10/11/1983 | US4409157 Method for improved decomposition of metal nitrate solutions |
| 09/20/1983 | US4405568 Recovery of gadolinium and gallium oxides |
| 09/01/1983 | WO1983002962A1 Monocrystalline material on basis of aluminium garnets |
| 08/23/1983 | US4400360 Recovery of gadolinium and gallium oxides |
| 08/17/1983 | EP0086056A1 Process for preparation of ultrapure thorium fluoride |
| 08/10/1983 | EP0085152A1 Recovery of gadolinium and gallium oxides |
| 07/19/1983 | US4394353 Complexing agent |
| 06/29/1983 | EP0082570A1 Luminescent screen |
| 06/28/1983 | US4390507 Process for recovering yttrium and lanthanides from wet-process phosphoric acid |
| 06/14/1983 | CA1147943A1 Method of manufacture of polycrystalline garnet, polycrystalline garnet and corresponding simple crystal |
| 06/14/1983 | CA1147942A1 Method of manufacture of polycrystalline garnet including aluminum and/or gallium and/or indium and at least one element of the group consisting of rare earth and yttrium, and corresponding simple crystals |
| 06/07/1983 | US4387077 Process for the recovery of substantially radium free calcium sulphate, yttrium and lanthanides, as well as calcium sulphate, yttrium and lanthanides obtained by this process |
| 05/31/1983 | US4386056 Ion exchanging, precipitation of oxalates |
| 05/24/1983 | CA1146761A1 Treatment for rare earthes and gallia oxides mixtures |
| 05/18/1983 | EP0079258A1 Process for extracting and separating uranium, thorium and rare earths by treating aqueous solutions of the chlorides of said elements |
| 05/04/1983 | EP0078098A2 Cerium compounds |
| 04/19/1983 | CA1144743A1 Ce-doped yttrium aluminum garnet and devices incorporating same |
| 03/01/1983 | US4375453 Recovery of gadolinium and gallium oxides |
| 01/19/1983 | EP0070226A1 Process for separating trivalent actinides from trivalent lanthanides in an acidic aqueous solution |
| 12/01/1982 | EP0065863A2 Method of producing ceramic-forming metal hydroxide and oxide powders |
| 12/01/1982 | EP0021990B1 Process for treating mixtures of rare earth oxides and gallium oxides |
| 10/26/1982 | US4356106 Cerium compounds |
| 10/12/1982 | CA1133231A2 Rare earth or yttrium, transition metal oxide thermistors |
| 09/21/1982 | US4350559 Process for the manufacture of polycrystalline garnet and corresponding monocrystal |
| 09/21/1982 | US4350558 Process for the manufacture of polycrystalline garnet and corresponding monocrystals |
| 08/10/1982 | CA1129211A1 Recovery and separation of gadolinium and gallium |
| 06/30/1982 | EP0054993A1 Process for the recovery of practically radium-free calcium sulphate, yttrium and lanthanides |
| 06/30/1982 | EP0054969A1 A process for the separation of elements by chromatography |
| 06/01/1982 | CA1124506A1 Process for purifying rare-earth compositions using fractional sulfate precipitation |
| 04/27/1982 | CA1122420A1 Rare earth separation process |
| 01/27/1982 | EP0044516A1 Phosphor and radiation image storage panel utilizing the same |
| 01/13/1982 | EP0043776A1 Alumina-based mixed oxide compounds, manufacturing process and use thereof |
| 01/13/1982 | EP0043765A1 Process for separating trivalent actinide and lanthanide values from an aqueous acid solution |
| 12/30/1981 | EP0042747A1 Method of treating rare-earth minerals or concentrates |
| 11/04/1981 | EP0039119A1 Process for recovering yttrium and lanthanides from wet-process phosphoric acid |
| 10/27/1981 | US4297584 Stabilization of cerium-activated oxybromides of yttrium, lanthanum, and gadolinium with a moisture-protective coating of the oxychloride |
| 10/20/1981 | US4296056 Basalt or lava sintered and molded with borax, sodium metasilicate or potassium metasilicate |
| 06/16/1981 | CA1102998A1 Process for recovering iron, nickel, and cobalt from their sulfide ores |
| 06/10/1981 | EP0030170A1 Process for the production of polycrystalline garnet |
| 06/09/1981 | CA1102524A1 Process for making rare earth metal chlorides |
| 05/20/1981 | EP0028963A1 Process for producing polycrystalline garnet comprising aluminium and/or gallium and/or indium and at least one element of the group constituted by the rare earths and yttrium, polycrystalline garnet thus obtained |
| 05/05/1981 | US4265862 From radioactive impurities |
| 04/21/1981 | US4263164 Method of preparing a luminescent aluminate |
| 03/31/1981 | CA1098302A1 Rare earth phosphors and phosphor screens |
| 03/24/1981 | CA1097925A1 Method for the recovery of actinide elements from nuclear reactor waste |
| 03/10/1981 | US4255394 Process for the separating of rare earths |
| 01/07/1981 | EP0021990A1 Process for treating mixtures of rare earth oxides and gallium oxides |
| 12/09/1980 | US4238467 From yttrium oxalate crystals |
| 11/04/1980 | US4231997 Preparation of rare earth nitrates |
| 11/04/1980 | US4231893 Process for preparing aqueous dispersion of ceria and resulting product |
| 09/30/1980 | CA1086489A1 Luminescent fluoride and luminescent screen provided with such a fluoride |
| 08/20/1980 | EP0014553A1 Process for purifying rare-earth compositions |
| 07/22/1980 | CA1081969A1 Recovery of transplutonium elements from nuclear reactor waste |
| 05/06/1980 | US4201739 Manufacture of metal halide particles |
| 04/15/1980 | US4198231 Recovery and separation of gadolinium and gallium |
| 02/19/1980 | US4189326 Magnesium aluminum oxide |
| 12/18/1979 | US4179492 Fused salt bath; ferric chloride; alkali, alkaline earth, zinc or ammonium chloride |
| 12/11/1979 | US4178187 Mixed oxide compound NdAlO3 for casting advanced superalloy materials |
| 09/19/1979 | EP0004226A1 Process for separating elements in the group consisting of the lanthanides and yttrium |
| 09/11/1979 | CA1061989B Production of ceria |
| 08/07/1979 | CA1059747A1 Method of producing a luminescent alkaline earth metal fluorohalide activated by bivalent europium |
| 07/24/1979 | US4162230 Method for the recovery of actinide elements from nuclear reactor waste |
| 05/17/1979 | WO1979000248A1 Production of dispersions |
| 02/20/1979 | US4140771 Precipitation of hydroxides, washing with polar and nonpolar solvents, calcining |
| 01/09/1979 | CA1045807A1 Method of manufacturing a rare-earth aluminate, particularly a luminescent rare-earth aluminate |
| 10/10/1978 | CA1039942A1 Process for reclaiming rare earth oxysulfide phosphor material |
| 09/26/1978 | CA1039156A1 Doped beryllium lanthanate crystals |
| 08/22/1978 | US4108676 Lanthanum oxide, aluminum oxide |
| 08/08/1978 | US4105747 Method for dehydrating metal chlorides |
| 08/01/1978 | US4104358 Selective extraction of yttrium ions |
| 05/16/1978 | US4089799 Luminescent fluoride |
| 12/27/1977 | US4065544 Finely divided metal oxides and sintered objects therefrom |
| 10/11/1977 | US4053551 Fusing the glass with sodium hydroxide then slurrying in water, reacting with nitric acid, then oxalic acid |
| 09/27/1977 | US4051219 Sequestering fluoride ions with boric acid |
| 09/20/1977 | US4049463 Method for producing a pure cerium oxide |
| 09/13/1977 | US4048026 Process for the enrichment of europium chloride |
| 08/09/1977 | US4041125 Process for separation of the lanthanides |
| 05/24/1977 | US4025602 Oxalate precipitation, ion exchanging |
| 05/17/1977 | US4024070 Rubidium, cesium, potassium fluorides |
| 05/10/1977 | US4023059 High pressure light emitting electric discharge device |
| 04/05/1977 | US4016237 Process for separation of the rare earths by solvent extraction |
| 03/01/1977 | US4010000 Controlled particle size |