Radioactive Patents (Class 210/682)
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Patent number: 11851350Abstract: A method for removing a contaminant from a fluid is provided. A positively charged layered double hydroxide is combined with a negatively charged clay material to form adsorption material. The adsorption material is contacted with an aqueous solution containing the contaminant to adsorb the contaminant onto the adsorption material.Type: GrantFiled: October 25, 2017Date of Patent: December 26, 2023Assignee: National Technology & Engineering Solutions of Sandia, LLCInventors: Yifeng Wang, Andy Miller, Jessica N. Kruichak, Melissa Marie Mills, Hernesto Tellez
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Patent number: 11264143Abstract: Solid nanocomposite material comprising nanoparticles of a hexacyanometallate or octacyanometallate of an alkali metal and of a transition metal, of formula [Alk+x]Mn+[M?(CN)m]z? in which Alk is an alkali metal, x is 1 or 2, M is a transition metal, n is 2 or 3, M? is a transition metal, m is 6 or 8, z is 3 or 4, attached to at least one surface of a porous inorganic solid support, in which the nanoparticles are attached by adsorption to the at least one surface of the solid support, and in which the surface is a basic surface. Method for preparing this material. Method for extracting at least one metal cation from a liquid medium containing it, wherein the liquid medium is brought into contact with the material.Type: GrantFiled: September 6, 2017Date of Patent: March 1, 2022Assignees: COMMISSARIAT A L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, ORANO CYCLEInventors: Agnès Grandjean, Virginie Fremy, Alexandre Charlot, Yves Barre
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Patent number: 11242314Abstract: The present disclosure relates to the methods for the preparation of reactive [F-18]fluoride in a form of [F-18]sulfonyl fluoride suitable for efficient radiolabeling without an azeotropic evaporation step by the use of anion exchange resin and sulfonyl chloride, and its applications in the manufacturing of PET radiopharmaceuticals.Type: GrantFiled: January 11, 2017Date of Patent: February 8, 2022Assignee: Washington UniversityInventors: Dong Zhou, Wenhua Chu
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Patent number: 11155895Abstract: The disclosed subject matter relates to a method for obtaining cesium from aqueous solutions.Type: GrantFiled: July 9, 2018Date of Patent: October 26, 2021Assignee: Albemarle Germany GmbHInventors: Rainer Dietz, Johannes Willems, David Wohlgemuth, Henrike Rempel
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Patent number: 10525435Abstract: The present invention provides a system for the production of a radiopharmaceutical including a radiosynthesis apparatus and a disposable cassette. The system of the invention includes a device that enables a position on the cassette to be freed for inclusion of an additional reagent vial. With the system of the invention a broader range of radiochemical syntheses can be envisaged using the cassette.Type: GrantFiled: March 10, 2016Date of Patent: January 7, 2020Assignee: GE HEALTHCARE LIMITEDInventors: Xavier Franci, Philippe Dumont, Steve Lignon, Audrey Marie Lange, Nicolas Verbrugge
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Patent number: 10246367Abstract: The invention relates to a method for producing a solid nanocomposite material comprising nanoparticles of a metal coordination polymer with ligands CN, said nanoparticles satisfying the formula [Alk+x]Mn+[M?(CN)m]z? where Alk is an alkali metal, x is 1 or 2, M is a transition metal, n is 2 or 3, M? is a transition metal, m is 6 or 8, and z is 3 or 4; said Mn+ cations of the coordination polymer being bound by an organometallic bond or a coordination bond to an organic group R2 of an organic graft, and said organic graft furthermore being chemically attached, preferably by a covalent bond, to at least one surface of a solid support, by reaction of a group R1 of said graft with said surface.Type: GrantFiled: September 11, 2015Date of Patent: April 2, 2019Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Agnès Grandjean, Yves Barre
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Patent number: 10192648Abstract: The invention relates to systems, apparatus and methods for the removal of cesium and other radionuclides from liquid waste contained in a high level waste tank. The invention includes transporting a stream of the liquid waste from the high level waste tank to one or more ion-exchange column assemblies to remove the cesium therefrom using a sorbent, such as, crystalline silico-titanate. The ion-exchange column assemblies include an ion-exchange column and an integrated shield. The column is concentrically positioned within the shield and an air gap is present between the column and the shield to provide passive cooling.Type: GrantFiled: September 20, 2016Date of Patent: January 29, 2019Assignee: Westinghouse Electric Company LLCInventors: Mark A. Beck, Thomas J. Gammon, Gregory B. Harting
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Patent number: 10141080Abstract: The present disclosure relates to an insoluble cesium mixed multimetal oxide, ceramic, glass-ceramic or glass which is intended to be a replacement for cesium chloride or similar materials used as radiation sources. Additionally, this insoluble compound could replace other insoluble lower specific activity cesium compounds used in industrial, underwater, and underground/downhole application because it would allow the use of older lower specific activity cesium stock solutions. The disclosure further provides a method for the cesium to be recovered from cesium chloride sources.Type: GrantFiled: February 11, 2015Date of Patent: November 27, 2018Assignee: QSA GLOBAL, INC.Inventors: Mark W. Vose, Mark Shilton
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Patent number: 10112125Abstract: A treatment method for a used ion exchange resin, includes: bringing a used ion exchange resin into contact with a reaction solution, the used ion exchange resin having an ion exchange group with at least a radionuclide or a heavy metal element adsorbed thereon, and the reaction solution containing an iron compound, hydrogen peroxide, and ozone; separating at least a part of the reaction solution in contact with the used ion exchange resin from the used ion exchange resin; and decomposing an organic component contained in the reaction solution separated from the used ion exchange resin.Type: GrantFiled: February 19, 2016Date of Patent: October 30, 2018Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Toshiaki Sugimori, Shinya Miyamoto, Seiichi Murayama, Takaaki Murata, Yumi Yaita, Masaaki Kaneko
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Patent number: 10000825Abstract: The present invention relates to a process, method and plant for recovering scandium and ions containing scandium using an ion exchange resin from a feed stream. The feed stream may be, but is by no means limited to, a leach liquor or leach pulp.Type: GrantFiled: December 10, 2013Date of Patent: June 19, 2018Assignee: Clean TeQ Pty LtdInventors: Peter Voight, Nikolai Zontov, John Carr
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Patent number: 9744518Abstract: This invention is directed to amorphous and crystalline titanosilicate materials that have an unexpected selectivity for cesium and strontium, especially in the presence of high levels of competing ions. The titanosilicates of this invention show very high, unexpected selectivity in the presence of such competing cations such as sodium, calcium, magnesium and potassium, such as present in seawater.Type: GrantFiled: January 7, 2014Date of Patent: August 29, 2017Assignee: BASF CorporationInventors: Alfonse Maglio, David Durocher
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Patent number: 9533877Abstract: A first ion rich dielectric substrate with a patterned dielectric barrier and a oxidizable metal layer is anodically bonded to a second ion rich dielectric substrate. To bond the substrates, the oxidizable metal layer is oxidized. The dielectric barrier may inhibit the migration of these ions to the bondline, which might otherwise poison the bond strength. Accordingly, when joining the two substrates, a strong bond is maintained between the wafers.Type: GrantFiled: April 14, 2016Date of Patent: January 3, 2017Assignee: Innovative Micro TechnologyInventor: Benedikt Zeyen
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Patent number: 9352982Abstract: Methods of removing smectite clay from water using Wollastonite and a method of removing toxic materials from the Wollastonite treated water. In addition, the method comprises removing toxic materials from water using only the Wollastonite.Type: GrantFiled: June 30, 2014Date of Patent: May 31, 2016Inventors: Warde Collins, Michael Wolgast
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Patent number: 9283494Abstract: A liquid chromatography agglomerated bed comprising component A comprising (a) substrate particles and polymer chains (e.g. a condensation polymer) bound to the substrate particles and projecting therefrom, and (b) component B comprising substrate particles having external surfaces of opposite charge to that of the charged polymer chains, components A and B being bound at least in part by electrostatic forces between the component A charged polymer chains and the component B external surfaces to form in composite an agglomerated bed of ion exchange particles packed in a chromatography column.Type: GrantFiled: September 16, 2005Date of Patent: March 15, 2016Assignee: DIONEX CORPORATIONInventors: Christopher A. Pohl, Charanjit Saini
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Patent number: 9178796Abstract: In one embodiment, a stateful computing entity in a computer network determines underlying network information (physical and/or optical) for the computer network, and also determines topologies (Internet Protocol (IP) and/or Multiprotocol Label Switching (MPLS)) for the computer network and associated resource information. Further, the stateful computing entity determines label switched path (LSP) state information for the computer network. The stateful computing entity may then build network state knowledge by aggregating the underlying network information, the topologies and associated resource information, and the LSP state information, and establishes communication within a dynamic network of other stateful computing entities sharing network state knowledge for parallel computation performance. Accordingly, the stateful computing entity may perform network computation based on the network state knowledge.Type: GrantFiled: June 28, 2013Date of Patent: November 3, 2015Assignee: Cisco Technology, Inc.Inventors: Stefano Previdi, Jean-Philippe Vasseur, Jan Medved, David Ward, Clarence Filsfils, Christopher Metz
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Publication number: 20150136704Abstract: Radioactive strontium is efficiently removed from wastewater containing radioactive strontium. In a treatment method for radioactive strontium-containing wastewater, wastewater containing radioactive strontium and a powdery alkali metal titanate are mixed in a stirrer-equipped reaction tank by stirring such that radioactive strontium in the wastewater is adsorbed on the powdery alkali metal titanate, followed by subjecting the powdery alkali metal titanate having radioactive strontium adsorbed thereon to solid-liquid separation. The radiation dose of treated water can be effectively reduced in such a manner that a powder of an alkali metal titanate is directly added to radioactive strontium-containing wastewater and is dispersed therein and therefore radioactive strontium is efficiently removed by adsorption.Type: ApplicationFiled: May 21, 2013Publication date: May 21, 2015Inventors: Koichi Mori, Satoshi Yamada, Nobuki Itoi, Hiroyoshi Mori, Toshiki Gotou
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Publication number: 20150136707Abstract: Aluminum silicate having a large cesium ion adsorption capacity and a production process therefor. (1) The aluminum silicate is represented by the following formula (I): xNa2O·Al2O3·mSiO2·nH2O??(I) (wherein 0.12?x?1.3, 5.0?m?15.0, and 5?n?15), (2) the Na2O content of the aluminum silicate is 1.5 to 11.0 wt %, and (3) at least 50% of aluminum atoms are tetra-coordination aluminum atoms.Type: ApplicationFiled: May 31, 2013Publication date: May 21, 2015Inventor: Takafumi Suzuki
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Publication number: 20150129504Abstract: Methods are described for the removal of highly soluble radioactive anions, e.g., radioactive technetium and/or radioiodide, from an aqueous solution. The methods utilize a sequestering agent that includes an organoclay, i.e., a clay with an intercalated cationic quaternary amine, as a sorbent for highly soluble radioactive anions that are present within an aqueous solution. In exemplary embodiments, the method can be utilized to treat aqueous waste at a nuclear power facility or to treat a groundwater contamination site or a soil or sediment contaminated site.Type: ApplicationFiled: November 14, 2013Publication date: May 14, 2015Applicant: Savannah River Nuclear Solutions, LLCInventors: Daniel I. Kaplan, Anna S. Knox, Kimberly P. Crapse, Dien Li, David P. DiPrete
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Patent number: 9028587Abstract: A method is described for obtaining purified 68Ga. The method comprises eluting 68Ga from a sorbent in and/or on which are sorbed 68Ga and 68Ge, so as to generate a crude 68Ga solution. The sorbent should have a higher affinity for 68Ge than for 68Ga. The crude 68Ga solution is then applied to a medium cation exchange resin, and the resin is eluted with an aqueous alcohol so as to retain the 68Ga on the resin and remove unwanted species from the resin. The resin is then eluted with an eluent, which may be an acidic solution, an alkaline solution or a solution of a species capable of complexing 68Ga ions, so as to obtain an eluate comprising purified 68Ga ions.Type: GrantFiled: March 3, 2011Date of Patent: May 12, 2015Assignee: Australian Nuclear Science and Technology OrganisationInventor: Van So Le
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Publication number: 20140346115Abstract: There is provided an aggregate of radioactive material removing particles in which two or more radioactive material removing particles having magnetic particles and a radioactive material adsorption component are assembled, wherein a pore volume in the aggregate is 0.5 mL/g or more and 5.0 mL/g or less, and the pore volume means a cumulative value obtained by a mercury press-in method.Type: ApplicationFiled: May 19, 2014Publication date: November 27, 2014Inventors: Yoshihisa NAMIKI, Toshihiko UEYAMA, Takayuki YOSHIDA
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Patent number: 8889010Abstract: A method for treating low barium frac water includes contacting a frac water stream with a radium selective complexing resin to produce a low radium stream, passing the low radium stream through a thermal brine concentrator to produce a concentrated brine; and passing the concentrated brine through a thermal crystallizer to yield road salt.Type: GrantFiled: July 25, 2011Date of Patent: November 18, 2014Assignee: General Electric CompanyInventors: James Manio Silva, Hope Matis, William Leonard Kostedt, IV
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Patent number: 8864872Abstract: A method for the recovery of uranium from pregnant liquor solutions that comprise levels of chloride of 5 to 80 g/L by using an amino phosphonic functionalized resin. The method includes providing an amino phosphonic functionalized resin; providing a pregnant liquor solution comprising and uranium; passining the pregnant liquor solution over the amino phosphonic functionalized resin to separate the uranium from the pregnant liquor solution; and eluting the uranium.Type: GrantFiled: November 22, 2011Date of Patent: October 21, 2014Assignee: Rohm and Haas CompanyInventor: Areski Rezkallah
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Patent number: 8858901Abstract: The invention relates to the use of a compound of the formula KmgF3 to trap metals in the form of fluorides and/or of oxyfluorides in a gaseous or liquid phase. It also relates to a compound of the formula KMgF3 which has a surface area at least equal to 30 m2/g and at most equal to 150 m2/g and also to its methods of preparation. The invention notably finds application in the nuclear industry, in which it can advantageously be used to purify uranium hexafluoride (UF6) present in a gaseous or liquid stream, with regard to metal impurities which are also present in this stream.Type: GrantFiled: June 8, 2012Date of Patent: October 14, 2014Assignee: COMURHEX Société pour la Conversion de l'Uranium en Métal et HexafluorureInventors: Bertrand Morel, Lorraine Leite, Laurent Moch, Alain Demourgues, Romain Clarenc, Alain Tressaud, Etienne Durand
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Publication number: 20140234186Abstract: A process for extracting Cs-137 from i) an acidic solution obtained by dissolving an irradiated solid target comprising uranium, ii) an acidic solution comprising uranium which has previously been irradiated in a nuclear reactor, or iii) an acidic solution comprising uranium which has been used as reactor fuel in a homogeneous reactor, the acidic solution i), ii) or iii) having been treated to harvest Mo-99, wherein the process comprises contacting the treated acidic solution with an adsorbent comprising ammonium molybdophosphate (AMP). In an embodiment, the AMP is combined with an organic or inorganic polymeric support, for example AMP synthesised within hollow aluminosilicate microspheres (AMP-C).Type: ApplicationFiled: October 6, 2011Publication date: August 21, 2014Inventor: Luis A.M.M. Barbosa
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Patent number: 8802014Abstract: The invention is related a novel structure for Ga-68 radionuclide generator. It allows two washing solutions to pass through two Ge-68 absorbents to wash out different chemical forms of Ga-68 nuclide. The invention comprises the first method that will withdraw hydrochloric acid solution from the washing bottle and pass it through inorganic resin absorbing column to produce the radioisotope solution of Ga-68 gallium chloride, and the second method that will allow the radioisotope solution of Ga-68 gallium citrate to pass the organic resin absorbing column and then the silica-gel cartridge, and be washed by the hydrochloric acid solution to obtain the radioisotope solution of Ga-68 gallium chloride.Type: GrantFiled: October 3, 2011Date of Patent: August 12, 2014Assignee: Institute of Nuclear Energy ResearchInventors: Ming-Hsin Li, Jin-Jenn Lin, Ther-Jen Ting, I-Lea Dai
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Publication number: 20140190892Abstract: This invention is directed to amorphous and crystalline titanosilicate materials that have an unexpected selectivity for cesium and strontium, especially in the presence of high levels of competing ions. The titanosilicates of this invention show very high, unexpected selectivity in the presence of such competing cations such as sodium, calcium, magnesium and potassium, such as present in seawater.Type: ApplicationFiled: January 7, 2014Publication date: July 10, 2014Applicant: BASF CorporationInventors: Alfonse Maglio, David Durocher
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Patent number: 8753518Abstract: In one aspect the invention provides a system for treating a wastestream, particularly a radwaste, for safe disposal and, in final processing converting it into one or both forms including an aqueous form for safe discharge to the environment and a solidified form for safe disposal. In another aspect the invention provides the capacity to employ a step where a specific target element strategy can be set up synchronizing sorbent substance choices and multiple recycle options to remove target substances from wastestream as a part of its Sorption or Powder Sorbent Isotopic Reduction step (II). Other steps cooperate with Sorption step (II) including Oxidation (I), Solid-Liquid separation (III), and Selective Ion Exchange (IV) to deliver the wastestream to final processing.Type: GrantFiled: September 25, 2011Date of Patent: June 17, 2014Assignee: Diversified Technologies Services, Inc.Inventors: Dennis A. Brunsell, Charles E. Jensen, Larry E. Beets
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Publication number: 20140158627Abstract: A cation adsorbent of an embodiment includes tungsten oxide particles having a BET specific surface area in a range of 0.82 m2/g or more and 820 m2/g or less. The cation adsorbent is added to a solution to be treated containing cations being recovery objects, and the cation adsorbent adsorbing the catious is precipitated. The generated precipitate is separated from the solution to recover the cations.Type: ApplicationFiled: February 18, 2014Publication date: June 12, 2014Applicants: Toshiba Materials Co., Ltd., Kabushiki Kaisha ToshibaInventors: Akira SATO, Daisuke FUKUSHI, Takao KUSAKA, Kayo NAKANO, Yukiko INUI, Akito SASAKI
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Patent number: 8696911Abstract: The invention relates to a continuous process for decontaminating a radioactive liquid effluent comprising one or more radioactive chemical elements to be removed that comprises the following steps: a step of bringing said radioactive liquid effluent into contact, in a first reactor, with solid particles capable of capturing and retaining said radioactive chemical element(s) to be removed, by means of which a suspension of solid particles containing said radioactive chemical element(s) to be removed is obtained; a step of settling said suspension, in a second reactor, by means of which a solid phase is obtained that comprises the solid particles containing said radioactive chemical element(s) to be removed and a liquid phase depleted or devoid of said radioactive chemical element(s) to be removed; a step of separating said solid phase and said liquid phase; characterized in that a portion of said solid phase obtained at the end of the settling step is reinjected into the first reactor for the implementatioType: GrantFiled: February 17, 2009Date of Patent: April 15, 2014Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: Vincent Pacary, Yves Barre, Edouard Plasari
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Publication number: 20140061135Abstract: A bio-inspired method for detoxifying contaminated water is disclosed. In the method, polydopamine, a mussel-inspired adhesive catecholamine was used as an adsorbent to effectively remove from contaminated water three major classes of toxic agents: heavy metal ions (e.g., Cr, Hg, Pb, Cu, and Cd), toxic organic species (e.g., 4-aminopyridine), and radioisotopes (e.g., Lutetium-177). Furthermore, the polydopamine adsorbent was regenerated by treatment with acid or hydrogen peroxide.Type: ApplicationFiled: August 29, 2013Publication date: March 6, 2014Applicant: NORTHWESTERN UNIVERSITYInventors: Phillip B. Messersmith, Haeshin Lee
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Patent number: 8663479Abstract: Methods and compositions for removing radium from drinking water using a natural zeolite.Type: GrantFiled: November 20, 2007Date of Patent: March 4, 2014Assignee: WRT International LLCInventors: John E. Litz, Charles S. Williams
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Patent number: 8641903Abstract: The present invention is related to a method to obtain reactive [18F] fluorides in an organic medium suitable for radiolabelling without any azeotropic evaporation step, by the use of a solid phase extraction column containing a modified non-ionic solid support.Type: GrantFiled: April 22, 2008Date of Patent: February 4, 2014Assignees: Trasis S.A., Universite de LiègeInventors: Samuel Voccia, Joël Aerts, Christian Lemaire, André Luxen, Jean-Luc Morelle, Gauthier Philippart
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Patent number: 8557201Abstract: The present invention is directed to a new more environmentally friendly method for the recovery of uranium from pregnant liquor solutions that comprise high concentration of sulfate by using an amino phosphonic functionalized resin.Type: GrantFiled: August 8, 2012Date of Patent: October 15, 2013Assignee: Rohm and Haas CompanyInventor: Areski Rezkallah
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Publication number: 20130186835Abstract: A method and system of providing ultrapure water for semiconductor fabrication operations is provided. The water is treated by utilizing a free radical scavenging system and a free radical removal system. The free radical scavenging system can utilize actinic radiation with a free radical precursor compound, such as ammonium persulfate. The free radical removal system can comprise use of a reducing agent. The ultrapure water may be further treated by utilizing ion exchange media and degasification apparatus. A control system can be utilized to regulate addition of the precursor compound, the intensity of the actinic radiation, and addition of the reducing agent to the water.Type: ApplicationFiled: March 8, 2013Publication date: July 25, 2013Applicant: SIEMENS INDUSTRY, INC.Inventor: Bruce Lee Coulter
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Patent number: 8491790Abstract: A method to extract out of an aqueous solution, concentrate and/or reformulate [18F] fluorides without any evaporation step wherein the eluting solution is a organic solution having a water content <3%. The solution contains at least: an organic solvent suitable for the subsequent radiolabelling reaction; a first compound (A) which is a molecule containing at least one acidic hydrogen and a second compound (B) which is an organic base sufficiently strong to be able to tear off the acidic hydrogen of the first compound (A) in an acid-base reaction leading to the formation of an organic salt (S).Type: GrantFiled: July 1, 2008Date of Patent: July 23, 2013Assignees: Trasis S.A., Universite de LiègeInventors: Christian Lemaire, Samuel Voccia, Joël Aerts, André Luxen, Jean-Luc Morelle, Gauthier Philipart
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Publication number: 20130161260Abstract: The present disclosure provides, in an embodiment, a system for treating a contaminated fluid. The system may include multiple shielded modules in fluid communication with one another. Each module of the system of the present disclosure may include an inner pressure vessel designed to accommodate a treatment medium, the treatment medium being selected to remove radioactive contaminants from a fluid passed through the pressure vessel. The module may also include an outer shield vessel surrounding the pressure vessel and designed to attenuate the radiation from the radioactive contaminants accumulated by the treatment medium in the pressure vessel and facilitate ease of handling and storage of the module together with the contaminated treatment medium. Finally, an annular region may be defined between the pressure vessel and the shield vessel for passing a cooling medium therethrough to remove decay heat from the radioactive contaminants accumulated in the pressure vessel.Type: ApplicationFiled: November 2, 2012Publication date: June 27, 2013Applicants: AVANTECH INCORPORATED, SHAW GLOBAL SERVICES, LLCInventors: SHAW GLOBAL SERVICES, LLC, AVANTECH INCORPORATED
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Publication number: 20130161261Abstract: Method and systems are provided for the removal of metal contaminants from aqueous mediums using a chamber containing activated sorptive media and a primary ligand and optionally, a secondary ligand that has been loaded onto the activated sorptive media using hydraulic loading. In at least one embodiment, the methods and systems include a pre-treatment of the sorptive media, a specific volume of the activated sorptive media within the chamber, specific pH ranges of aqueous mediums, and hydraulic loading of the primary ligand and optionally, a secondary ligand, known as dynamic fluidized loading. In at least one embodiment, pore pressures of the seeding solution within the media are at least sufficient to overcome the gravitational forces acting on the media within the column. The methods and systems provide for a highly uniform and predictable loading of the primary ligand and optionally, the secondary ligand, onto the activated sorptive media throughout the sorptive media within the chamber.Type: ApplicationFiled: December 21, 2012Publication date: June 27, 2013Applicant: TUSAAR INC.Inventor: Tusaar Inc.
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Patent number: 8454912Abstract: Disclosed herein is an radioisotope adsorbent including a bifunctional organosilane compound, including an organosiloxane functional group and a phosphate group, bonded on the surface of silica which is a bone structure of the adsorbent, and a method of preparing the radioisotope adsorbent, and a strontium/yttrium generator using the radioisotope adsorbent. Since the radioisotope adsorbent has a high adsorption capacity for 90Y such as 95% extraction efficiency or more from ICi 90Sr/90Y by using a column packed with 0.4 g of the adsorbent with a high-purity of 90Y, it can be usefully to be employed in the fields requiring 90Y.Type: GrantFiled: March 27, 2009Date of Patent: June 4, 2013Assignee: Korea Atomic Energy Research InstituteInventors: Jun Sig Lee, Hyon-Soo Han, Ul-Jae Park, Kyung-Duk Jang, Hyeon-Young Shin, Soon-Bog Hong, Kwang-Jae Son
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Publication number: 20130134098Abstract: Methods for treating water to remove radium include contacting the water with a magnetic adsorbent comprising manganese oxide(s), and applying a magnetic field to separate the magnetic adsorbent from the water, whereby radium is removed from the water. The methods may additionally include regenerating the magnetic adsorbent, and contacting the water with regenerated magnetic adsorbent. Alternately, calcium and/or strontium may be precipitated as carbonate salts from lime-treated water containing radium and barium without precipitating a significant fraction of the barium or radium; and removing radium from calcium- and strontium-free water by precipitating the barium and radium as carbonate salts. The barium- and radium carbonate precipitate may be redissolved in hydrochloric acid and disposed of by deep-well injection.Type: ApplicationFiled: November 30, 2011Publication date: May 30, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: William Leonard Kostedt, IV, James Manio Silva, Hope Matis, Vicki Herzl Watkins, Harish Radhakrishna Acharya
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Publication number: 20130048568Abstract: A sorbent for sorbing radioactive ions is described. The sorbent comprises a porous crystalline powder of a metal oxide or mixed metal oxide. A process for making the sorbent comprises the steps of reacting a metal halide or a mixture of metal halides and an alcohol to form a gel; heating the gel to form a particulate material; exposing the particulate material to an oxidant to form a powder; and heating the powder to a temperature sufficient to at least partially melt or sinter particles of the powder so as to form the sorbent.Type: ApplicationFiled: March 3, 2011Publication date: February 28, 2013Applicant: Australian Nuclear Science and Technology OrganisationInventor: Van So Le
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Patent number: 8372289Abstract: A method for conditioning a contaminated ion exchange resin includes mixing the contaminated ion exchange resin with water and at least partly breaking up the contaminated ion exchange resin into water-soluble components or fragments through the use of an oxidizing agent added to the water. A resulting aqueous solution is consolidated with a binder, optionally after concentration by evaporation of water.Type: GrantFiled: June 16, 2010Date of Patent: February 12, 2013Assignee: Areva NP GmbHInventor: Rainer Gassen
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Patent number: 8366934Abstract: A method extracts out of an aqueous solution, concentrate and/or reformulate [18F] fluorides without any evaporation step. The eluting solution is a low water content, preferably <3% water, organic solution containing at least: a first compound (A) which is a tertiary alcohol-function bearing molecule, a second compound (B) which is a phase transfer agent suitable for radiolabeling and which is necessary to the anion exchange process.Type: GrantFiled: February 19, 2008Date of Patent: February 5, 2013Assignees: Trasis S.A., Universite de liegeInventors: Joel Aerts, Christian LeMaire, Steve Lignon, André Luxen, Jean-Luc Morelle, Gauthier Philippart, Samuel Voccia
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Publication number: 20130022686Abstract: By sequentially aligning various filtration media and delivery systems, enhanced synergistic reduction of water contaminants is obtained compared to the prior art or separate use of the individual media/filters. Specific filtration media are formulated with proper proportioning and sequencing to enhance the ability to reduce metals that cause staining, odors and bad taste such as iron, copper and manganese. Also disclosed is the reduction of potentially hazardous metal radionuclides metals such as uranium, iodine, cesium, plutonium and radium. Also disclosed is improved removal of heavy metals such as arsenic, lead, chromium, and mercury as well as organic compounds such as halogenated carcinogenic compounds. The present devices and methods remove specific bacteria and their toxins from water to reduce the risk of dermatitis. Thus, the present invention enhances our ability to achieving cleaner and safer water for drinking, swimming, washing, bathing and cooking.Type: ApplicationFiled: July 22, 2011Publication date: January 24, 2013Applicant: HYDROPURE TECHNOLOGIES, INC.Inventors: Jerry E. Rademan, Robert H. Black
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Patent number: 8343446Abstract: The oxine ligands 5-chloro-8-hydroxyquiniline and 5-sulfoxyl-8-hydroxyquinoline are covalently bound, using, for example, the Mannich reaction, to a silica gel polyamine composite made from a silanized amorphous silica xerogel and polyallylamine. The resulting modified composites, termed CB-1 (X?Cl) and SB-1 (X?SO3H), respectively, show a clear selectivity for trivalent over divalent ions and selectivity for gallium over aluminum. The compounds of the invention can be applied for the sequestration of metals, such as heavy metals, from contaminated mine tailing leachates.Type: GrantFiled: October 13, 2011Date of Patent: January 1, 2013Assignee: The University of MontanaInventors: Edward Rosenberg, Paul Miranda, Yuen Onn Wong
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Patent number: 8342337Abstract: A water sampling device and method for use with a radiation probe. The device includes a base, filtrate reservoir, filter media support disc, and sample reservoir. The sample reservoir may be interchanged with a radiation probe adaptor. The device and method provide a simple and convenient means to separate particulate solids from a water sample prior to measuring radioactivity without the need for a heat source or electrical power to evaporate the water. The device and method can be used with a variety of commercially available radiation probes and is suitable for field applications.Type: GrantFiled: March 25, 2010Date of Patent: January 1, 2013Assignee: The United States of America as Represented by the Secretary of the ArmyInventors: James A. Genovese, Patrick M. Nolan
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Publication number: 20120228229Abstract: A process for treating a natural or wastewater containing dissolved Mg or dissolved Al comprising the steps of adding at least one Mg-containing compound or at least one Al-containing compound to the natural or wastewater to thereby form a layered double hydroxide (LDH) containing Mg and Al as predominant metal species in a lattice of the LDH. The LDH may comprise hydrotalcite. The AL-containing compound may be aluminate or aluminium hydroxide derived from the Bayer process or from an alumina refinery.Type: ApplicationFiled: March 19, 2010Publication date: September 13, 2012Inventor: Grant Brian Douglas
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Patent number: 8252185Abstract: A water treatment apparatus includes a housing comprising multiple housing portions and a plurality of treatment sections disposed within the housing, each treatment section comprising at least one distinct particulate layer. The apparatus is designed so that no water pressure need be applied to force the water through the apparatus, as gravity pulls the water down through the filtering layers. Water may also be force fed through the treatment apparatus; when the water is force fed, the housing portions need not be vertically stacked, but may be configured in any suitable arrangement. The treatment sections are distributed through the various housing portions in logical groups to perform various kinds of filtering. The housing portions are detachable and sealably stackable in multiple configurations, thus passing water through more or fewer treatment layers, depending on the quality of the incoming water.Type: GrantFiled: August 18, 2008Date of Patent: August 28, 2012Assignee: Zero Technologies, Inc.Inventors: Rajan G. Rajan, Mathu G. Rajan
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Publication number: 20120125856Abstract: A nanocomposite solid material includes nanoparticles of a metal coordination polymer with CN ligands comprising Mn+ cations, in which M is a transition metal and n is 2 or 3; and anions [M?(CN)m]x? in which M? is a transition metal, x is 3 or 4, and m is 6 or 8. The Mnn+ cations of the coordination polymer are bound through an organometallic bond to an organic group of an organic graft chemically attached inside the pores of a support made of porous glass. The material can be used in a method for fixing (binding) a mineral pollutant, such as radioactive cesium, contained in a solution by bringing the solution in contact with the nanocomposite solid material.Type: ApplicationFiled: May 20, 2010Publication date: May 24, 2012Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, UNIVERSITE DE MONTLIER IIInventors: Agnes Grandjean, Yves Barre, Yannick Guari, Joulia Larionova, Christian Guerin
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Publication number: 20120097614Abstract: A method for treating low barium frac water includes contacting a frac water stream with a radium selective complexing resin to produce a low radium stream, passing the low radium stream through a thermal brine concentrator to produce a concentrated brine; and passing the concentrated brine through a thermal crystallizer to yield road salt.Type: ApplicationFiled: July 25, 2011Publication date: April 26, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: James Manio Silva, Hope Matis, William Leonard Kostedt, IV
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Patent number: 8142665Abstract: In a method of fast reduction of all iodine species, exclusively, including all volatile iodine species, into non-volatile iodide ions in an aqueous solution, a reducing agent and a co-agent with phase transfer catalyst—ion-exchanger property are simultaneously added to the aqueous solution and concurrently, thermal and radiolytic oxidation of iodide ions, otherwise yielding to revolatilzation, is suppressed producing an efficient retention of all iodide species in the aqueous solution.Type: GrantFiled: August 17, 2006Date of Patent: March 27, 2012Assignee: Paul Scherrer InstitutInventors: Horst Bruchertseifer, Salih Guentay