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Class Information
Number: 423/250
Name: Chemistry of inorganic compounds > Radioactive (at. no. 84+ or radioactive isotope of another element) > Transuranium compound
Description: Products or processes in which the compound comprises an element having an atomic number of 93 or greater.










Sub-classes under this class:

Class Number Class Name Patents
423/251 Plutonium containing 122


Patents under this class:

Patent Number Title Of Patent Date Issued
7887767 Process for reprocessing a spent nuclear fuel and of preparing a mixed uranium-plutonium oxide Feb. 15, 2011
7622090 Method for separating uranium (VI) from actinides(IV) and/or actinides (VI) and its uses Nov. 24, 2009
7357910 Method for producing metal oxide nanoparticles Apr. 15, 2008
7294291 Ceramicrete stabilization of U-and Pu-bearing materials Nov. 13, 2007
7291317 Method for synthesizing extremely high-temperature melting materials Nov. 6, 2007
7217402 Apparatus and method for making metal chloride salt product May. 15, 2007
7214318 Method for separation of actinide elements May. 8, 2007
7195745 Method of preparing a product based on phosphate of thorium and/or actinide(s) Mar. 27, 2007
7011798 Process for reprocessing spent nuclear fuels by utilizing phenomenon of cocrystallization Mar. 14, 2006
6967011 Method for synthesizing extremely high-temperature melting materials Nov. 22, 2005
6833024 Abatement of effluent from chemical vapor deposition processes using ligand exchange resistant metal-organic precursor solutions Dec. 21, 2004
6830738 Low-temperature synthesis of actinide tetraborides by solid-state metathesis reactions Dec. 14, 2004
6217841 Process for the preparation of metal carbides having a large specific surface from activated carbon foams Apr. 17, 2001
6033636 Method of recovering uranium and transuranic elements from spent nuclear fuel Mar. 7, 2000
5640668 Removal of dissolved actinides from alkaline solutions by the method of appearing reagents Jun. 17, 1997
5336450 Process to remove rare earth from IFR electrolyte Aug. 9, 1994
5160367 Salt transport extraction of transuranium elements from lwr fuel Nov. 3, 1992
5147616 Magnesium transport extraction of transuranium elements from LWR fuel Sep. 15, 1992
5141723 Uranium chloride extraction of transuranium elements from LWR fuel Aug. 25, 1992
5128112 Synthesis of actinide nitrides, phosphides, sulfides and oxides Jul. 7, 1992
5098682 Dehydration of plutonium or neptunium trichloride hydrate Mar. 24, 1992
5096545 Plutonium recovery from spent reactor fuel by uranium displacement Mar. 17, 1992
5073337 Rare earth/iron fluoride and methods for making and using same Dec. 17, 1991
4871478 Method of improving the criticality safety in a liquid-liquid extraction process for spent nuclear fuel or breeder reactor materials Oct. 3, 1989
4814046 Process to separate transuranic elements from nuclear waste Mar. 21, 1989
4724127 Method for recovery of actinides from refractory oxides thereof using O.sub. F.sub.2 Feb. 9, 1988
4713225 Method for removing organic reduced sulfur compounds Dec. 15, 1987
4710222 Method for removal of plutonium impurity from americium oxides and fluorides Dec. 1, 1987
4659551 Process for separation of neptunium from an organic phase in the recovery of irradiated fuel and/or fertile materials Apr. 21, 1987
4656011 Process of treating nuclear fuel Apr. 7, 1987
4544531 Uranium hexafluoride purification process Oct. 1, 1985
4414187 Preparation of metal phosphates by a reaction using boron phosphate Nov. 8, 1983
4318893 Process for the separation of americium from curium contained in an aqueous nitric solution Mar. 9, 1982
4229421 Purification of plutonium Oct. 21, 1980
4225455 Process for decomposing nitrates in aqueous solution Sep. 30, 1980
4211757 Actinide sulfite tetrahydrate and actinide oxysulfite tetrahydrate Jul. 8, 1980
4105746 Method and apparatus for providing negative ions of actinide-metal hexafluorides Aug. 8, 1978
4082547 Intermetallic compounds and metal purification Apr. 4, 1978
4012489 Process for the preparation of uranium dioxide Mar. 15, 1977
3996331 Plutonium and americium separation from salts Dec. 7, 1976
3979500 Preparation of finely-divided refractory powders of groups III-V metal borides, carbides, nitrides, silicides and sulfides Sep. 7, 1976
3976749 Method for producing pure monocarbides, mononitrides and carbonitrides Aug. 24, 1976
3962401 Method of recovering neptunium from spent nuclear fuel Jun. 8, 1976
3953355 Preparation of uranium nitride Apr. 27, 1976











 
 
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