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| Number | Title | Issue Date |
| 6960311 | Radiation shielding materials and containers incorporating same An improved radiation shielding material and storage systems for radioactive materials incorporating the same. The PYRolytic Uranium Compound (“PYRUC”) shielding material is preferably formed by heat and/or pressure treatment of a precursor material comprising m... | 11/01/2005 |
| 5494863 | Process for nuclear waste disposal The present invention relates to a process for nuclear waste disposal. In it, a glass forming mixture including an aqueous solution of one or more metal alkoxides, alcohol, and solubilized, low level radioactive waste having a pH effective to hydrolyze th... | 02/27/1996 |
| 5478389 | Pollution remedial composition and its preparation Pollution remedial compositions are disclosed which comprise a soluble silicate, a surfactant, a polyol, and water.... | 12/26/1995 |
| 5390218 | Process for preparing a fuel pellet for nuclear reactor A process of preparing a fuel pellet for a nuclear reactor, comprising washing the gel particle using an organic solvent miscible with water to substitute the organic solvent for the water, removing the organic solvent, moistening again the dry gel partic... | 02/14/1995 |
| 5382388 | Process for the preparation of rhenium-188 and technetium-99m generators Process for preparing a radionuclide generator for producing Tc-99m or Re-188. A clear solution containing a metallic cation and an anion comprising W-188 or Mo-99 is provided. The metallic cation is present in the solution as a dissolved complex of the m... | 01/17/1995 |
| 5278379 | Continuous denitration apparatus which uses microwave heating A continuous denitration apparatus by microwave heating comprises an oven into which microwaves are applied and a cylindrical rotary drum disposed horizontally and rotatably disposed inside the oven. The rotary drum has the outer peripheral surface compos... | 01/11/1994 |
| 4970062 | Colloid labelled with radionuclide and method A ferric hydroxide colloid having an alpha-emitting radionuclide essentially on the outer surfaces and a method of forming same. The method includes oxidizing a ferrous hydroxide to ferric hydroxide in the presence of a preselected radionuclide to form a ... | 11/13/1990 |
| 4859368 | Process for the containment of materials in a ceramic matrix through the chemical precipitation of a hydrosol of the matrix A process for the embedding or containment of waste materials, especially of radioactive waste materials, by embedding in a ceramic matrix through the intermediary of the chemical precipitation of a hydrosol of the matrix, which is formed through the reac... | 08/22/1989 |
| 4855081 | Method for decontaminating conventional plastic materials which have become radioactively contaminated, and articles A method 20 for decontaminating plastic products and materials which have become radioactively contaminated. The treatment method 20 involves dissolving such plastics in a dissolution tank 28 in an organic solvent and treating the resulting solution by a ... | 08/08/1989 |
| 4839103 | Method for obtaining a solution of nuclear fuel not readily dissovable, especially of PuOhd 2 or (U/Pu)O2 mixed oxide Not readily dissolvable nuclear fuel is dissolved in an airtight closed vessel or autoclave. Nitric acid is evaporated and condensed in the vessel and the nitric acid condensate trickles over the nuclear fuel disposed outside of the nitric acid undergoing... | 06/13/1989 |
| 4839101 | Process for improving the effectiveness of the removal of zirconium from a nuclear fuel and/or fertile material solution The invention relates to a process for improving the effectiveness of the removal of zirconium from an aqueous, zirconium-containing nuclear fuel and/or fertile material solution in nitric acid in a liquid-liquid extraction process. Accordingly, the objec... | 06/13/1989 |
| 4778627 | Disposable hazardous and radioactive liquid hydrocarbon waste composition and method An improved method of disposing of radioactive or hazardous liquid hydrocarbon compositions comprises placing the liquid hydrocarbons in a container and adding an organic ammonium montmorillonite in ratios of between about 1:2 and 3:1, by volume, respecti... | 10/18/1988 |
| 4627937 | Process for denitrating nitric acid and actinide containing waste solutions while simultaneously separating the actinides A process for denitrating aqueous, nitric acid and salt containing waste solutions in which actinides are present, with simultaneous separation of the actinides, comprises agitating the waste solution at room temperature with diethyl oxalate and heating t... | 12/09/1986 |
| 4612138 | Stable acidic and alkaline metal oxide sols A stable acidic and alkaline metal oxide sol is formed by hydrolyzing a metal salt precursor in the presence of a stabilizing component chosen from the group consisting of surfactants having an HLB of at least 8, dispersing carboxylate polymers, and mixtu... | 09/16/1986 |
| 4571332 | 125 I and 131 I labeled phospholipids N-(3-(3-125 iodo, 4-hydroxybenzyl)propionyl)phosphatidylethanolamine[125 I-phenylpropionyl-PE], a nonexchangeable iodinated lipid of high specific radioactivity is disclosed, with a method for its synthesis as well as the synthe... | 02/18/1986 |
| 4477377 | Recovery of cesium A process of recovering cesium ions from mixtures of ions containing them and other ions, e.g., a solution of nuclear waste materials, which comprises establishing a separate source phase containing such a mixture of ions, establishing a separate recipien... | 10/16/1984 |
| 4404105 | Process for treatment of waste Process for the irreversible treatment of toxic waste by means of a silicate, in the presence of water, in such a way as to form a solid aggregate includes treatment of the silicate in an acid medium, for the purpose of obtaining silicic acid of low molec... | 09/13/1983 |
| 4397778 | Coprocessed nuclear fuels containing (U, Pu) values as oxides, carbides or carbonitrides Method for direct coprocessing of nuclear fuels derived from a product stream of a fuels reprocessing facility containing uranium, plutonium, and fission product values comprising nitrate stabilization of said stream vacuum concentration to remove water a... | 08/09/1983 |
| 4396560 | Process for the continuous removal of undesirable components of solid particles by a solvent applied in counterflow A cyclical and automatable process and apparatus for continuously removing undesired components from solid particles by means of a solvent, the process including maintaining an expanded bed of solid particles in a vertical column, supplying a suitable sol... | 08/02/1983 |
| 4384990 | Uranyl nitrate pouring solution for producing nuclear fuel particles and a method for its preparation Sorbitol, or another polyalcohol such as erythritol, dulcitol or xylitol, is added to a solution containing uranyl nitrate which may also contain another heavy metal, such as throium or plutonium, prior to preneutralization with ammonia in order to provid... | 05/24/1983 |
| 4382885 | Method for producing nuclear fuel Nuclear fuel is made by contacting an aqueous solution containing an actinide salt with an aqueous solution containing ammonium hydroxide, ammonium oxalate, or oxalic acid in an amount that will react with a fraction of the actinide salt to form a precipi... | 05/10/1983 |
| 4382026 | Process for encapsulating radioactive organic liquids in a resin Radioactive organic liquids are converted to a form suitable for burial by the process wherein the liquid is contacted with insoluble, swellable polymer particles to form swollen gelled particles which are dispersed in an unsaturated polyester, vinyl este... | 05/03/1983 |
| 4271037 | Device for the production of sol-gel globules in coarse and fine fractions A device for the production of sol-gel globules for sphere-pac nuclear fuel includes a vertical gelling column opening into an elongated vat through its bottom wall, the vat receiving a horizontal gelling stream issuing from a ribbon nozzle. The bottom wa... | 06/02/1981 |
| 4217240 | Stable aluminosilicate aquasols having uniform size particles and their preparation An amorphous aluminosilicate sol with uniform size particles is prepared by a process comprising (1) preparing a sol of discrete colloidal particles of uniform size, the surface of which consists of a coating of an aluminosilicate by separately and simult... | 08/12/1980 |
| 4154698 | Resolution of oil-in-water emulsions containing uranium A method of resolving oil-in-water emulsions resulting from the organic solvent extraction of uranium from aqueous acidic leach liquors which comprises treating said emulsions in accordance with the following steps: (a) adding to said emulsions a water-in-oil ... | 05/15/1979 |
| 4070438 | Method for loading resin beds An improved method of preparing nuclear reactor fuel by carbonizing a uranium loaded cation exchange resin provided by contacting a H+ loaded resin with a uranyl nitrate solution deficient in nitrate, comprises providing the nitrate deficient s... | 01/24/1978 |
| 4051160 | Cis-4,5-didehydro-11-deoxy-13,14-dihydro-PG compounds This invention relates to a group of cis-4,5-didehydro-11-deoxy-PG1 analogs having variable chain length, optional methyl substitution in the methyl-terminated side-chain, and processes for making them. These compounds are useful for a variety ... | 09/27/1977 |
| 4000085 | Process for manufacturing gels containing iron and molybdenum and the uses thereof Gels containing molybdenum and iron and optionally other metals, are useful in the production of catalysts or as optical filters. They are produced by conducting essentially a solid - solid reaction between a compound of molybdenum, e.g. ammonium molybdat... | 12/28/1976 |
| 3993578 | Process for controlling the geometrical properties of particles of ceramic materials In the preparation of microspheres of nuclear fuel by feeding droplets of an aqueous solution of a salt of a metal constituting the nuclear fuel that is precipitated by a basic medium and a resin that increases in viscosity in the presence of an alkali in... | 11/23/1976 |
| 3935120 | Anion-deficient actinide nitrate solution The invention relates to a method for the preparation of aniondeficient actinide nitrate solutions. Anion deficient actinide nitrate solutions are used for the preparation of ceramic spherical ceramic nuclear fuel. According to the invention one or more actini... | 01/27/1976 |
