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WO/2017/174012A1 |
Provided is a salt chlorinated-slag resource processing method; in said method, the strong oxidizing or alkaline waste brine or chlor-alkali chemical tail-gas absorption waste liquid produced by purifying molten-salt chlorinated tail gas...
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WO/2017/157355A1 |
The present invention provides a method for isolation of Ac from a mixture comprising radium, actinium and thorium comprising the following steps: a) a mixture of Ra/Ac/Th is loaded onto a separation column containing an anion exchanger ...
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WO/2017/139827A1 |
The disclosure relates to a beneficiation process for uranium ore comprising a hydrocyclone step that produces an underflow fraction containing uranium values for further processing and an overflow fraction containing fine particulate wa...
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WO/2017/139829A1 |
The invention relates to a beneficiation process for uranium ores comprising clay and carbonate minerals, the process comprising: performing a hydrocyclone step to obtain a hydrocyclone underflow fraction substantially comprising the ura...
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WO/2017/085312A1 |
The invention relates to an organic material which includes a solid polymer substrate onto which molecules having the following general formula (I) are grafted: Formula (I) in which: m = 0, 1 or 2; R1 and R2 = a saturated or unsaturated,...
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WO/2017/085311A1 |
The invention relates to a method for extracting uranium (VI) from an aqueous solution including phosphoric acid, which includes placing the aqueous solution in contact with an organic material, followed by separating the aqueous solutio...
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WO/2017/054944A1 |
The above mentioned invention describes a process for producing uranium and/or at least one rare earth element selected from the group consisting of cerium, dysprosium, erbium, europium, gadolinium, holmium, lanthanum, lutetium, neodymiu...
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WO/2017/048329A1 |
Disclosed herein is a method and apparatus that uses a brine from a well that is used to both generate electricity and recover valuable minerals present in the brine. The method and apparatus uses a hydrophobic membrane to separate water...
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WO/2017/030937A1 |
Disclosed herein are systems and methods in which ion-selective separation and multi-stage osmotic separation is used to produce multivalent-ion-rich process streams. According to certain embodiments, multiple separations may be used to ...
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WO/2017/017193A1 |
The invention relates to novel dissymmetric N,N-dialkylamides having formula (I), wherein R represents a straight or branched alkyl group at C8 to C15. The invention also relates to a method for synthesising said N,N-dialkylamides, and t...
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WO/2017/001494A1 |
The invention relates to a method for separating iron from an initial liquid organic phase containing uranium and iron, in which the initial liquid organic phase is placed in contact with an aqueous solution referred to as aqueous iron-r...
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WO/2016/209575A1 |
A method of making a nuclear fuel structure may include reducing a metal oxide in a cathode assembly so as to deposit a metal of the metal oxide on the cathode plate of the cathode assembly, and processing the cathode plate with the meta...
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WO/2016/201456A1 |
The use: Extraction of valuable metals - uranium, vanadium, rhenium, rare earth elements (REE) and scandium during comprehensive black-shale ore processing. The objective: To increase the recovery of uranium, vanadium, uranium, molybdenu...
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WO/2016/182472A1 |
The proposed invention relates to processes for extracting and concentrating radionuclides and can be used in radiochemical technologies when treating liquid radioactive waste. The method for isolating americium from liquid radioactiv...
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WO/2016/164986A1 |
A process for selectively separating a metallic constituent from other metals and other materials accompanying the metallic constituent in a mixture is described. The process comprises the step of providing the mixture in an aqueous solu...
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WO/2016/156593A1 |
The invention relates to novel compounds which are represented by the following general formula (I): (I) in which : R1 and R2, identical or different, each represents a C6 to C12 saturated or unsaturated, linear or branched hydrocarbon g...
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WO/2016/156591A1 |
The invention relates to compounds which correspond to the general formula (I) below: (I) in which: R1 and R2 represent, independently of one another, a C4 to C12 acyclic hydrocarbon-based group; R3 represents H; a C1 to C12 acyclic hydr...
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WO/2016/094956A1 |
1. A method for recovering one or more of copper, uranium and a precious metal from an ore material, including: (a) forming a heap of the ore material; (b) during active heap irrigation, contacting the heap of the ore material with an ir...
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WO/2016/090808A1 |
A use of an amino group-containing neutral phosphine extraction agent having formula I for the extraction and separation of thorium, and a thorium extraction and separation method for the use. R1 and R2 are each independently selected fr...
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WO/2016/081976A1 |
A split solvent extraction process for treating pregnant leach solution (PLS) from a heap leach process is described. The solvent extraction process comprises the steps of partitioning the heap leach process to produce two or more pregna...
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WO/2016/023812A1 |
Process for oxidising species in solution using hydrogen peroxide, said process comprising the steps of: - agitating a solution or suspension of particles in a tank with an agitating device; - adding hydrogen peroxide to said solution or...
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WO/2015/135017A1 |
A method for the recovery of uranium from a Pregnant Strip Solution (PSS) (201) emanating from an upstream uranium recovery process is described. The method comprises the steps of: extracting the uranium values quantitatively from the PS...
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WO/2015/067689A1 |
The invention relates to the use of an organic-inorganic hybrid material, including an inorganic solid support on which are grafted the organic molecules having general formula (I), where: x, y and z = 0 or 1, with at least one of x, y a...
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WO/2015/061836A1 |
A process to recover a target metal from hydrometallurgical solutions comprising the method steps of: i. Adding a calcium based neutralising agent such as lime or limestone to a solution containing aluminium sulphate at moderate temperat...
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WO/2015/051127A1 |
A method of recovering molybdenum includes introducing resin comprising molybdenum anions into an elution vessel (2012) and eluting (separating) the molybdenum anions from the resin to form a molybdenum rich eluent. Small amounts of uran...
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WO/2015/022074A1 |
A method for the quantification of 227Ac in a 223Ra composition comprising passing the composition through a first solid phase extraction column A, wherein said column comprises a thorium specific resin, passing the eluate of column A th...
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WO/2014/174483A2 |
The invention relates to novel algae of the genus Coccomyxa, especially the algae of a novel species called C-IR3-4C, and to the use thereof for capturing metals from aqueous environments, especially radioactive environments.
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WO/2014/169325A1 |
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/2014/139869A1 |
The invention relates to the use of compounds of general formula (I) hereinafter in which: R1 and R2 represent a linear or branched, saturated or unsaturated C6 to C12 hydrocarbon-based group; R3 represents H, a linear or branched, satur...
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WO/2014/130209A1 |
A continuous ion exchange system and method for recovering uranium from a pregnant liquor solution wherein the method includes the steps of: (a) treating the pregnant liquor solution (16) with a membrane (28) to produce: i) a leach perme...
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WO/2014/127860A1 |
The invention relates to an organic-inorganic hybrid material which comprises an inorganic solid substrate onto which are grafted organic molecules of general formula (I) hereinafter in which: x, y and z = 0 or 1, with at least one of x,...
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WO/2014/113742A2 |
Methods for the extraction of metals such as rare earth metals and thorium from metal compounds and solutions. The methods may include the selective precipitation of rare earth elements from pregnant liquor solutions as rare earth oxalat...
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WO/2014/092281A1 |
The present invention relates to an electrochemical device, and more particularly, to an electrochemical device for recovering uranium from spent nuclear fuel, including: an electrolytic bath containing a molten salt electrolyte solution...
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WO/2014/082113A1 |
A method (10) for the hydrometallurgical processing of rare earth and uranium containing ores and concentrates, the method comprising the steps of: (i) Passing a rare earth ore to a concentration step in which is produced a rare earth ph...
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WO/2014/082461A1 |
A monazite ballast separation and recovery method comprises the following steps: acid leaching, filter pressing, washing, extracting valuable components, and residue processing. In the acid leaching step, the ballast is leached at low te...
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WO/2014/059461A2 |
The disclosure relates to a beneficiation process for low grade uranium ore, wherein the process comprises a primary beneficiation stage comprising: wet scrubbing the low grade uranium ore to separate the low grade ore into a fine fracti...
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WO/2014/040136A1 |
A process for extracting uranium from an acidic uranium, chloride, iron and sulphate containing solution, including the steps: a. contacting the solution with an organic phase containing a trialkylphosphine oxide to form a uranium loaded...
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WO/2014/029017A1 |
Nanofiltration can be used to improve a hydrometallurgical process in which valuable metal is extracted from ore or tailings by leaching with a suitable lixiviant. The process requires at least two nanofiltration subsystems in which raff...
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WO/2014/018422A1 |
In alternative embodiments, the invention provides processes and methods for the recovery, removal or extracting of, and subsequent purification of uranium from a wet- process phosphoric acid using a continuous ion exchange processing ap...
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WO/2014/001274A1 |
The invention relates to a process for separating at least one first chemical element E1 from at least one second chemical element E2 coexisting in a mixture in the form of oxides, comprising the following steps: a) a step of dissolving ...
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WO/2013/173855A1 |
A process of leaching a metal containing ore comprising the steps of forming an acidic solution containing ferric iron; and contacting the acidic solution containing ferric iron with the metal containing ore to extract elements by oxidat...
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WO/2013/171804A1 |
[Problem] To provide a uranium solvent extraction method capable of collecting uranium from a low concentration uranium exudate using a countercurrent extraction tower. [Solution] The uranium solvent extraction method comprises a process...
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WO/2013/167516A1 |
The invention relates to new compounds which are represented by the following general formula (I): Formula (I), in which: m = 0, 1 or 2; R1 and R2 = a linear or branched C6 to C12 hydrocarbon group; R3 = H, a linear or branched C1 to C12...
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WO/2013/066957A1 |
In a preferred embodiment, a process for extracting uranium from wet-process phosphoric acid (WPA), comprises separating uranium from WPA to produce a loaded uranium solution stream and a uranium depleted WPA stream. The loaded uranium s...
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WO/2013/040694A1 |
A process for upgrading tantalum and niobium ores and concentrates is described herein. The process comprising: a) submitting the ore or concentrate to a caustic fusion or an alkali fusion using a melt comprising at least one salt of an ...
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WO/2013/011100A1 |
The invention relates to a process and a device for bringing two immiscible liquids into contact, without mixing and at high temperature, with heating and brazing by induction. In particular, the invention relates to a process and a devi...
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WO/2012/150984A2 |
Provided are methods using a ketoxime in metal extraction. One aspect of the invention relates to a method for the recovery of metal from a metal-containing aqueous solution at an elevated temperature using a ketoxime. Another aspect rel...
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WO/2012/130902A1 |
The invention relates to novel compounds which are useful as actinide ligands and which have the following general formula (I). The invention further relates to a method for synthesizing said compounds as well as to the uses thereof.
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WO/2012/109705A1 |
The invention discloses a method for recovering uranium from an acidic leach solution or leach pulp in salt water using an amino-phosphorus resin, wherein the liquid phase of the leach solution or leach pulp contains greater than 3 g/L c...
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WO/2012/093170A1 |
The main subject-matter of the present invention is a process for the dissolution of at least one element chosen from niobium and tantalum and at least one other element chosen from uranium and the rare earth elements, advantageously for...
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