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8153087 |
Method for the purification of radium from different sources
The present application is directed to a method for the purification of Radium, in particular 226Ra, for target preparation for an essentially pure 225Ac production from available radioactive...
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8137644 |
Method for the elimination of uranium (VI) species in the form of uranyl complexes from waters
The invention relates to a method for the removal of uranium(VI) species from waters by means of weakly basic, polyacrylic-based anion exchangers, said uranium(VI) species being present in the form...
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8097164 |
Process for preparing magnetic particles for selectively removing contaminants from solution
A process for selectively removing contaminant ions from a solution includes: a) contacting the solution with magnetic particles coupled to selectively chelating ion exchange functionality...
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8057577 |
Desulfurizer for fuel gas for fuel cell and desulfurization method using the same
A desulfurizer for fuel gas for a fuel cell includes: a first adsorption tank including an adsorber having selective adsorption capacity for a thiophene-based compound and a second adsorption tank...
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7988937 |
Decontamination of radioactive metals
The present invention relates to a method for the volumetric decontamination of radioactive metals. The method includes the step of precipitating out radioactive gamma and beta emitting nucleotides...
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7959812 |
Multi-column sequenced separation process for separating an ionic metal derivative
The subject of the present disclosure is a multi-column sequenced separation process and a drive for implementing this process. The disclosure applies particularly to the separation of metal...
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7927566 |
Extraction of radionuclides by crown ether-containing extractants
The present invention relates to a treatment of high-level waste of radiochemical production containing radionuclides and macro-admixtures including sodium. The method of extraction of...
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7807058 |
Method and composition for sorbing toxic substances
Toxic substances such as heavy metals are extracted from a medium using a sorbent composition. The sorbent composition is derived by sulfidation of red mud, which contains hydrated ferric oxides...
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7655199 |
Process for uranium recovery using anion exchange resin
The present invention relates to a process for the recovery of uranium in high silica environments comprising the use of a strong base macroreticular ion exchange resin.
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7394074 |
Protective housing for radionuclide generator and combination thereof
A protective cover and radionuclide generator assembly. The cover protecting inlet and outlet connections disposed on the radionuclide generator. The radionuclide generator having a distal end...
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7390934 |
Apparatus and method for aiding in the removal of enriched uranium from soils
A method and apparatus for removing uranium (IV) and uranium (VI) from sands and soils. The method and device assays a volume of soil and determines a presence and position of uranium enrichment. A...
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7214318 |
Method for separation of actinide elements
A method for separation of actinide elements comprising feeding a solution containing actinide elements such as americium, curium, californium and the like, into a resin column in which a weakly...
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7211231 |
Ion exchange materials for use in a 213Bi generator
A bismuth-213 generator comprising an insoluble composition having the general formula Zr(Phosponate)x(HPO4)2−x.nH2O, wherein x is between 0 and 2; and n is the number of waters of hydration; and w...
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7157061 |
Process for radioisotope recovery and system for implementing same
A method of recovering daughter isotopes from a radioisotope mixture. The method comprises providing a radioisotope mixture solution comprising at least one parent isotope. The at least one parent...
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7157022 |
Multivalent metal ion extraction using diglycolamide-coated particles
A separation medium, a method for using that separation medium and an apparatus for selectively extracting multivalent cations such as pseudo-lanthanide, prelanthanide, lanthanide, preactinide or...
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7087206 |
Multicolumn selectivity inversion generator for production of high purity actinium for use in therapeutic nuclear medicine
A multicolumn selectivity inversion generator separation method has been developed in which actinium ions, a desired daughter radionuclide, are selectively extracted from a solution of the thorium...
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6998052 |
Multicolumn selectivity inversion generator for production of ultrapure radionuclides
A multicolumn selectivity inversion generator separation method has been developed in which a desired daughter radionuclide is selectively extracted from a solution of the parent and daughter...
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6972095 |
Magnetic molecules: a process utilizing functionalized magnetic ferritins for the selective removal of contaminants from solution by magnetic filtration
A decontamination system uses magnetic molecules having ferritin cores to selectively remove target contaminant ions from a solution. The magnetic molecules are based upon a ferritin protein...
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6852233 |
Metal-collecting apparatus and method for elution and recovery of metal from metal-collecting material
An object of the present invention is to provide a structure of a metal collecting material for use in seawater or river water or industrial wastewater to give the most excellent adsorption...
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6695986 |
Electrocatalytic enhancement with catalyst-modified carbon-silica composite aerogels
An electrically conductive composite is provided having a mesoporous architecture that improves the accessibility of a nanoscopic catalyst, supported on conductive carbon, to a mass-transported...
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6667016 |
Inorganic-organic hybrid gels for extracting species such as lanthanides and actinides, and their preparation
Inorganic-organic hybrid gels can be employed to extract chemical species such as lanthanides and actinides and their preparation. The gels include a network of inorganic components with the...
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6603127 |
Bismuth-213 generator and uses thereof
The present invention provides a generator capable of producing therapeutic Bismuth-213 doses. Also disclosed are methods of preparing Bismuth-213-labeled compounds using such generator and...
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6471922 |
Actinide removal from spent salts
A method for removing actinide contaminants (uranium and thorium) from the spent salt of a molten salt oxidation (MSO) reactor is described. Spent salt is removed from the reactor and analyzed to...
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6436358 |
Metals removal from spent salts
A method and apparatus for removing metal contaminants from the spent salt of a molten salt oxidation (MSO) reactor is described. Spent salt is removed from the reactor and analyzed to determine...
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6402953 |
Adsorption means for radionuclides
The invention relates to adsorption material for radionuclides based on a fine fibrous material containing chitin. The material is obtained from fungi and insoluble ferrocyanides of the transition...
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6153154 |
Method for sequential injection of liquid samples for radioisotope separations
The present invention is a method of separating a short-lived daughter isotope from a longer lived parent isotope, with recovery of the parent isotope for further use. Using a system with a...
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5885465 |
Method of separating short half-life radionuclides from a mixture of radionuclides
The present invention is a method of removing an impurity of plutonium, lead or a combination thereof from a mixture of radionuclides that contains the impurity and at least one parent...
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5863439 |
Process for separation and preconcentration of radium from water
A process for preconcentrating and separating radium from a contaminated solution containing at least water and radium includes the steps of adding a quantity of a water-soluble macrocyclic...
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5854968 |
Process and apparatus for the production of BI-213 cations
A process for producing substantially impurity-free Bi-213 cations is disclosed. An aqueous acid feed solution containing Ac-225 cations is contacted with an ion exchange medium to bind the Ac-225...
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5852786 |
Process for decontaminating radioactive materials
A process for the decontamination of radioactive materials which process comprises the steps of: i) contacting the material to be decontaminated with a dilute carbonate containing solution in the...
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5835865 |
Method and device for the disposal of a cation exchanger
A cation exchanger is loaded only with radioactive cations by repeatedly converting the non-bivalent, inactive cations into anionic complexes and flushing the complexes out of the cation exchanger....
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5809394 |
Methods of separating short half-life radionuclides from a mixture of radionuclides
The present invention is a method of obtaining a radionuclide product selected from the group consisting of 223 Ra and 225 Ac, from a radionuclide "cow" of 227 Ac or 229 Th respectively. The method...
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5476641 |
Method of separating and recovering plutonium and neptunium from plutonium- and neptunium-containing nitric acid solution
A method of separating and recovering Pu and Np from a Pu- and Np-containing nitric acid solution. The method comprises the steps of subjecting a nitric acid solution containing Pu and Np to...
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5344624 |
Method for recovering with the aid of a crown compound plutonium (IV) present in solutions, such as aqueous effluents, concentrated solutions of fission products and concentrated solutions of plutonium
The invention concerns the recovery of Pu (IV) by using crown compounds.According to the invention, the aqueous solution containing the plutonium (IV) is placed in contact with at least one crown...
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5340560 |
Method for making fumed silica having a reduced aggregate size and product
A method is provided for making fumed silica aggregate having an average convex perimeter in the range of about 0.12 micron to about 0.6 micron based on the combustion of a mixture of a silicon...
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5324491 |
Enzymatic reduction and precipitation of uranium
A method for removing uranium from uranium contaminated water involves adding uranium reducing microorganisms and an electron donor to uranium contaminated water to reduce U(VI) in the uranium...
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5322644 |
Process for decontamination of radioactive materials
A process for decontaminating radioactive material comprises the step of contacting the material with a dissolving composition to dissolve the contaminants in the material, said composition...
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5306399 |
Electrochemical exchange anions in decontamination solutions
Spent nuclear reactor coolant system decontamination solutions are first processed to remove the radioactive burden and to separate metallic impurities using cation exchange resins. The...
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5265135 |
Instrumentation and control scheme for implementing a boron isotopic enrichment process
An apparatus for providing an inventory of an isotopically enriched acidic solution of an element that is capable of forming a water soluble weakly acidic solution at temperatures amenable to ion...
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5205999 |
Actinide dissolution
A process for the treatment of a material which is or is suspected to contain or carry one or more actinides or compounds thereof to dissolve such actinides or compounds comprises contacting the...
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5176885 |
Isotope separation of weak acid forming elements by utilization of thermal regeneration of ion exchange resin
A process and an apparatus are provided which separate the lower molecular weight isotope fraction from the higher molecular weight isotope fraction of an element which forms a water soluble acid...
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5174873 |
Method of isotope enrichment
A method of isotope enrichment including providing a reactant. The reactant is a mixture of at least two isotopic compounds. One of the isotopic compounds has a greater percentage of a selected...
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5154897 |
Method and apparatus for the generation of radioisotopes
A method and a generator for separating daughter radioisotope from a stock solution containing the daughter radioisotope and its parent are provided. The generator is provided with a glass...
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5122268 |
Apparatus for waste disposal of radioactive hazardous waste
In accordance with the present invention, there is described a method and apparatus for concentrating dissolved and solid radioactive materials carried in a waste water solution containing a...
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5104549 |
Waste treatment process for alkaline waste liquid
There is disclosed a waste treatment process for alkaline waste liquid in which substances to be removed exist in ionic and colloidal states. In the process, powdered tannin is added to the waste...
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5084389 |
Bioadsorption composition and process for production thereof
A novel bioadsorption composition suitable for removing heavy metal from waster water effluent, the composition comprising a biomass encapsulated sol-gel matrix. A process for preparing the biomass...
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5082602 |
Process and apparatus for regenerating spent reprocessing extraction solvent
Cations and anions contained as impurities in a spent organic solvent can be removed by an alkaline aqueous solution passing through inside of hydrophobic porous membrane such as hollow fibers for...
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5049284 |
Method of removing radioactive europium from solutions of radioactive gadolinium
The improved method and apparatus are capable of efficient removal of radioactive europium from solutions of radioactive gadolinium in a simple way. A mixture of a zinc and a graphite powder is...
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5004710 |
Method for the chemical preparation of zirconia alloy powders and article
A ceramic article having good fractured toughness comprising substantially spherical ceramic particles, which may be a ceramic oxide such as zirconia or zirconia combined with yttrium oxide. The...
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4971729 |
Inorganic ion exchange material
An ion exchange material comprises an oxide of a first element selected from elements of Groups IVa, IVb, Va, Vb, VIa, VIb, VIIa, or lanthanide or actinide series of the Periodic Table, in...
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