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| Number | Title | Issue Date |
| 7815890 | Process for tritium removal from water by transfer of tritium from water to an elemental hydrogen stream, followed by membrane diffusion tritium stripping and enrichment, and final tritium enrichment by thermal diffusion A diffusion based process for tritium removal from water by tritium transfer from water to an elemental hydrogen stream, followed by a membrane diffusion cascade for tritium stripping and enrichment, and final tritium enrichment by one or more thermal diffusion colu... | 10/19/2010 |
| 7329399 | Hydrogen trapper compound, method for the production and uses thereof A hydrogen-trapping compound is provided, along with a process for manufacturing the compound, and its uses, wherein the hydrogen-trapping compound is characterized in that it contains at least one metal salt of formula MX(OH), in which M represents a divalent trans... | 02/12/2008 |
| 7153486 | Wetproofed catalysts for hydrogen isotope exchange A method to catalyze hydrogen isotope exchange between water and hydrogen in which the water and hydrogen are contacted with a wetproofed catalyst, the catalyst having a hydrophobic porous matrix which has dispersed therein catalytically active platinum and at least... | 12/26/2006 |
| 6221331 | Method of synthesis of lithium substituted borohydride reagents and method of synthesis of reactive lithium hydride A synthetic route for forming lithium trisubstituted borohydride compounds comprises the step of reacting a processed lithium hydride reactant with a trisubstituted borane wherein the reaction is maintained for a period of time in a temperature range of a... | 04/24/2001 |
| 6146608 | Stable hydride source compositions for manufacture of semiconductor devices and structures A metal hydride derivative wherein at least one hydrogen atom is replaced by deuterium (21 H) or tritium (31 H) isotope. The metal constituent of such metal hydride may be a Group III, IV or V metal or a transit... | 11/14/2000 |
| 5942206 | Concentration of isotopic hydrogen by temperature gradient effect in soluble metal Isotopic hydrogen enrichment in a soluble metal is achieved through temperature gradient effects by applying a heat source and a heat sink to two spaced regions of the metal within which isotopic hydrogen atoms are absorbed and enclosed by a diffusion-bar... | 08/24/1999 |
| 5863495 | Hydrogen nucleus storage method and hydrogen nucleus storage unit The invention provides a hydrogen nucleus storage method and a hydrogen nucleus storage unit wherein occlusion of hydrogen nuclei and transition into a storage condition after the occlusion can be performed simply and the utilization efficiency of a mater... | 01/26/1999 |
| 5855921 | Pharmaceutical products for curing tumorous diseases and process for preparing same The invention relates to products for curing tumorous diseases, comprising as active agent water or aqueous solutons, suitable for human consumption, having a deuterium content of 0.1 to 110 ppm, optionally together with carriers and/or auxilliaries, in t... | 01/05/1999 |
| 5808120 | Method of synthesis of retinoic acid A method of synthesizing 9-cis-retinoic acid, all-trans-retinoic acid or 9-nor-retinoic acid is disclosed. The method comprises the steps of adding a Grignard reagent of ##STR1## to 2,2,6 trimethyl cyclohexanone is disclosed. R is a methyl group or H... | 09/15/1998 |
| 5792443 | Hydrogen nucleus storage method and hydrogen nucleus storage unit The invention provides a hydrogen nucleus storage method and a hydrogen nucleus storage unit wherein occlusion of hydrogen nuclei and transition into a storage condition after the occlusion can be performed simply and the utilization efficiency of a mater... | 08/11/1998 |
| 5733984 | Process for the preparation of a deuterated compound A process for the preparation of a deuterated compound, which requires neither many steps nor an expensive reagent, and is considerably economical and can be widely used for general-purposes because raw materials which can be used therein are not particul... | 03/31/1998 |
| 5700443 | Hydrogen storing member and process for storing hydrogen into the hydrogen storing member A hydrogen storing member which comprises at least two kinds of hydrogen storing materials comprising a first hydrogen storing material and a second hydrogen storing material capable of releasing or storing hydrogen in a range of at least one of temperatu... | 12/23/1997 |
| 5514821 | Ring-labeled retinoids and intermediates, and methods for their synthesis and use Methods for the synthesis of dideuterium and/or ditritium ring-labeled retinoids and intermediates, and their use in the discovery of Retinoid X Receptor ligands are provided. In addition, dideuterium and/or ditritium ring-labeled retinoids and novel inte... | 05/07/1996 |
| 5468462 | Geographically distributed tritium extraction plant and process for producing detritiated heavy water using combined electrolysis and catalytic exchange processes A geographically distributed apparatus and process for detritiating heavy water is provided. The apparatus and process provide a remote site enrichment plant for producing an enriched stream of DT/D2 gas and a hydriding unit for forming a hydri... | 11/21/1995 |
| 5391366 | Hydrogen storing member and process for storing hydrogen into the hydrogen storing member A hydrogen storing member which comprises at least two kinds of hydrogen storing materials comprising a first hydrogen storing material and a second hydrogen storing material capable of releasing or storing hydrogen in a range of at least one of temperatu... | 02/21/1995 |
| 5186868 | Methods for tritium labeling Reagents and processes for reductively introducing deuterium or tritium into organic molecules are described. The reagents are deuterium or tritium analogs of trialkyl boranes, borane or alkali metal aluminum hydrides. The process involves forming these r... | 02/16/1993 |
| 5180568 | Recovery of tritium and deuterium from their oxides and intermetallic compound useful therein There is described a process for the recovery of deuterium and tritium from their oxides, such has heavy water and tritiated water, comprising the steps of reacting the oxides of deuterium and tritium with an intermetallic compound having a formula ZrM | 01/19/1993 |
| 5093098 | Method of controlling water/hydrogen isotopic exchange reaction plant A method of controlling a single temperature type water/hydrogen isotopic exchange reaction plant comprising an electrolytic system, an exchange reaction column and a recombining system for separating degraded heavy water into product and waste both of wh... | 03/03/1992 |
| 4996033 | Catalytic method for concentrating isotopes A method for concentrating an isotope from an admixture containing the isotope by contacting the admixture with a catalyst capable of selectively catalyzing a reaction with the isotope, and recovering the concentrated isotope from the reaction products. I... | 02/26/1991 |
| 4976938 | Hydrogen isotope separation utilizing bulk getters Tritium and deuterium are separated from a gaseous mixture thereof, derived from a nuclear fusion reactor or some other source, by providing a casing with a bulk getter therein for absorbing the gaseous mixture to produce an initial loading of the getter,... | 12/11/1990 |
| 4943394 | Method of storing radioactive waste without risk of hydrogen escape In order to prevent the formation of a hydrogen atmosphere in a free gas ce usually available in the storage containers of radioactive waste, potassium permanganate is dispersed in a suitable carrier within the storage barrel provided for the waste. When... | 07/24/1990 |
| 4882093 | Process and installation for the treatment of solid organic waste contaminated by tritium The invention relates to a process and an installation for the treatment of tritium-contaminated, solid organic waste. The waste is contacted with the steam in enclosure (1) for extracting the tritium in the steam and the steam is then condensed at (11 an... | 11/21/1989 |
| 4788051 | Improvements in enrichment systems for isotopes of hydrogen and/or oxygen A new combination is disclosed of (I) a process for producing a substance enriched in a desired isotope of hydrogen and/or oxygen from a flow of liquid substance, e.g. water which becomes depleted in its content of said isotope, and (II) replenishing the ... | 11/29/1988 |
| 4743167 | Devices for the sorption, storage and release of hydrogen isotopes A device is described for the sorption of hydrogen isotopes at low pressures, their storage and their subsequent release at high pressures. Use is made of a getter material having linear sorption isotherms and a compressor material having non-linear sorpt... | 05/10/1988 |
| 4705635 | Process for enriching and separating oxides of heavy hydrogen isotopes from acid, aqueous solutions or other aqueous streams A process for the enrichment and separation of oxides of heavy hydrogen isotopes from acid, aqueous solutions or other aqueous streams employs macrocyclic aminopolyether (APE) and organic cation exchange agents. The aqueous solution or the aqueous stream ... | 11/10/1987 |
| 4695446 | Method of separating and purifying hydrogen A method of separating hydrogen from mixture with at least one gas selected from the group consisting of methane and its higher homologs, nitrogen, noble gases, CO, CO2, O2, NH3, H2 O, and H2 S, compr... | 09/22/1987 |
| 4687644 | Process and arrangement for the incremental enrichment of deuterium and/or tritium in a material suitable for the isotope exchange of deuterium and/or tritium with hydrogen A process for the incremental enrichment of deuterium and/or tritium in a material which is suitable for the isotope exchange of deuterium and tritium with hydrogen, and an arrangement for the implementation of the process. The process and arrangement for... | 08/18/1987 |
| 4673547 | Process for separation of hydrogen and/or deuterium and tritium from an inert gas flow and apparatus for effectuation of process in the cooling gas circuit of a gas-cooled nuclear reactor The invention relates to apparatus for the separation of hydrogen and/or terium and tritium from an inert gas flow which is contaminated with hydrogen and/or deuterium and/or tritium, wherein the inert gas which is to be purified is conducted along the p... | 06/16/1987 |
| 4659554 | Low-energy process for separation of hydrogen isotopes A process and apparatus are described for separating heavy isotopes of hydrogen. The process uses multiple protium-deuterium, protium-tritium or deuterium-tritium exchange reactions between a metal protide and gaseous hydrogen alternately depleted and enr... | 04/21/1987 |
| 4634454 | Method and device for separation of an isotope mixture of hydrogen, existing predominantly in molecular and/or bound form in a gas containing free materials and/or other materials in composition, from the remaining components of the gas A method and apparatus for separation of an isotope mixture of hydrogen, sting predominantly in molecular form and/or inbound form, from the remaining components of a gas. A first chamber is separated from a second chamber by a wall which is permeable fo... | 01/06/1987 |
| 4629720 | Substance for reversibly absorbing and desorbing hydrogen A substance for reversibly sorbing and desorbing hydrogen is disclosed. The substance comprises a complex dispersing 0.8-20% by weight of one or more than two oxides selected from La, Ce, Nd, Pr, Sm and Eu into ZrVx (0.01ࣘxࣘ0.7).... | 12/16/1986 |
| 4592905 | Conversion of hydrogen sulfide to sulfur and hydrogen A hydrogen sulfide gas is converted to sulfur and hydrogen gas by reacting the hydrogen sulfide and with an anthraquinone dissolved in a polar hydrocarbon solvent. The hydrogen sulfide reacts with the anthraquinone to produce sulfur and an anthrahydroquin... | 06/03/1986 |
| 4564515 | Method for separating at least one heavy isotope from a hydrogen-containing medium The multi-stage process separates at least one heavy isotope from a hydrogen-containing compound or a hydrogen containing mixture, using ammonia synthesis and a mixture of hydrogen and nitrogen. The main product is water at least substantially free of deu... | 01/14/1986 |
| 4536488 | Method of manufacturing a crystalline silica/platinum catalyst structure A crystalline, silica platinum catalyst structure is provided by soaking a hydrophobic, high surface area, crystalline silica (SiO2) lattice essentially free of aluminum oxide in the SiO2 lattice, such as silicalite in an aqueous sol... | 08/20/1985 |
| 4533539 | Process and arrangement for the incremental enrichment of deuterium and/or tritium in a material suitable for the isotope exchange of deuterium and/or tritium with hydrogen A process for the incremental enrichment of deuterium and/or tritium in a material which is suitable for the isotope exchange of deuterium and tritium with hydrogen, and an arrangement for the implementation of the process. The process and arrangement for... | 08/06/1985 |
| 4519996 | Method for enriching and separating heavy hydrogen isotopes from substance streams containing such isotopes by means of isotope exchange A process for enriching and separating heavy hydrogen isotopes having a heavy hydrogen cation (deuterium and/or tritium) from substance streams containing them, wherein the respectively present hydrogen isotopes are exchanged in chemical equilibria. A pro... | 05/28/1985 |
| 4514377 | Process for the exchange of hydrogen isotopes between streams of liquid water and gaseous halohydrocarbon and an apparatus therefor Hydrogen isotope (e.g. deuterium) exchange from liquid water to a gaseous halohydrocarbon (e.g. fluoroform, CF3 H--CF3 D) is obtained at an operating temperature in the range 0° to 100° C. using a catalytically active mass comprisi... | 04/30/1985 |
| 4504460 | Method and plant for obtaining deuterium-enriched water The synthesis gas plant is operated in n successive periods. During the first period, fresh water in excess is supplied to the synthesis gas plant (1) and the waste water from the resulting mixture is separated in a condenser (8) and supplied to a storage... | 03/12/1985 |
| 4470961 | Utilization of impure steam and recovery of deuterium therefrom Certain impure steams, especially those from geothermal sources, are polluted with hydrogen sulfide, ammonia, carbon dioxide, other gases, and finely divided particulate solid matter in a form resembling dust or smoke. These contaminants reduce the effici... | 09/11/1984 |
| 4444737 | Process for separating and recovering hydrogen isotope Hydrogen isotope is separated and recovered with remarkable reduction in energy consumption in a compact apparatus using a cold reactor and a hot reactor based on dual temperature process by a combination of a first step of at least one isotope exchange r... | 04/24/1984 |
