C01G 56 - Compounds of transuranic elements

Patents for C01G 56 - Compounds of transuranic elements (403)
02/2007
02/06/2007	US7172741 Forming high purity uranium, plotonium; reuse; fluorination of nuclear fuels; then oxidation
01/2007
01/30/2007	US7169370 Method for co-precipitating actinides and method for preparing mixed actinide oxides
01/02/2007	US7157061 Process for radioisotope recovery and system for implementing same
12/2006
12/12/2006	US7148393 Ion-specific radiodecontamination method and treatment for radiation patients
10/2006
10/26/2006	WO2006113040A2 A non-aqueous method for separating chemical constituents in spent nuclear reactor fuel
10/19/2006	US20060233685 Non-aqueous method for separating chemical constituents in spent nuclear reactor fuel
06/2006
06/20/2006	US7063823 Depleted UF6 processing plant and method for processing depleted UF6
05/2006
05/10/2006	EP1335880B1 Method for co-precipitating actinides and method for preparing mixed actinide oxides
04/2006
04/27/2006	US20060088457 Ultrasonic counter-current screw extractor for uranium recovery
03/2006
03/01/2006	EP1042752B1 Method and device for oxidising one or several actinide/s, stabilised in reduced form with one or several anti-nitrous agent/s, in concentrated nitric solution
01/2006
01/19/2006	WO2006007265A2 Ultrasonic counter-current screw extractor for uranium recovery
12/2005
12/29/2005	US20050288542 Making mixed oxides of plutonium and uranium using oxalic acid as chelating agent and calcining the coprecipitate; making nuclear fuels
12/21/2005	CN1232608C Method for synthesizing nano semiconductor luminescence material on liquid-liquid interface
12/15/2005	WO2005119699A1 Method for co-precipitation of actinides in different oxidation states and method for preparation of mixed actinide compounds
10/2005
10/06/2005	US20050221516 Liquid-liquid interfacial synthetic method for nanosemiconductor luminous material
09/2005
09/22/2005	US20050205494 Feeding a solution containing a plurality of actinide elements into a resin column in which a weakly basic anion exchange resin has been packed, and then feeding a eluent of a mixed solution of nitric acid and alkyl alcohol into the resin column to chromatographically separate the actinide elements
01/2005
01/12/2005	CN1563265A Method for synthesizing nano semiconductor luminescence material on interface bewteen liquid-liquid
09/2004
09/22/2004	CN1168099C Ionic liquids as solvents
09/02/2004	US20040170550 Method for reprocessing spent nuclear fuel
03/2004
03/03/2004	CN1479696A Mtehod for co-precipitating actinides and method for preparing mixed actinide oxides
02/2004
02/19/2004	DE10217138A1 Actinide oxide microspheres useful for making sintered ceramic microspheres are produced by forming a binder-containing actinide oxide suspension into particles and chemically or physically hardening the particles
02/05/2004	US20040021132 Adding organic complexing agent to first aqueous solution of actinide An1 in oxidation state (IV) in order to form complex; adding complexing agent to second aqueous solution of an actinide An2 in oxidation state (IV); mixing; precipitation
10/2003
10/07/2003	CA2090940C Process for the preparation of metal hydroxides
10/01/2003	CN1123013C Nuclear fuel reprocessing method
09/2003
09/23/2003	US6623712 Method for dissolving plutonium or a plutonium alloy and converting it into nuclear fuel
09/02/2003	US6613303 Aqueous solution of a strontium 90 salt is united with a titanium, zirconium, and/or silicon compound being in a dissolved state and solution of ammonium salts of carbonic acid and/or organic acid; solvent expelled; calcined
08/2003
08/20/2003	EP1335880A1 Method for co-precipitating actinides and method for preparing mixed actinide oxides
08/12/2003	US6605261 Drying them calcining in single multizonal screw oven in presence of oxygen
10/2002
10/22/2002	US6468445 Solvent for the simultaneous recovery of radionuclides from liquid radioactive wastes
10/08/2002	US6461576 Pyroprocess for processing spent nuclear fuel
06/2002
06/05/2002	EP1056536B1 Apparatus for agglomerating of particles
05/2002
05/02/2002	EP0885444B1 Nuclear fuel reprocessing
04/2002
04/30/2002	US6379634 Dissolving in a solvent a material in an initial oxidation state below its maximum oxidation state, wherein the solvent oxidizes it to a higher oxidation state; nuclear fuels
04/24/2002	EP0866772B1 Method for preparing a mixture of powdered metal oxides from nitrates thereof in the nuclear industry
04/11/2002	WO2002028778A1 Method for co-precipitating actinides and method for preparing mixed actinide oxides
03/2002
03/20/2002	EP1007747B1 Method for separating actinides and lanthanides by liquid-liquid extraction using calixarenes
01/2002
01/10/2002	US20020004025 Drying them calcining in single multizonal screw oven in presence of oxygen
12/2001
12/05/2001	EP1038300B1 Highly radioactive miniaturized ceramic strontium 90 radiation source and method for the production thereof
11/2001
11/06/2001	US6312653 Method for separating actinides and lanthanides by liquid-liquid extraction using calixarenes
10/2001
10/25/2001	US20010033814 Novel solvent for the simultaneous recovery of radionuclides from liquid radioactive wastes
07/2001
07/10/2001	US6258333 Extracting reagent comprising complex organoboron compounds, substituted polyethylene glycols, and neutral organophosphorus compounds in diluent to recover cesium, strontium, rare earths and actinides
07/03/2001	CA2240267C Method for preparing a mixture of powdered metal oxides from nitrates thereof in the nuclear industry
04/2001
04/18/2001	EP1091908A1 Nuclear fuel reprocessing
12/2000
12/06/2000	EP1056536A1 Apparatus for agglomerating of particles
10/2000
10/11/2000	EP1042752A1 Method and device for oxidising one or several actinides stabilised in reduced form with one or several anti-nitrous agents in concentrated nitric solution
09/2000
09/27/2000	EP1038300A1 Highly radioactive miniaturized ceramic strontium 90 radiation source and method for the production thereof
08/2000
08/29/2000	US6110437 Method for preparing a mixture of powdered metal oxides from nitrates thereof in the nuclear industry
07/2000
07/25/2000	US6093375 Forming an aqueous solution of the spent fuel, solvent extraction using formohydroxamic acid to reduce naptunium6 to naptunium5 and/or to form complex with naptunium4 to retain all the naptunium in aqueous phase during sovent extraction
06/2000
06/14/2000	EP1008147A2 Ionic liquids as solvents
06/14/2000	EP1007747A1 Method for separating actinides and lanthanides by liquid-liquid extraction using calixarenes
05/2000
05/11/2000	DE19810895C1 Verfahren zur Trennung der Transpultoniden von den Spaltlanthaniden durch selektive Extraktion A process for the separation of the Transpultoniden of the Spaltlanthaniden by selective extraction
04/2000
04/20/2000	WO2000022628A1 Highly radioactive miniaturized ceramic strontium 90 radiation source and method for the production thereof
03/2000
03/07/2000	US6033636 Method of recovering uranium and transuranic elements from spent nuclear fuel
12/1999
12/23/1999	WO1999066086A1 Method for dissolving plutonium or a plutonium alloy and converting it into nuclear fuel
12/09/1999	WO1999062824A1 Nuclear fuel reprocessing
09/1999
09/02/1999	WO1999043423A1 Apparatus for agglomerating of particles
08/1999
08/25/1999	CN1226992A Ionic liquids as solvents
07/1999
07/20/1999	US5926687 Crown calix \|4\| arenes, their preparation process and their use for the selective extraction of cesium and actinides
07/08/1999	WO1999034369A1 Method and device for oxidising one or several actinides stabilised in reduced form with one or several anti-nitrous agents in concentrated nitric solution
06/1999
06/16/1999	CN1043666C Combined transuranic-strontium extraction process
06/10/1999	WO1999028514A1 Bioremediation of waste streams containing dissolved metals such as neptunium by two-stage bio-reduction/extraction
04/1999
04/14/1999	EP0733023B1 Uranium hexafluoride purification
03/1999
03/25/1999	WO1999014765A1 GLYCOLIC AND PYRUVIC ACIDS AS Np(IV) STRIPPING AGENTS
03/16/1999	US5882552 Method for recycling fuel scrap into manufacture of nuclear fuel pellets
03/10/1999	CN1210612A Nuclear fuel reprocessing
03/04/1999	WO1999010545A1 Method for separating actinides and lanthanides by liquid-liquid extraction using calixarenes
12/1998
12/23/1998	EP0885444A1 Nuclear fuel reprocessing
11/1998
11/03/1998	US5830342 Redox systems
09/1998
09/30/1998	EP0866772A1 Method for preparing a mixture of powdered metal oxides from nitrates thereof in the nuclear industry
05/1998
05/22/1998	WO1998006106A3 Ionic liquids as solvents
04/1998
04/28/1998	US5745835 Process and apparatus for dissolving a mixture of oxides of uranium and of plutonium
03/1998
03/03/1998	US5723837 Uranium hexafluoride purification
02/1998
02/12/1998	WO1998006106A2 Ionic liquids as solvents
02/12/1998	CA2260969A1 Ionic liquids as solvents
11/1997
11/20/1997	WO1997043769A1 Fuel composition for fast-neutron reactors and method for preparing the same
10/1997
10/14/1997	US5678167 Treating with aqueous nitric acid, ultraviolet rays
10/01/1997	EP0695304B1 Calix[4]arene crown ethers, method for preparing same, and use thereof for the selective extraction of caesium and actinides
08/1997
08/21/1997	WO1997030456A1 Nuclear fuel reprocessing
07/1997
07/17/1997	WO1997025721A1 Recovery of actinides
06/1997
06/19/1997	WO1997021629A1 Method for preparing a mixture of powdered metal oxides from nitrates thereof in the nuclear industry
06/17/1997	US5640668 Adjusting hydroxyl ion concentration; adding uranyl peroxide ion in presence of catalytic amounts of a suitable catalyst; coprecipitation of neptunium and plutonium
04/1997
04/29/1997	US5625862 Beneficiating plutonium oxide in silica containing material using aqueous medium having immiscible salt and polymer phases by controlling ph to direct partitioning to one of said phases
04/09/1997	EP0767465A1 Process and device for dissolving a mixture of oxides from uranium and plutonium
03/1997
03/04/1997	US5607591 From effluents of irradiated fuel reprocessing plants
01/1997
01/22/1997	EP0670840B1 Bis-crown calix[4]arenes, method for preparing same and use thereof for selectively recovering cesium and actinides
12/1996
12/17/1996	US5585043 Nitric acid solution of neptunium and plutonium is oxidized by irradiation with ultraviolet light
12/03/1996	US5581589 Method and apparatus for producing gel particles
09/1996
09/25/1996	EP0733023A1 Uranium hexafluoride purification
08/1996
08/29/1996	DE19526776A1 Thorium plutonium oxide used to transport and store plutonium
07/1996
07/23/1996	US5538701 Slurry flows through magnetized metal mesh to which actinides adhere
05/1996
05/07/1996	US5514306 Process to reclaim UO2 scrap powder
04/1996
04/23/1996	US5510090 Stronger complexing with actinides(iii) makes possible thei separation from lanthanides(iii)
03/1996
03/19/1996	US5500192 Exposing a nitric acid solution containing neptunium, plutonium and a reducing agent to ultraviolet radiation and extracting solution using an organic phase to remove plutonium
02/1996
02/07/1996	EP0695304A1 Calix 4 arene crown ethers, method for preparing same, and use thereof for the selective extraction of caesium and actinides
12/1995
12/19/1995	CA1337740C Process to separate transuranic elements from nuclear waste
09/1995
09/13/1995	EP0670840A1 Bis-crown calix 4]arenes, method for preparing same and use thereof for selectively recovering cesium and actinides.
08/1995
08/01/1995	US5437848 Recovery of metal values from process residues
06/1995
06/15/1995	WO1995015921A1 Uranium hexafluoride purification
05/1995
05/30/1995	US5419886 Method for generation of finely divided reactive plutonium oxide powder
05/23/1995	US5417943 Method for producing UO2 or (U/PU)02 powder

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