| Patents for C22B 60 - Obtaining metals of atomic number 87 or higher, i.e. radioactive metals (1,601) |
|---|
| 06/29/1993 | US5223232 Solvent extraction of solutions from irradiated nuclear fuel reprocessing plants |
| 06/29/1993 | US5223181 Solubilizing magnesium from slurrying using carbon dioxide, filtering |
| 06/29/1993 | CA1319494C Method of solvent extraction and apparatus therefor |
| 06/15/1993 | US5219533 Countercurrent flow of streams of aqueous phase and organic phase |
| 06/05/1993 | WO1993011113A1 Process for the selective extraction of actinides (iii) by means of nitrogenous heterocyclic substituant amides |
| 05/26/1993 | EP0543552A1 Apparatus for solvent extraction |
| 05/25/1993 | US5213777 Extraction of uranium values using an imidazole extractant |
| 05/18/1993 | US5211742 Method of converting uranium dioxide into metallic uranium lump |
| 05/13/1993 | WO1993009543A1 Method for reducing volume of a radioactive composition |
| 05/13/1993 | CA2121813A1 Method for reducing volume of a radioactive composition |
| 04/27/1993 | US5205980 Sublimer assembly |
| 04/13/1993 | US5202100 Method for reducing volume of a radioactive composition |
| 03/24/1993 | EP0532919A1 Method for removing a heavy metal from a waste stream |
| 03/17/1993 | EP0379565B1 Process to separate transuranic elements from nuclear waste |
| 02/23/1993 | US5188809 Method for separating coke from a feed mixture containing zirconium and radioactive materials by flotation process |
| 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 |
| 01/19/1993 | US5180526 From extraction of uranium ores; washing followed by ion exchange |
| 01/07/1993 | EP0521608A1 A method of producing uranium metal |
| 12/29/1992 | US5174975 Low temperature pyrolysis |
| 12/09/1992 | EP0516763A1 Deoxidation of a refractory metal |
| 11/17/1992 | US5164050 Method of obtaining uranium from oxide using a chloride process |
| 11/03/1992 | US5160482 Zirconium-hafnium separation and purification process |
| 11/03/1992 | US5160367 Converting spent oxide nuclear fuel to metal |
| 11/03/1992 | CA1309782C Process to improve the removal of suspended solids in leached uranium oreclarification |
| 10/20/1992 | US5156824 Application of diphosphonic derivatives to cation exchange, new diphosphonic derivatives and production process therefor |
| 10/13/1992 | US5154899 Metal recovery from porous materials |
| 09/28/1992 | WO1992017887A1 Process for selectively concentrating the radioactivity of thorium containing magnesium slag |
| 09/28/1992 | CA2107111A1 Process for selectively concentrating the radioactivity of thorium containing magnesium slag |
| 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 |
| 09/15/1992 | US5147616 Magnesium transport extraction of transuranium elements from LWR fuel |
| 08/25/1992 | US5141723 Uranium chloride extraction of transuranium elements from LWR fuel |
| 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 |
| 07/14/1992 | US5130001 Uranium isotope separation by continuous anion exchange chromatography |
| 06/02/1992 | US5118478 Extractrion process for removing and recovering metals from aqueous solutions |
| 06/02/1992 | US5118343 No significant chemical waste products |
| 04/14/1992 | US5104095 Apparatus for separating molten salt from molten salt or molten uranium or molten uranium alloy |
| 04/14/1992 | CA1298923C Process for treating waste water containing uranium and fluorine |
| 03/30/1992 | CA2052407A1 Cleaning of solutions of alkylphosphates |
| 03/19/1992 | WO1992004474A1 Removal of molybdenum from uranium-bearing solutions |
| 03/17/1992 | US5096545 Plutonium recovery from spent reactor fuel by uranium displacement |
| 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 |
| 01/28/1992 | US5084253 Method of removing niobium from uranium-niobium alloy |
| 12/31/1991 | US5077020 Metal recovery process using waterglass |
| 12/10/1991 | CA1292857C Process for producing uranium oxides |
| 11/13/1991 | EP0220198B1 Preparing metal compounds by pyrolysis |
| 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 |
| 09/10/1991 | CA1288765C Lignin having sulfur and phosphorus groups |
| 08/23/1991 | WO1991013182A1 Deoxidation of a refractory metal |
| 08/23/1991 | CA2075922A1 Deoxidation of a refractory metal |
| 08/13/1991 | US5039336 Fluidized bed chlorination |
| 07/31/1991 | CN1053414A Waterglass precipitate recovery process |
| 07/23/1991 | CA1286478C Magnesium fluoride recovery method |
| 07/16/1991 | CA1286115C Recovery of metals adsorbed on chelating agents |
| 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 |
| 06/26/1991 | EP0433860A2 Waterglass precipitate recovery process |
| 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 |
| 06/11/1991 | US5023059 Recovery of metal values and hydrofluoric acid from tantalum and columbium waste sludge |
| 06/11/1991 | US5022935 With a metal, heating to liquify deoxidant, cooling, purification of surface |
| 05/21/1991 | US5017344 Phosphine oxide, phosphate |
| 03/19/1991 | US5000927 Method of regulating a purex solvent extraction process |
| 01/16/1991 | EP0408468A1 Process for producing uranium from oxygen-containing uranium compounds by chlorination |
| 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 |
| 11/06/1990 | USH834 Aqueous process for reducing uranium oxide to uranium metal |
| 11/06/1990 | US4968504 Recovery of scandium and uranium |
| 10/18/1990 | WO1990011826A1 Uranium adsorbent |
| 10/03/1990 | EP0389801A2 Method of regulating a purex solvent extraction process |
| 10/02/1990 | CA1274672A1 Process for the reduction of fluorides of silicon, titanium, zirconium or uranium |
| 09/11/1990 | CA1273805A1 Process for the production of a high purity uranium bearing concentrate from zirconium contaminated liquors |
| 09/04/1990 | US4954166 Production of sponge metal from sponge metal fines |
| 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 |
| 07/24/1990 | US4943318 Removal of thorium from raffinate |
| 07/11/1990 | CN1043752A Process for extracting scandium from ore |
| 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 |
| 05/08/1990 | US4923531 Deoxidation of titanium and similar metals using a deoxidant in a molten metal carrier |
| 04/26/1990 | CA2001413A1 Uranium absorbent |
| 04/17/1990 | US4917825 Solvent extraction with 2-methyl-2-heptyl nonanoic acid and dicyclohexano-21-crown- |
| 03/27/1990 | US4911835 Seawater-dissolved metal collecting system |
| 03/06/1990 | US4906493 Method of preparing coatings of metal carbides and the like |
| 01/25/1990 | WO1990000524A1 Process to separate transuranic elements from nuclear waste |
| 01/23/1990 | US4895709 Low temperature pyrolysis |
| 01/23/1990 | CA1264559A1 Process for treating uraniferous solutions by the addition of an aluminum salt |
| 01/16/1990 | US4894209 Process for obtaining a uranium-bearing concentrate of high purity from liquors contaminated with zirconium |
| 01/09/1990 | US4892715 Pretreatment of uranium ore by oxidation, leaching with acidic solution |
| 01/02/1990 | US4891163 Method of processing nuclear fuel scraps |
| 11/23/1989 | EP0342799A2 A method of solvent extraction and apparatus therefor |
| 11/14/1989 | US4880607 Leaching with diluents to recover uranium |
| 10/17/1989 | US4874599 Magnesium fluoride recovery method |
| 08/01/1989 | USH659 Process for electrolytically preparing uranium metal |
| 07/04/1989 | CA1256704A1 Process for separating uranium isotopes by oxidation- reduction chromatography |
| 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 |
| 05/30/1989 | US4834793 Oxidation process for releasing metal values in which nitric acid is regenerated in situ |
| 05/23/1989 | US4832924 Phenolic crosslinking chelate resin |
| 05/23/1989 | US4832923 Liquid-liquid extraction columns |
| 05/16/1989 | US4830665 Process and unit for preparing alloyed and non-alloyed reactive metals by reduction |
| 05/03/1989 | EP0313647A1 Ion exchange method for separation of scandium and thorium |
| 05/02/1989 | US4826666 Method of preparing metal carbides and the like and precursors used in such method |
| 04/04/1989 | US4818503 Extraction process for removing and recovering metals from aqueous solutions |
| 03/28/1989 | US4816241 Gaseous reduction of phosphoric acid |
| 03/21/1989 | US4814046 Process to separate transuranic elements from nuclear waste |