| Patents for C22B 60 - Obtaining metals of atomic number 87 or higher, i.e. radioactive metals (1,601) |
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| 09/25/1984 | USRE31687 Method of stripping solid particles |
| 09/25/1984 | USRE31686 Reoxidation to uranyl state; solvent extractiom |
| 09/25/1984 | US4473255 With oxidant |
| 09/25/1984 | CA1174859A1 Process for recovering uranium as a peroxyde from an uranium ore treatment sulfuric solution |
| 09/04/1984 | CA1173995A1 Phenolic chelate resin, process for producing the same, and method of recovering heavy metal ions with the same |
| 08/29/1984 | EP0116989A1 Process for removing heavy metals from aqueous media |
| 08/29/1984 | EP0116988A1 Process for removing heavy metals from aqueous media |
| 08/22/1984 | EP0116483A1 Process for recovering uranium, yttrium, thorium and rare earth metals from an organic phase |
| 08/22/1984 | EP0116097A2 Method of recovering uranium |
| 08/07/1984 | US4464346 Extraction of uranium with triphosphonic esters |
| 08/07/1984 | US4464345 Method of precipitating contaminants in a uranium leachate using ferri ions, complexing agent, and pH control |
| 07/31/1984 | CA1171839A1 Process for the preparation of adsorbent materials |
| 07/31/1984 | CA1171636A1 Process for reducing iron in phosphoric acid solution |
| 07/24/1984 | US4461748 Using organophosphorus compounds |
| 07/24/1984 | US4461747 Method for separating actinides from lanthanides in an acidic aqueous solution |
| 07/24/1984 | US4461746 Reduction of iron in a reductive stripping process for the recovery of uranium from wet process phosphoric acid |
| 07/18/1984 | EP0113649A1 A method for working-up complex sulphidic ore concentrates |
| 07/17/1984 | US4460549 Recovery of uranium from wet-process phosphoric acid |
| 07/17/1984 | US4460548 Extraction of uranium with diphosphonic compounds |
| 07/17/1984 | US4460547 Separating actinide ions from aqueous, basic, carbonate containing solutions using mixed tertiary and quaternary amino anion exchange resins |
| 07/10/1984 | US4459153 Pyrochemical process for extracting plutonium from an electrolyte salt |
| 06/13/1984 | EP0110789A1 Process for recovering actinides and/or lanthanides present in their trivalent state in an aqueous acidic solution |
| 06/12/1984 | US4454097 Process of extracting both uranium and radium from uranium-containing ores |
| 06/05/1984 | US4452490 Treatment of subterranean uranium-bearing formations |
| 05/29/1984 | US4451439 Oxidant and catalyst |
| 05/29/1984 | US4451438 Process for recovering niobium and/or tantalum metal compounds from such ores further containing complexes of uranium, thorium, titanium and/or rare earth metals |
| 05/23/1984 | EP0109327A1 Process for the complete recovery of uranium, yttrium, thorium and rare earth metals from a phosphate ore while preparing wet process phosphoric acid |
| 05/22/1984 | US4450143 Process for reducing the organic solvent losses in the treatment of a suspension resulting from the acid attack on an ore |
| 05/22/1984 | US4450142 Treatment with aliphatic ketone and inorganic fluoride with reducing agent |
| 05/15/1984 | US4448694 Metal extraction from solution and immobilized chelating agents used therefor |
| 05/09/1984 | EP0108015A2 Process for recuperating heavy metals from acid solutions |
| 05/08/1984 | US4447403 Method for autoclave oxidation of ion species aqueous solutions |
| 05/01/1984 | US4446116 Process for recovering niobium and/or tantalum compounds from such ores further containing complexes of uranium, thorium, titanium and/or rare earth metals |
| 05/01/1984 | US4446114 Method of increasing the strip coefficient of the strip solution stream in a reductive stripping uranium recovery operation |
| 04/25/1984 | EP0106376A1 Process and plant for re-extracting uranium in several stages from an extractant |
| 04/18/1984 | EP0105498A2 Inorganic adsorbent, production thereof and use thereof |
| 04/17/1984 | US4443413 Separation of uranium from technetium in recovery of spent nuclear fuel |
| 04/17/1984 | US4443133 Method for achieving acceptable U3 O8 levels in a restored formation |
| 04/10/1984 | US4442071 Extraction of plutonium ions from aqueous sulfuric acid solutions with D2 EHPA or D2 EHPA/TOPO |
| 04/10/1984 | US4441920 Method for the thermal production of metals |
| 03/27/1984 | CA1164217A1 Process for selectively separating uranium and molybdenum contained in an amino-solvant |
| 03/20/1984 | US4438077 Two stage selective oxidative leach method to separately recover uranium and refractory uranium-mineral complexes |
| 03/20/1984 | US4437994 Extraction of metal ions from aqueous solution |
| 03/20/1984 | CA1163811A1 Raffinate wash of second cycle solvent in the recovery of uranium from phosphate rock |
| 03/13/1984 | US4436704 Method of recovering uranium oxide from alkaline sodium uranyl carbonate solutions |
| 03/13/1984 | CA1163447A1 Maintaining reductive strip efficiency in uranium recovery processes |
| 03/06/1984 | US4435367 Barren solvent wash by oxidized raffinate acid in the process of uranium extraction from phosphoric acid |
| 03/06/1984 | US4435366 Discharging carrier bodies |
| 02/28/1984 | US4434138 Post-deposited zirconium and titanium compounds |
| 02/22/1984 | EP0101395A1 Process for the dissolution of impure uranium tetrafluoride |
| 02/22/1984 | EP0101394A1 Process for valorizing uranium and rare earths contained in impure UF4 obtained at the uranium extraction from phosphoric acid |
| 02/21/1984 | US4432946 Uranium (VI) recovery process using acid organophosphorus extractant containing two or four alkoxyalkyl or aryloxyalkyl radicals |
| 02/21/1984 | US4432945 Removing oxygen from a solvent extractant in an uranium recovery process |
| 02/21/1984 | US4432944 Ion exchange recovery of uranium |
| 02/15/1984 | EP0100744A1 Process for extracting uranium from phosphoric acids using alkylpyrophosphoric acids |
| 02/14/1984 | US4431611 Mixtures of organic phosphonates and anionic polymers to improve acid extraction of uranium |
| 02/14/1984 | US4431610 Extraction using gypsum hemihydrate; back extraction using water; precipitation |
| 02/14/1984 | US4431609 Removal of radium from acidic solutions containing same by adsorption on coal fly ash |
| 02/14/1984 | US4431580 Oxidation to the hexavalent uranium and plutonium oxides; ion exchanging using a cationic resin |
| 02/07/1984 | US4430309 Acid wash of second cycle solvent in the recovery of uranium from phosphate rock |
| 02/07/1984 | US4430308 Heated ion exchange process for the recovery of uranium |
| 02/07/1984 | CA1161651A1 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 |
| 01/31/1984 | US4428911 Peroxidation at specific acidic ph of uranyl ion |
| 01/31/1984 | CA1161257A1 Leaching of uranium ore |
| 01/24/1984 | US4427641 Decomposition of phosphate rock with sulfuric and phosphoric acids |
| 01/24/1984 | US4427640 Separation of components free of each other |
| 01/24/1984 | US4427639 Ion exchange process |
| 01/18/1984 | EP0098510A2 Method of selectively separating plutonium from uranium and other metals |
| 01/17/1984 | CA1160459A1 Enhancement process for uranium derived from a uraniferous mineral containing arsenic |
| 01/10/1984 | US4425307 Hydrogen peroxide in sulfuric acid extraction of uranium ores |
| 01/10/1984 | US4425306 Solvent extraction, phenylpyrophosphate |
| 01/10/1984 | CA1160058A1 Process of obtaining uranium and uranium compounds from phosphoric acid |
| 01/03/1984 | US4424195 Recovery of organic extractant from secondary emulsions formed in the extraction of uranium from wet-process phosphoric acid |
| 12/27/1983 | US4423010 Process for the selective removal of arsenic in the course of the oxidizing attack by means of a carbonated liquor on a uraniferous ore containing same |
| 12/27/1983 | US4423008 Direct acid elution of anionic exchange resins for recovery of uranium |
| 12/06/1983 | USRE31456 High capacity folded moving bed ion exchange apparatus and method for treating phosphoric acid |
| 11/29/1983 | US4418042 Precipitation from carbonate leachates |
| 11/29/1983 | CA1157663A1 Uraniferous minerals oxidizing etching process with a carbonated liquid |
| 11/22/1983 | US4416860 Method and apparatus for recovering raw material, especially uranium, from natural waters, especially from the sea |
| 11/22/1983 | CA1157278A1 Solvent extraction process for the recovery of uranium |
| 11/08/1983 | US4414183 Phenolic chelate resin, process for producing the same, and method of recovering heavy metal ions with the same |
| 11/01/1983 | US4412861 Method for the recovery of uranium values from uranium tetrafluoride |
| 11/01/1983 | CA1156047A1 Recovery of uranium from material containing iron, arsenic and siliceous matter |
| 10/26/1983 | EP0092295A1 Polyetherurethane particles having absorptive activity, a method of preparing said polyetherurethane particles as well as a method for the extraction or separation of metals from liquids by employing said particles |
| 10/25/1983 | US4411873 In-line regeneration of polythionate poisoned ion exchange resins |
| 10/18/1983 | US4410497 Separation of uranium from carbonate containing solutions thereof by direct precipitation |
| 10/04/1983 | US4407781 Method of separating molybdenum from uranium |
| 10/04/1983 | US4407780 Reductive stripping of uranium values from wet-process phosphoric acid |
| 10/04/1983 | CA1154787A1 Process for the preparation of dialkyl phosphoric acid |
| 10/04/1983 | CA1154598A1 Removal of molybdenum from uranium solutions |
| 10/04/1983 | CA1154597A1 Method for extraction of uranium from ores |
| 09/27/1983 | US4406865 Binding, stripping |
| 09/27/1983 | US4406864 Recovery of uranium from material containing iron, arsenic and siliceous matter |
| 09/27/1983 | CA1154377A1 Solution mining process |
| 09/27/1983 | CA1154269A1 Recovery of uranium from sulphate solutions containing molybdenum |
| 09/27/1983 | CA1154268A1 Separation process for the recovery of uranium from wet-process phosphoric acid |
| 09/27/1983 | CA1154267A1 Extractant solvent restoration in the process for recovery of uranium from phosphoric acid |
| 09/27/1983 | CA1154266A1 Uranium extraction coefficient control in the process of uranium extraction from phosphoric acid |
| 09/20/1983 | US4405567 Uranium value leaching with ammonium carbonate and/or bicarbonate plus nitrate oxidant and optionally oxidation-catalytic metal compounds |
| 09/20/1983 | US4405566 Removal of uranium from sulphate solutions containing molybdenum |