| Patents for C01G 56 - Compounds of transuranic elements (403) |
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| 05/02/1995 | US5411149 Aqueous biphasic extraction process with pH and particle control |
| 04/25/1995 | US5409678 Separations of actinides, lanthanides and other metals |
| 03/07/1995 | US5395532 Mixing hydrolyzable alkoxy compound containing silicon with solubilized metal to form metal silicate particles, precipitating particles from organic phase, drying and sintering precipitate |
| 01/25/1995 | EP0635846A1 Method for manufacturing nuclear fuel pellet |
| 01/24/1995 | US5384017 Method of producing metal hydroxides |
| 10/27/1994 | WO1994024138A1 Calix|4|arene crown ethers, method for preparing same, and use thereof for the selective extraction of caesium and actinides |
| 10/18/1994 | US5356605 Recovery of UO2 /Pu O2 in IFR electrorefining process |
| 06/09/1994 | WO1994012502A1 Bis-crown calix[4]arenes, method for preparing same and use thereof for selectively recovering cesium and actinides |
| 03/30/1994 | EP0589076A1 Process for the preparation of UO2 or U/PO2 powder |
| 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 | WO1994001190A1 Recovery of metal values from process residues |
| 01/20/1994 | CA2139642A1 Recovery of metal values from process residues |
| 12/15/1993 | CA2070935A1 Combined transuranic-strontium extraction process |
| 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 |
| 09/08/1993 | EP0559590A1 Process for obtaining metallic hydroxides |
| 06/29/1993 | US5223232 Solvent extraction of solutions from irradiated nuclear fuel reprocessing plants |
| 06/05/1993 | WO1993011113A1 Process for the selective extraction of actinides (iii) by means of nitrogenous heterocyclic substituant amides |
| 05/26/1993 | CN1072461A Combined transuranic-strontium extraction process |
| 03/17/1993 | EP0379565B1 Process to separate transuranic elements from nuclear waste |
| 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 |
| 12/08/1992 | US5169609 Using crown ether and an alkyl(phenyl-)-N,N-dialkylcarbamoyl-methylphosphine oxide, strip with tetrahydrofuran-2,3,4,5-tetracrboxylic acid |
| 09/23/1992 | EP0505277A1 Method for separating iron and/or zirconium from actinides and/or lanthanides present in an aqueous acid solution using a propane diamide |
| 08/04/1992 | US5135728 Heating nitric acid, hydroxylammonium nitrate and fluoride immersing metal |
| 07/21/1992 | US5132092 Process for the extraction of uranium (vi) and/or plutonium (iv) present in an acid aqueous solution by means of a mixture of n,n-dialkyl amides usable for the reprocessing of irradiated nuclear fuels |
| 07/07/1992 | US5128112 Low temperature decomposition of organometallic intermediate |
| 05/12/1992 | US5112581 Method of separating uranium and plutonium from mixed solution containing uranium and plutonium |
| 03/24/1992 | US5098682 Reduction from oxidation +4 to +3, evaporation of solvent and dehydration by heating with thionyl chloride |
| 03/24/1992 | US5098677 Oxidation of actinides with hypochlorite and forming acetinide oxide nitrate used for disposal and storage |
| 02/11/1992 | US5087606 Bismuth-containing superconductors containing radioactive dopants |
| 02/04/1992 | US5085834 Method for separating by using crown compounds plutonium from uranium and from fission products in the initial stages for the reprocessing of irradiated nuclear fuels |
| 01/21/1992 | US5082602 Process and apparatus for regenerating spent reprocessing extraction solvent |
| 12/04/1991 | EP0459155A1 Bismuth-containing superconductor |
| 12/03/1991 | US5069827 Process for reducing and dissolving puo2 |
| 11/30/1991 | CA2034402A1 Bismuth-containing superconductor |
| 10/23/1991 | CN1055619A Method for separating by using crown compounds plutonium from uranium and from fission products in initial stages for reprocessing of irradiated nuclear fuels |
| 08/27/1991 | CA1287969C Process to prepare soluble mixed oxydes in nitric acid from nitrate solutions |
| 06/26/1991 | EP0434513A1 Method for separating plutonium and uranium from fission products using crown ethers, in the first stages of treating irradiated nuclear fuel |
| 06/16/1991 | CA2031750A1 Method for separating by using crown compounds plutonium from uranium and from fission products in the initial stages for the reprocessing of irradiated nuclear fuels |
| 01/08/1991 | US4983300 Process for the reextraction in aqueous solution of the plutonium present in an organic solvent, more particularly usable for splitting uranium and plutonium |
| 11/20/1990 | US4971734 Method of making nuclear fuel pellets, comprising producing and using pourable, frittable powders obtained directly by precipitation of peroxides |
| 08/08/1990 | EP0381579A1 Method of extracting uranium (VI) and/or plutonium (IV) present in an aqueous acid solution by means of a mixture of N,N-dialkyl amides, for use in the reprocessing of irradiated nuclear fuels |
| 07/03/1990 | US4938871 Method for the recovery of actinides and/or lanthanides using novel extraction agents, and novel propane diamides, and the preparation thereof |
| 06/26/1990 | USRE33243 Process for treating a metal oxide powder |
| 05/08/1990 | US4923639 Method of processing plutonium and/or uranyl nitrate |
| 01/30/1990 | CA1264920A1 Preparation of powdered metallic oxides from metallic nitrates |
| 01/25/1990 | WO1990000524A1 Process to separate transuranic elements from nuclear waste |
| 01/17/1990 | EP0351334A1 Process for manufacturing nuclear fuel pellets comprising the production and the use of flowable and frittable powders directly obtained by precipitating peroxides |
| 10/03/1989 | US4871479 Thermally denitrating mixture of nitrate solutions, calcing oxide, pulverization, stabilization; minimizing aerosol production |
| 08/23/1989 | EP0328742A1 Process for the preparation of nuclear fuel mixed oxides from a nitrate solution |
| 06/21/1989 | EP0321348A1 Process for re-extracting in an aqueous solution plutonium contained in an organic solvent, for use, for instance, in uranium-plutonium separation |
| 06/13/1989 | US4839149 Ammonium plutonate uranate, its preparation process and its use for producing the mixed oxide (U,Pu)O2 |
| 06/13/1989 | US4839103 In an airtight vessel by condensing vapors of nitric acid |
| 05/30/1989 | US4835107 Method for the concentration and separation of actinides from biological and environmental samples |
| 04/19/1989 | EP0312433A1 Process for the reductive dissolution of Pu02, for use in the treatment of organic wastes contaminated by Pu02 |
| 04/19/1989 | EP0311856A1 Thermal treatment for solid bulk material of heavy metal compounds, particularly uranium, plutonium and/or thorium compounds, and the treatment vessel |
| 03/21/1989 | US4814046 Process to separate transuranic elements from nuclear waste |
| 03/01/1989 | EP0305262A1 Ammonium uranate plutonate, process for its preparation and its use in preparing a mixed oxide of uranium/plutonium |
| 11/08/1988 | US4783322 Method for fluorination of actinide fluorides and oxyfluorides thereof using O2 F2 |
| 09/27/1988 | US4774026 Semiconductor photocatalyst, electromagnetic waves |
| 09/20/1988 | US4772429 Reprocessing nuclear fuels |
| 09/13/1988 | US4770807 Novel extraction agents and novel propane diamides |
| 08/16/1988 | US4764352 Process for preventing the extraction of technetium and/or rhenium, particularly during the extraction of uranium and/or plutonium by an organic solvent |
| 07/12/1988 | US4756853 Dissolving residue with water or nitric acid, separating sulfate ions |
| 06/08/1988 | EP0270453A1 Process for separating the technetium contained in an organic solvent comprising zirconium and at least one other metal such as uranium or plutonium, especially for use in reprocessing irradiated nuclear fuels |
| 06/07/1988 | US4749519 Oxidizing with silver oxide, dissolving dechlorination, extraction |
| 05/05/1988 | WO1988003044A1 Method for the concentration and separation of actinides from biological and environmental samples |
| 05/03/1988 | US4741894 Method of producing halide-free metal and hydroxides |
| 05/03/1988 | US4741810 Process for reductive plutonium stripping from an organic reprocessing solution into an aqueous, nitric acid solution by use of an electrolytic current |
| 02/16/1988 | US4725413 Process for selective separations of plutonium from uranium and other metals |
| 02/09/1988 | US4724127 Method for recovery of actinides from refractory oxides thereof using O.sub. F2 |
| 01/07/1988 | EP0251432A2 Method of producing halide-free metal oxides |
| 01/07/1988 | EP0251399A1 Process for separating or recovering plutonium, and plutonium obtained thereby |
| 12/15/1987 | CA1230310A1 Dissolution of puo.sub.2 or npo.sub.2 using electrolytically regenerated reagents |
| 12/01/1987 | US4710222 Method for removal of plutonium impurity from americium oxides and fluorides |
| 09/30/1987 | EP0239512A1 Process for obtaining mixed fritted oxides soluble in nitric acid from nitrate solutions |
| 09/02/1987 | EP0234199A1 Process for obtaining a solution of almost non-soluble nuclear fuel, particularly of plutonium oxide or a mixed oxide of uranium/plutonium |
| 08/26/1987 | EP0233498A2 Process and apparatus of photoelectrocalalytically reducing noble metals in a nitric acid solution |
| 08/18/1987 | US4687601 Process for the preparation of pulverulent metallic oxides from metallic nitrates |
| 07/28/1987 | US4683124 Actinide recovery process |
| 07/15/1987 | EP0228940A1 Process for extracting uranium and/or plutonium IV from an aqueous solution by means of N,N-dialkylamides |
| 07/15/1987 | EP0228679A2 Process for selectively separating plutonium from uranium and other metals |
| 07/08/1987 | EP0228051A2 Process for selectively separating plutonium from uranium and other metals |
| 06/03/1987 | EP0224277A2 Process for selectively separating plutonium from uranium and other metals |
| 06/02/1987 | US4670239 Photochemical preparation of plutonium pentafluoride |
| 05/05/1987 | US4663093 Preparation of nuclear fuel spheres by flotation-internal gelation |
| 04/28/1987 | CA1220934A1 Method for treating plutonium oxide and/or plutonium- uranium mixed oxide |
| 04/22/1987 | EP0218854A2 Process and apparatus for regenerating spent reprocessing extraction solvent |
| 04/21/1987 | US4659551 Process for separation of neptunium from an organic phase in the recovery of irradiated fuel and/or fertile materials |
| 02/04/1987 | EP0210928A1 Extracting agents and propane diamides, their use to recover actinides and/or lanthanides and process for their preparation |
| 02/04/1987 | EP0210443A1 Method for recovering americium from irradiated nuclear-fuel waste |
| 01/14/1987 | EP0208586A1 Process to prevent extraction of technetium and/or rhenium, particularly in case of the extraction of uranium and/or plutonium by means of an organic solvent |
| 01/07/1987 | CN85105352A Method for recovering ac series elements from radioactive waste liq. |
| 10/14/1986 | US4617158 Process for treating a metal oxide powder |
| 10/07/1986 | US4615834 Process and apparatus for producing microspheres of fissile and/or fertile materials |
| 09/02/1986 | US4609533 Process for selective separation of plutonium from uranium and other metals |
| 07/22/1986 | US4601889 Adsorption by an acrylic polymer, uranium from seawater |
| 06/18/1986 | EP0184677A1 Process for the preparation of uranium and/or plutonium from a nitric or sulfuric solution |
| 05/27/1986 | US4591488 Forming nitrato complexes of plutonium and uramium and sulfato complexes of plutonium and uranium oxide |
| 05/06/1986 | US4587107 With jojoba oil |
| 03/04/1986 | US4574072 Method for extracting lanthanides and actinides from acid solutions by modification of purex solvent |