| Patents for C22B 60 - Obtaining metals of atomic number 87 or higher, i.e. radioactive metals (1,601) |
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| 02/28/1989 | US4808316 Process for treating waste water containing uranium and fluorine |
| 02/09/1989 | WO1989000885A1 Adsorbent |
| 01/12/1989 | WO1989000081A1 Adsorbent |
| 01/10/1989 | US4797264 Recovery of metals adsorbed on chelating agents |
| 12/28/1988 | CA1247372A1 Pressure leaching of uranium ores in a chloride medium |
| 12/27/1988 | US4793978 Dissolving in nitric and fluoboric acids; adding hydrogen peroxide |
| 12/06/1988 | US4789534 Pyroysis of metal amide |
| 11/08/1988 | CA1244246A1 Extraction process for removing and recovering metals from aqueous solutions |
| 11/03/1988 | WO1988008323A1 Ion exchange method for separation of scandium and thorium |
| 10/18/1988 | US4778663 Uranium recovery from wet process phosphoric acid unsymmetrical phosphine oxides |
| 10/18/1988 | CA1243331A1 Diphosphonic derivate applications to cation exchange, novel diphosphonic derivatives, and their manufacture |
| 10/11/1988 | CA1242890A1 Selective process of separating uranium, zirconium and/or hafnium and/or molybdenum from a carbonate liquor containing these elements |
| 10/04/1988 | US4775413 Concentration and recovery of mineral values from ores |
| 09/27/1988 | US4774262 Crosslinked, binding, esterification recovering metals |
| 09/22/1988 | DE3708140A1 Process for the liquid/liquid extraction of wet-process phosphoric acid with organic solvents |
| 09/20/1988 | US4772429 Reprocessing nuclear fuels |
| 09/13/1988 | US4770807 Novel extraction agents and novel propane diamides |
| 09/06/1988 | US4769180 Adding mg compound to waste liquor to form precipitate; neutralizing precipitate; distilling |
| 09/06/1988 | CA1241543A1 Processes for extracting radium from uranium mill tailings |
| 08/30/1988 | CA1241202A1 Process and apparatus for recovering metallic uranium scrap |
| 08/30/1988 | CA1241201A1 Magnesium reduction of uranium fluoride in molten salts |
| 08/23/1988 | US4765909 Ion exchange method for separation of scandium and thorium |
| 08/16/1988 | US4764353 Slurrying, adding sulfur dioxide and oxygen mixture to oxidize, acidify |
| 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 |
| 08/03/1988 | EP0276544A1 Method for induction melting reactive metals and alloys |
| 07/26/1988 | US4759913 Centrifuging and removing |
| 07/19/1988 | US4758411 Process for the recovery in the form of tetravalent fluoride of uranium extracted from phosphate-bearing solutions with the addition of metalic ions |
| 07/05/1988 | US4755328 Reducing uranium content by adding soluble aluminum salt to raise pH and effect precipitation, coagulation, adsorption |
| 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 |
| 05/31/1988 | US4748008 Process for separating uranium isotopes by oxidation-reduction chromatography |
| 05/04/1988 | EP0265547A1 Method of recovering rare earths, and in a given case, uranium and thorium from heavy phosphate minerals |
| 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 |
| 04/19/1988 | US4738713 In segmented metal crucible using alternating current |
| 02/16/1988 | US4725413 Process for selective separations of plutonium from uranium and other metals |
| 02/02/1988 | CA1232138A1 Removal of radium from aqueous liquids |
| 01/05/1988 | US4717420 Forming hydride, cooling to render ferromagnetic, separation |
| 12/29/1987 | CA1230742A1 Global extraction process of uranium, ittryum, thorium and rare earths from an organic medium |
| 12/22/1987 | US4714596 Reduction, extraction with organic phosphate in solvent, reextraction with aqueous hydrofluoric acid containing uranium tetrafluoride |
| 12/01/1987 | US4710222 Method for removal of plutonium impurity from americium oxides and fluorides |
| 11/10/1987 | US4705672 Process to improve the removal of suspended solids in leached uranium ore clarification |
| 10/20/1987 | US4701310 Method and apparatus for producing uranyl peroxide (UO4.2H2 O) from uranium and uranium alloy pieces |
| 10/20/1987 | US4701309 Dilute and concentrated sulfuric acid applications; recycling |
| 09/30/1987 | EP0239501A1 Process for separating iron from an organic solution containing uranium |
| 08/18/1987 | US4687632 Using a metal reducing agent |
| 08/12/1987 | EP0148194B1 High temperature pre-treatment by means of an aqueous alcolyne solution of clayish gangue ore containing at least one valuable element |
| 08/04/1987 | CA1224926A1 Method for working-up complex sulphidic ore concentrates |
| 07/21/1987 | CA1224335A1 High temperature pre-treatment, by means of an alkaline aqueous solution, for minerals having a clayey brood containing at least one upgradable element |
| 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 |
| 06/23/1987 | US4675166 Process for the selective separation of uranium, zirconium and/or hafnium and/or molybdenum from a carbonated aqueous solution containing same |
| 06/03/1987 | EP0224277A2 Process for selectively separating plutonium from uranium and other metals |
| 06/03/1987 | EP0224209A2 Process for recovery of rare metals |
| 06/02/1987 | US4670051 Oxidation process for releasing metal values in which nitric acid is regenerated in situ |
| 06/02/1987 | CA1222376A1 Global recovery of uranium, yttrium, thorium and rare earths from a phosphated mineral in the course of a wet treatment process for the preparation of phosphoric acid |
| 05/06/1987 | EP0220198A1 Preparing metal compounds by pyrolysis. |
| 04/28/1987 | US4661327 Recovery of mineral values using magnetically susceptible ion exchange agent |
| 04/21/1987 | US4659551 Process for separation of neptunium from an organic phase in the recovery of irradiated fuel and/or fertile materials |
| 04/07/1987 | US4656012 Process for the recovery of uranium from phosphoric acid solutions |
| 04/07/1987 | US4656011 Itechnetium reduction catalyst |
| 04/07/1987 | US4655827 Process for the reduction of fluorides of silicon, titanium, zirconium or uranium |
| 03/31/1987 | US4654200 Processes for extracting radium from uranium mill tailings |
| 03/31/1987 | CA1219880A1 Hydroxybenzylamines as uranium complexing agents |
| 03/24/1987 | US4652432 Process for recovering uranium using an alkyl pyrophosphoric acid and alkaline stripping solution |
| 03/24/1987 | US4652431 Process for recovering uranium using an alkyl pyrophosphoric acid and alkaline stripping solution |
| 03/17/1987 | CA1219131A1 Process for the removal of radium from acidic solutions containing same |
| 03/10/1987 | US4649031 Process for recovering rare metals from the combustion residue of coal by digestion |
| 03/10/1987 | US4649030 Solvent extraction; sulfuric acid; alkali metal, thallium or ammonium sulfate |
| 03/10/1987 | US4649029 Processes for extraction of uranium and radium from uranium-containing ores using ferric nitrate |
| 03/04/1987 | EP0212711A2 Process for the reduction of fluorides of silicon, titanium, zirconium or uranium |
| 02/17/1987 | US4643882 Process for recovery by a solvent of the uranium present in phosphoric acid |
| 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 |
| 01/21/1987 | EP0209471A1 Process for separating by precipitation molybdenum contained in solutions of uranyl nitrate |
| 01/21/1987 | EP0209470A1 Process for separating by precipitation molybdenum contained in sulfuric or nitric solutions of uranium |
| 01/20/1987 | CA1216755A1 Process of extracting both uranium and radium from uranium-containing ores |
| 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 |
| 01/13/1987 | US4636369 Acidification, aluminum and iron compounds |
| 01/13/1987 | US4636367 Coprecipitation, fluidized beds |
| 01/13/1987 | US4636250 Magnesium fluoride |
| 01/06/1987 | US4634579 Precipitation |
| 12/23/1986 | US4631142 Extraction of uranium by chelation |
| 12/23/1986 | CA1215545A2 Method for treating an insoluble composition loaded with th.sup.4.sup. and uo.sub.2.sup.2.sup. to separate th.sup.4.sup. therefrom |
| 12/10/1986 | EP0204217A1 Recovery of metals adsorbed on chelating agents |
| 12/04/1986 | WO1986007097A1 Metal halide reduction with molten sodium/potassium alloy |
| 11/06/1986 | WO1986006361A1 Preparing metal compounds, alloys and metals by pyrolysis |
| 10/29/1986 | EP0199460A1 Liquid - liquid extraction columns |
| 10/29/1986 | EP0198967A1 Process and apparatus for separating actinide or lanthanide metals or their alloys from salts |
| 10/28/1986 | CA1213400A1 Ion exchange resins for uranium recovery |
| 10/28/1986 | CA1213149A1 Separation of uranium from carbonate containing solutions thereof by direct precipitation |
| 10/14/1986 | CA1212516A1 Process for the valorizastion of uranium and rare earths contained in the impure uf.sub.4 from the extraction of the uranium of phosphoric acid |
| 10/07/1986 | USH137 Heating in vacuum with calcium and/or magnesium fluoride |
| 09/23/1986 | US4613361 High-temperature pretreatment by means of an alkaline aqueous solution of ores having an argillaceous gangue containing at least one usable element |
| 09/09/1986 | US4610852 Ammonium sulfate, solvent extraction |
| 09/02/1986 | US4609533 Process for selective separation of plutonium from uranium and other metals |
| 09/02/1986 | CA1210566A1 Improved solution process for unrefined uranium tetrafluoride |
| 08/26/1986 | CA1210223A1 Method of precipitating uranium peroxide |
| 08/19/1986 | US4606895 Ion exchange loading |
| 08/19/1986 | US4606894 Uranium recovery from carbonate leach liquors using carboxylic acid cation exchange resin |