| Patents for C22B 60 - Obtaining metals of atomic number 87 or higher, i.e. radioactive metals (1,601) |
|---|
| 09/13/1983 | CA1153562A1 Recovery of uranium values from uranium bearing material |
| 09/06/1983 | US4402921 Ammonium carbonate and/or bicarbonate plus alkaline chlorate oxidant for recovery of uranium values |
| 09/06/1983 | US4402920 Anionic hydrolyzed polyacrylamide flocculant |
| 09/06/1983 | US4402919 Precipi-tating aluminum phophate with heat and pressure |
| 09/06/1983 | US4402918 Waste water treatment; basification; acidification; ion exchanging |
| 09/06/1983 | US4402917 Extraction of uranium from phosphoric acid using supported extractants |
| 09/06/1983 | CA1153210A1 Process and unit for preparing alloyed or not, reactive metals by reduction of their halides |
| 08/30/1983 | US4401628 Process for making high quality nuclear fuel grade ammonium diuranate from uranyl fluoride solutions |
| 08/30/1983 | CA1152753A1 Process of obtaining uranium and uranium compounds from phosphoric acid |
| 08/23/1983 | US4400359 Process for the hot oxidized attack on a uraniferous ore by a concentrated alkaline liquor with simultaneous uranium precipitation |
| 08/16/1983 | US4399235 Halogenation of monovinylidene aromatic polymer in presence of organic liquid having high dielectric constant |
| 08/16/1983 | CA1151838A1 Process for recovering a uranium-containing concentrate and purified phosphoric acid |
| 08/09/1983 | US4397820 Method to maintain a high Fe+2 /Fe+3 ratio in the stripping system for the recovery of uranium from wet process phosphoric acid |
| 08/09/1983 | US4397819 Rejuvenation of the anion exchanger used for uranium recovery |
| 07/19/1983 | US4394360 Process for reducing iron in phosphoric acid solution |
| 07/19/1983 | CA1150060A1 Process for recovering uranium from wet process phosphoric acid (iii) |
| 07/19/1983 | CA1150059A1 Improved method for separating solids from the liquid in sulphur leaching of minerals containing uranium |
| 07/12/1983 | US4393028 Basification to solubilize molybdate, precipitation of uranate |
| 07/06/1983 | EP0083272A1 Liquid-liquid extraction by means of microemulsions of substances dissolved in water |
| 07/05/1983 | US4391782 In situ uranium leaching using high pressure CO2 /O2 system to overcome chloride ion inhibition |
| 05/31/1983 | CA1147288A1 Process for recovering uranium contained in a non pure phosphoric acid |
| 05/26/1983 | WO1983001793A1 Treatment for the purification of a uranium-bearing concentrate |
| 05/24/1983 | US4385037 Concentrated sulphuric acid treatment of an alkylphenyl acid phosphate extractant |
| 05/24/1983 | US4385036 Process of obtaining uranium and uranium compounds from phosphoric acid |
| 05/24/1983 | CA1146763A1 Process for reducing organic solvant losses during treatment of a suspension resulting from the acid treatment of an ore |
| 05/18/1983 | EP0079258A1 Process for extracting and separating uranium, thorium and rare earths by treating aqueous solutions of the chlorides of said elements |
| 05/17/1983 | US4383978 Alkylamine-polyphosphate salt, solvent extraction |
| 05/10/1983 | US4383104 Condensing a phenolic alkyl amine with phosphorous acid and formaldehyde; adding a phenol and an aldehyde; adsorbers; stability |
| 05/03/1983 | US4382066 Uranium extraction process |
| 05/03/1983 | CA1145669A1 Process for in-situ leaching of uranium |
| 05/03/1983 | CA1145668A1 Process for in-situ leaching of uranium |
| 04/26/1983 | US4381287 Separation of zirconium and uranium |
| 04/26/1983 | US4381286 Process for the selective separation of uranium and molybdenum which are contained in an amino solvent |
| 04/05/1983 | CA1143949A1 Uranium recovery process |
| 04/05/1983 | CA1143948A1 Uranium recovery process |
| 03/29/1983 | CA1143572A1 Uranium ore processing |
| 03/22/1983 | US4377555 Removal of metal from solution |
| 03/15/1983 | CA1143077A1 Separation of uranium by biosorption |
| 03/09/1983 | EP0073585A1 Alloy remelting process |
| 03/09/1983 | EP0073524A2 Recovery process of uranium |
| 03/08/1983 | US4376098 Two-stage uranium in situ leaching process |
| 03/08/1983 | CA1142365A1 Process for extracting uranium from contaminated phosphoric acid |
| 03/08/1983 | CA1142364A1 Global recuperation process of uranium, rare earths, thorium and yttrium from acid solutions |
| 03/01/1983 | US4375452 Process for the separation and recovery of molybdenum and uranium from leach solution using ion exchange |
| 02/22/1983 | US4374807 Method for recovering aluminum fluoride from fluorine-containing aqueous aluminum nitrate solutions |
| 02/22/1983 | US4374806 Washing ammonia laden solvent stream with phosphoric acid laden stream |
| 02/22/1983 | US4374805 Reductants for reducing metals in acid media |
| 02/17/1983 | WO1983000509A1 Selective purification of arsenical material during an alkaline process for the treatment of a uranium-bearing and/or molybdenum-bearing mineral by means of a magnesium compound |
| 02/16/1983 | EP0071679A1 Production of aluminium and uranium products |
| 02/15/1983 | US4374096 Uranium ore processing |
| 02/15/1983 | CA1141254A1 Method of increasing the separation rate of an emulsion |
| 02/08/1983 | CA1140865A1 Recovery of uranium from enriched solution by a membrane separation process |
| 02/01/1983 | US4371505 Extraction, redox systems |
| 02/01/1983 | US4371504 Extractant and process for extracting uranium wet-process phosphoric acid |
| 02/01/1983 | US4371442 Method for obtaining dissolved suspended or chemically bound substances from a liquid |
| 01/25/1983 | CA1139956A1 Process for extracting uranium from crude phosphoric acids |
| 01/25/1983 | CA1139955A1 Method of reducing radioactive waste and of recovering uranium from it |
| 01/25/1983 | CA1139954A1 Purification of wet process phosphoric acid as a pretreatment step in the recovery of uranium |
| 01/19/1983 | EP0070226A1 Process for separating trivalent actinides from trivalent lanthanides in an acidic aqueous solution |
| 12/28/1982 | US4366126 Removal of molybdenum from uranium solutions |
| 12/28/1982 | US4366090 Process for the preparation of adsorbent materials |
| 12/22/1982 | EP0067583A2 A liquid membrane process for uranium recovery |
| 12/22/1982 | EP0067582A2 An improved liquid membrane process for uranium recovery |
| 12/15/1982 | EP0066988A2 Method of recovering uranium |
| 12/14/1982 | US4363788 Separation of uranium and molybdenum using a solvent |
| 12/14/1982 | CA1137320A1 Method and apparatus for protecting an ion-exchange resin from chemical poisoning |
| 12/14/1982 | CA1137274A1 Process for producing phosphoric acid |
| 12/08/1982 | EP0066419A2 Method of recovering uranium |
| 12/01/1982 | EP0065844A1 Process for stripping uranium from an alkyl pyrophosphoric acid |
| 11/30/1982 | US4361541 Method for extraction of uranium from ores |
| 11/30/1982 | CA1136423A1 Method for reclaiming uranium from raw phosphoric acid |
| 11/17/1982 | EP0064877A1 A liquid membrane process for uranium recovery |
| 11/09/1982 | US4358426 Method for cleaning solution used in nuclear fuel reprocessing |
| 11/09/1982 | US4358158 In situ leaching using aqueous carbonic acid; reverse flow |
| 11/09/1982 | US4358157 Using dilute aqueous carbonic acid for leaching with intermittent injection of an oxidant |
| 10/28/1982 | WO1982003620A1 Method for extracting arsenic from solutions containing alcaline carbonates, sulphate, optionally hydroxide, as well as at least one of vanadium, uranium and molybdenum metals |
| 10/26/1982 | US4356154 Uranium extraction coefficient control in the process of uranium extraction from phosphoric acid |
| 10/26/1982 | US4356153 Uranium recovery process |
| 10/12/1982 | US4353877 For phosphate rock with hydrochloric acid and recovery of phosphoric acid and metal values |
| 10/12/1982 | CA1133260A1 Leach method and apparatus including means to protect ion exchange resin |
| 10/05/1982 | CA1132803A1 Ion exchange process for the recovery of uranium |
| 09/28/1982 | CA1132350A1 Reductants for reducing metals in acid media |
| 09/14/1982 | US4349513 Process for recovering uranium and/or thorium from a liquid containing uranium and/or thorium |
| 09/14/1982 | US4349512 Non-polluting treatment of alkaline uraniferous effluents containing SO.sub.= ions |
| 09/08/1982 | EP0059592A1 Process for recovering uranium |
| 09/02/1982 | WO1982002873A1 Process for recovering uranium using an alkyl pyrophosphoric acid and alkaline stripping solution |
| 08/31/1982 | US4347141 Process for removal of radioactive materials from aqueous solutions |
| 08/31/1982 | US4346936 Treatment of subterranean uranium-bearing formations |
| 08/24/1982 | CA1130199A1 In situ leaching |
| 08/17/1982 | US4344923 In-situ leaching |
| 08/10/1982 | CA1129179A1 Titanium dioxide hydrate of a particular structure and process of manufacture thereof |
| 07/27/1982 | US4341602 Extraction of uranium using electrolytic oxidization and reduction in bath compartments of a single cell |
| 07/20/1982 | US4340253 Preflush-lixiviant process for solution mining of uranium ore beds |
| 07/20/1982 | US4340252 Process for the in-situ leaching of uranium |
| 07/20/1982 | CA1127995A1 Process for extracting uranium from an organic phase |
| 07/13/1982 | US4339416 Uranium recovery process |
| 07/13/1982 | US4339414 Method for loading of uranyl ion complexes on ion exchange resin |
| 07/13/1982 | US4339152 Method and apparatus for mixing gaseous oxidant and lixiviant in an in situ leach operation |
| 07/06/1982 | US4338125 Thermal deamalgamation and reaction with methane, nitrogen or water vapor |
| 07/06/1982 | US4337979 Process for the in-situ leaching of uranium |