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WO/2024/066260A1 |
Disclosed in the present invention are a selenium-tungsten polyoxometalate and a preparation method therefor, and the use thereof in the ultra-filtration separation of actinide ions. The selenium-tungsten polyoxometalate {Se6W45} is [(CH...
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WO/2024/025404A1 |
The invention consists in recycling and then purifying, by means of a closed-loop cascade of nanofiltrations, sulphuric acid for regenerating ion-exchange resin, and thus concentrating the uranium initially contained therein with a view ...
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WO/2023/247788A1 |
A method for purification of a target material for re-use in the production of radio- isotopes is disclosed. The method comprises obtaining a solution of irradiated target material, comprising Ra-226 and optionally Ra-225 and Ac-225, and...
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WO/2023/242129A1 |
The present invention relates to a process for selectively capturing chemical elements from a polymetallic liquid sample.
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WO/2023/235482A1 |
A Molybdenum/Technetium 99-m generator containing a metal-molybdate containing powder and an alumina sorbent. A preferred alumina sorbent is a gamma¬ phase alumina (γ-A12O3), a chi-phase alumina (χ-A12O3), or a combination thereof.
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WO/2023/224933A1 |
The present disclosure relates to systems and methods for recovering radium-226. In one embodiment, uranium tailings are processed to achieve an aqueous solution comprising radium-226. A macrocyclic material may be used to sorb the radiu...
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WO/2023/215541A1 |
A waste extraction system that includes a column set positioned between and fluidly coupled to an upstream segment of a main waste pathway and a column effluent tank, the column set having a uranium adsorption column fluidly coupled to a...
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WO/2023/155278A1 |
A method for treating retained plutonium in a waste organic phase in a PUREX process. The waste organic phase in the PUREX process contains an organic solvent and plutonium, and the method comprises: enabling the waste organic phase in t...
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WO/2023/131068A1 |
The present invention relates to trivalent actinides and lanthanides, and a trivalent actinide integrated extraction and separation method. The method comprises: adjusting a pH value of a solution containing trivalent lanthanide and acti...
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WO/2023/069325A1 |
A method for beneficiation of mineralogical materials that comprises using a one or more of a suite of processes including fluidized bed separation, plasma-based stimulation or enhancement of chemical reactions using a Reactive X-Ray Che...
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WO/2022/255905A1 |
The present method includes preparing a working solution of elements to be separated in nitric or hydrochloric acid with a concentration in the range of 0.01-0.15 mol/L, sorbing lutetium-177 and ytterbium from said working solution in a ...
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WO/2022/241070A1 |
The actinium generator described herein is based on peroxide precipitation of thorium from its daughter products radium and actinium. In this system, the "actinium generator" is a quantity of solid thorium peroxide stored under a cover s...
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WO/2022/226114A2 |
In one aspect, the technology relates to a method of producing Ac, the method including preparing a phosphate-modified titania material to produce an ion-exchange material, contacting a solution including 229Th with the ion-exchange mate...
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WO/2022/149535A1 |
An embodiment of the present invention relates to a 226Ra recovery method, the 226Ra recovery method including a step (A1) in which a 226Ra-containing substance that is in a solid state and a carrier that has the function of adsorping 22...
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WO/2022/127132A1 |
Disclosed in the present invention are a preparation process and device for high-purity low-radiation spherical silicon micropowder for use in a 5G base station: the uranium in silicon micropowder is effectively separated by means of aci...
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WO/2022/117948A1 |
The invention relates to a method for recovering rare earth metals and uranium(VI) present in an aqueous phosphoric acid solution by liquid-liquid extraction that enables not only highly efficient co-extraction of the rare earth metals a...
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WO/2022/117942A1 |
The invention relates to the use of a mixture of quaternary ammonium salts as an extractant for extracting uranium(VI) from an aqueous sulfuric acid solution. It also relates to mixtures of quaternary ammonium salts and to a method enabl...
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WO/2022/119472A1 |
A method of crystallization separation and purification of uranyl nitrate hexahydrate comprises crystallizing uranyl nitrate hexahydrate from a concentrated nitric acid solution of uranyl nitrate, countercurrent washing of the crystals, ...
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WO/2022/090242A1 |
The subject matter of the present invention consists of formo-phenolic resins, a process for the preparation thereof, and the use of same in the extraction of uranium from an aqueous sample. The present invention also relates to novel fo...
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WO/2022/066169A1 |
The present disclosure describes a method of recovering uranium including a continuous ion exchange (CIX) process including a single cycle or a dual cycle CIX process and at least a gradient elution or resin crowding process. The present...
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WO/2022/014555A1 |
This method for producing a 225Ac solution comprises steps (I)-(III). In step (I), a solution (1) containing 226Ra and 225Ac is passed through a solid-phase extractant (a) containing a compound represented by formula (A), and 225Ac is ...
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WO/2021/249074A1 |
Disclosed in the present invention is an intelligent flow control device for rare earth extraction, relating to the technical field of rare earth extraction. The intelligent flow control device comprises: a housing, a material passing ch...
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WO/2021/226661A1 |
A method for separating radionuclides from ores, ore concentrates, and tailings or mixtures of two or more thereof comprising the steps of (a) providing an ore, ore concentrate, or tailings, or a mixture of two or more thereof in which r...
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WO/2021/176037A1 |
The present disclosure relates to a method for separating thorium and cerium from a solid concentrate comprising compounds of thorium, cerium and one or more further rare earth metals, obtainable by increasing to pH 1.8 the pH of an aque...
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WO/2021/121213A1 |
Disclosed is a method for extracting uranium by means of a wind power generation-seawater uranium extraction coupling device, the method comprising: adding In2O3-x to absolute ethanol, and stirring and sonicating same, in order to obtain...
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WO/2021/062174A1 |
Example implementations include a method of manufacturing a biochemical sensor by forming a fluid conduit in a microfluidic layer, forming an electrode on an electrode layer, forming a biochemical sensor on the electrode layer, bonding t...
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WO/2020/256066A1 |
One embodiment of the present invention relates to: a method for producing a 226Ra target; a method for producing 225Ac; or an electrodeposition liquid for the production of a 226Ra target. This method for producing a 226Ra target compri...
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WO/2020/148316A1 |
In a first aspect, the present invention relates to a method for purifying Ac from a mixture comprising Ac and at least one element selected from Ra, Pb, Po, Bi and La, the method comprising: (a) performing a first separation using a fir...
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WO/2020/124238A1 |
The present disclosure relates to a process for purifying a zircon sand. The process notably comprises an alkali fusion reaction conducted in conditions such that the fusion reaction is incomplete with respect to zircon as well as variou...
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WO/2020/088707A1 |
The invention relates to a nuclear reactor operating according to the dual fluid principle and having a special liquid metal fissionable material mixture as liquid fuel in the liquid fuel line, said mixture having a high proportion of ac...
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WO/2020/034023A1 |
A system and method for dry ablation beneficiation of ore. The system comprises a nozzle to emit an air stream, and a feeder to provide ore particles for entraining in the air stream and colliding. The ore comprises gangue grains bound t...
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WO/2019/221323A1 |
The present invention relates to a method for forming an extract from rare earth mineral leach residue and stripping thorium, the method for selectively stripping thorium using a salt comprising the steps of: (a) forming a leachate by ad...
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WO/2019/221329A1 |
The present invention relates to a method for extracting thorium from a leaching residue of a rare earth ore, and provides a method for selectively extracting thorium by using a polymer alcohol, comprising the steps of: (a) adding an aci...
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WO/2019/068962A1 |
The present invention relates to novel polymers that are grafted onto a substrate. These polymers contain monomer units derived from 4-vinylpyridine and monomer units derived from a co-monomer. The polymers may be complexed with a metal,...
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WO/2019/068961A1 |
The present invention relates to novel polymers. These polymers contain monomer units derived from 4-vinylpyridine and monomer units derived from a co-monomer. The polymers may be complexed with a metal, and linear or crosslinked. The pr...
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WO/2019/053148A1 |
The invention relates to a method for extracting at least one metal contained in a sample comprising a mixture of metal salts from at least two different metals, comprising the successive steps of: a) contacting the sample, in a grinding...
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WO/2019/036711A1 |
Methods for removing a target selenium entity from fluids by treating the fluid with a rare earth impregnated media containing an immobilized rare earth. The methods including obtaining a contaminated fluid comprising water and dissolved...
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WO/2019/030564A1 |
The invention pertains to a method for separating uranium and/or thorium from an aqueous suspension, said method comprising: a) Contacting said suspension with at least a polymer having formula (I), wherein n is an integer which is not 0...
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WO/2019/025714A1 |
The invention relates to bifunctional compounds which have a thiophosphine function and which are capable of highly effectively extracting uranium(VI) from an aqueous solution of phosphoric acid, and do so with a high selectivity with re...
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WO/2019/002788A1 |
The invention relates to the use of ureas as extractants for fully or partially separating uranium(VI) from plutonium(IV) in an aqueous solution obtained by dissolving a spent nuclear fuel in nitric acid, by means of liquid-liquid extrac...
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WO/2019/000014A1 |
The present specification relates to a method for removing actinium from process liquors comprising ions of interest (which may be, for example, rare earth ions) and actinium ions. In this method, a low solubility metal sulfate salt is c...
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WO/2018/227674A1 |
A method for removing a radioactive thorium element in a rare earth mineral, comprising the following steps: mixing the rare earth mineral and selenium dioxide in water; enabling the radioactive thorium element and the selenium dioxide t...
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WO/2018/222414A1 |
A process is provided for recovering uranium comprising (A) bringing a solution (A) into contact with a resin (A) to produce a mixture of solution (B) and resin (B), wherein the solution (A) is an aqueous solution comprising dissolved so...
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WO/2018/178416A1 |
The invention relates to a microorganism belonging to the micro-algae species Tetraselmis mediterranea TmmRU sp. (BEA/IDA/0062), and to the use of said strain to increase the isotope ratio 235U/238U of a solution in relation to a startin...
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WO/2018/157424A1 |
Provided is a method for recycling plutonium from a spent radioactive fuel. The method successively comprises the following steps: extraction: tetravalent plutonium is extracted from an aqueous solution of the spent radioactive fuel usin...
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WO/2018/138441A1 |
The invention relates to novel dissymmetric RN,N-dialkylamides of formula (I) in which: R1 represents a linear C1 to C4 alkyl, R2 represents a linear C1 to C10 alkyl, and R3 represents a linear or branched C6 to C15 alkyl, provided that ...
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WO/2018/109382A1 |
The invention relates to a mesoporous organic material which makes it possible to extract, using the liquid-solid extraction technique, the uranium(VI) contained in an aqueous medium including phosphoric acid, with high efficiency and hi...
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WO/2018/049487A1 |
A process for recovering copper, uranium and one or more precious metals from an ore material, including: a. forming a heap of the ore material; b. subjecting the heap of the ore material to an acidic heap leach using an iron containing ...
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WO/2018/029787A1 |
A method for separating zirconium, which is one of long-lived fission products (LLFPs), from a zirconium-containing radioactive solution (a high-level radioactive waste liquid), said method comprising adding molybdenum to the radioactive...
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WO/2017/188538A1 |
The present invention relates to a method for collecting uranium (U) by a chemical treatment process of a uranium hexafluoride (UF6) cylinder washing waste liquid, and to an apparatus therefor. According to the present invention, by prov...
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