| Patents for C22B 60 - Obtaining metals of atomic number 87 or higher, i.e. radioactive metals (1,601) |
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| 07/21/1981 | US4279866 Method of producing weakly acidic cation exchange resin particles charged with uranyl ions |
| 07/21/1981 | CA1105264A1 Hydrometallurgical process for the treatment of ores |
| 07/14/1981 | US4278640 Bubbling air, flotation |
| 07/14/1981 | CA1104832A1 Process for extracting phosphoric acid and metal values from phosphate rock |
| 07/14/1981 | CA1104831A1 Extraction of valuable constituents from minerals with liquid reagents |
| 07/14/1981 | CA1104830A1 Recovery of molybdenum from uranium liquors |
| 07/08/1981 | EP0031793A2 Process for producing phosphoric acid during which uranium in a recoverable state is obtained |
| 07/08/1981 | EP0031460A2 Process for recovering uranium or its compounds from phosphoric acid |
| 07/07/1981 | US4277565 Macromolecular adsorbent containing pendant difluoroalkyl phosphate groups for adsorbing heavy metal ions |
| 07/07/1981 | US4277345 Method for the recovery of uranium dissolved in sea water |
| 07/01/1981 | EP0031172A1 Method for the reductive reextraction of uranium from an organic extractant |
| 06/30/1981 | US4276235 Method for purifying bidentate organophosphorous compounds |
| 06/30/1981 | CA1104109A1 Extractant and process for extracting uranium wet- process phosphoric acid |
| 06/23/1981 | US4275037 Uranium |
| 06/23/1981 | CA1103461A1 Process for recovering uranium from wet-process phosphoric acid |
| 06/16/1981 | CA1103227A1 Liquid membrane process for uranium recovery |
| 06/16/1981 | CA1103037A1 Process for recovering uranium from wet process phosphoric acid |
| 06/16/1981 | CA1103036A1 Process for the recovery of uranium from a saline lixiviant |
| 06/16/1981 | CA1103035A1 Removal of actinide metals from solution |
| 06/11/1981 | WO1981001577A1 Reduction of organic solvent losses in hydrometallurgy |
| 06/10/1981 | EP0029879A2 Process and apparatus for the thermal recovery of metallic carbides or metals |
| 06/09/1981 | US4272491 Ferric leaching of uranium values from lignite |
| 06/09/1981 | US4272490 Hydrometallurgical process for the treatment of ores |
| 06/09/1981 | CA1102679A1 In situ leach method for recovering uranium and related values |
| 06/02/1981 | CA1102347A1 Removal of metal from solution |
| 06/02/1981 | CA1102142A1 Recovery of useful materials from calcines |
| 05/26/1981 | US4269808 Method of simultaneously subjecting ores to pulverization and leaching or extraction |
| 05/19/1981 | US4268422 Titanium dioxide hydrate of a particular structure and process of manufacture thereof |
| 05/19/1981 | CA1101591A1 Material for recovering uranium and method for recovering a uranium solution of high purity and high concentration, using the same |
| 05/05/1981 | US4265862 From radioactive impurities |
| 05/05/1981 | US4265861 Method of reducing radioactive waste and of recovering uranium from it |
| 04/28/1981 | CA1099927A1 Process for the chemical treatment of uraniferous ores containing sulfur compounds and/or organic components by alkaline leaching |
| 04/21/1981 | US4263403 Method of extracting uranium from sea water |
| 04/21/1981 | US4263148 Process for removing humic matter from phosphoric acid solutions |
| 04/01/1981 | EP0026132A1 Process for global recovery of uranium, rare earth metals, thorium and yttrium from an acid solution |
| 03/31/1981 | US4258955 Process for in-situ leaching of uranium |
| 03/24/1981 | US4258015 Solvent extraction, absorption of entrained organics on hydrophobic polystyrne |
| 03/24/1981 | US4258014 Stripping with sodium carbonate |
| 03/24/1981 | US4258013 Uranium recovery from wet process phosphoric acid |
| 03/24/1981 | CA1098029A1 Process for recovery of mineral values from underground formations |
| 03/24/1981 | CA1097926A1 Process for reducing molybdenum and carbonate contamination of uranium yellowcake |
| 03/24/1981 | CA1097925A1 Method for the recovery of actinide elements from nuclear reactor waste |
| 03/19/1981 | WO1981000727A1 Process and device for removing valuable materials dissolved in sea water |
| 03/17/1981 | US4256702 Ion exchanging with ammonium resin |
| 03/10/1981 | US4255392 Solvent extraction with bis/2-ethylhexyl/ phosphate, tri-n-octyl phosphine oxide, iron, and uranium |
| 03/10/1981 | CA1097212A1 Solution mining method utilizing dissolved oxygen |
| 03/10/1981 | CA1097028A1 Crud handling circuit |
| 02/24/1981 | US4252564 Decomposition of magnesium fluoride with an alkali metal salt |
| 02/10/1981 | US4250155 Method of purifying phosphoric acid after solvent extraction |
| 02/03/1981 | US4248703 Attachment to floating continuous string belt |
| 02/03/1981 | US4248628 Method for leaching and precipitating metal values from solids |
| 02/03/1981 | CA1094947A1 Process for the in-situ leaching of uranium |
| 01/28/1981 | EP0023173A1 Diphosphonic and triphosphonic acid esters, their preparation and applications |
| 01/28/1981 | EP0023057A1 Process for preparing phosphates and a uranium-containing concentrate from wet-process phosphoric acid, as well as phosphates and uranium-containing concentrate obtained with application of this process |
| 01/27/1981 | US4247522 Method of purifying uranium tetrafluoride hydrate and preparing uranium (VI) peroxide hydrate using a fluoride precipitating agent |
| 01/20/1981 | CA1093831A1 Uranium extraction |
| 01/06/1981 | US4243638 Iron EDTA chelate catalyzed oxidation of uranium |
| 01/06/1981 | US4243637 Uranium recovery from pre-treated phosphoric acid |
| 12/30/1980 | CA1092364A1 Apparatus for the extraction of uranium from its ores |
| 12/23/1980 | US4241027 Reductive stripping process for the recovery of either or both uranium and vanadium |
| 12/23/1980 | US4241026 Quaternary ammonium with hydroxyalkyl groups on resin, non-interferering chloride ions |
| 12/10/1980 | EP0020026A1 Solvent extraction apparatus and process |
| 12/09/1980 | US4238457 Process for the recovery of uranium from wet-process phosphoric acid |
| 12/09/1980 | CA1091033A1 Treatment of actinide-containing organic waste |
| 12/02/1980 | US4237100 Isotopic enrichment of uranium with respect to an isotope |
| 12/02/1980 | US4236911 Treatment with acetone and ammonia |
| 11/25/1980 | US4235850 Process for the recovery of uranium from a saline lixiviant |
| 11/18/1980 | CA1089761A1 Method and apparatus for mixing gaseous oxidant and lixiviant in an in situ leach operation |
| 11/11/1980 | US4233278 Process for purifying crude phosphoric acid |
| 11/11/1980 | US4233272 Ores recovering by chelation |
| 11/04/1980 | CA1088726A1 Carbonate leaching of uranium |
| 10/30/1980 | WO1980002235A1 A method and an apparatus for gathering valuable floating,dissolved and suspended substances from sea water |
| 10/29/1980 | EP0018340A1 An offshore plant for recovery of valuable floating, dissolved and suspended materials from sea water |
| 10/29/1980 | EP0018102A1 Functionalised inorganic oxide products and their use in the removal of heavy metals, transition metals and actinide metals from solution |
| 10/21/1980 | US4229422 Leaching uranium with peroxomonosulphuric acid |
| 10/21/1980 | US4229421 Solvent extraction and reduction of nuclear fuel |
| 10/14/1980 | US4228001 Folded moving bed ion exchange apparatus and method |
| 10/07/1980 | CA1086963A1 Process for the recovery of non-ferrous metals from acidic hydrometallurgical leach liquors with a chelate exchange resin |
| 10/01/1980 | EP0016264A1 Process for extracting uranium from phosphoric acid |
| 09/30/1980 | US4225563 Process and apparatus for continuous leaching of ores |
| 09/30/1980 | US4225396 Vanadium and uranium oxidation by controlled potential electrolysis |
| 09/23/1980 | CA1086444A1 Process for loading weak-acid ion exchange resin with uranium |
| 09/17/1980 | EP0015811A1 Process for the recovery of uranium present in impure phosphoric acid |
| 09/17/1980 | EP0015589A1 Process for recovering a uranium-containing concentrate and purified phosphoric acid from wet-process phosphoric acid, and products thus obtained |
| 09/16/1980 | US4222752 Apparatus for the separation of isotopes by the separating nozzle process |
| 09/02/1980 | US4220726 Polystyrene or copolymer; complexing |
| 08/20/1980 | EP0014553A1 Process for purifying rare-earth compositions |
| 08/05/1980 | CA1082925A1 Extraction of uranium from its ores |
| 07/22/1980 | CA1081969A1 Recovery of transplutonium elements from nuclear reactor waste |
| 07/15/1980 | US4212849 Simultaneous extraction and recovery of uranium and vanadium from wet process acids |
| 07/15/1980 | US4212723 Counterflow extraction column |
| 07/01/1980 | US4210814 Control of pyrophoricity in deposits produced by electron beam evaporation of uranium |
| 06/17/1980 | US4208377 Process for recovering actinide values |
| 06/10/1980 | US4207294 Solvent extraction with organic phosphorus compounds |
| 06/03/1980 | US4206182 Sodium carbonate |
| 05/28/1980 | EP0011516A1 Process for the recuperation of uranium present in phosphatic compounds |
| 05/20/1980 | US4203952 Process for the removal of heavy metals and transition metals other than platinum from solution |
| 05/14/1980 | EP0010608A1 Method and apparatus for recovering dissolved, suspended or chemically bonded materials from water |
| 05/06/1980 | US4201827 Magnetically supported particle matrix for accumulating or affecting substances dissolved or finely dispersed in a liquid or gas |
| 04/30/1980 | EP0010394A1 Process for extracting uranium from phosphoric acid |