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Matches 201 - 250 out of 1,219

Document Document Title
WO/1983/001793A1
Purification method of uraniferous concentrates containing impurities of which particularly at least one of zirconium and/or hafnium elements, comprising the treatment of said concentrates in an acidic and hot aqueous medium by means of ...  
WO/1983/000509A1
Process for the selective purification during a hot oxidizing treatment of a uranium-bearing and/or molybdenum-bearing mineral containing arsenical materials, comprising the etching of such mineral by means of an aqueous liquor of sodium...  
WO/1982/003620A1
Method for removing arsenic from aqueous solutions containing alkaline carbonate, sulphate, hydroxide or hydrogenocarbonate and arseniate, as well as essentially at least one of the metals pertaining to the group comprising vanadium, ura...  
WO/1982/002873A1
Process for the recovery of uranium from wet-process phosphoric acid utilizing an alkyl pyrophosphoric acid extractant. The extractant also contains a modifier for retaining the alkyl pyrophosphoric acid ester in solution in an essential...  
WO/1981/001577A1
Process for the treatment of a hydrometallurgic suspension resulting from the etching of an ore containing at least one metal element to be valued, and acid-proof mineral materials of which a fraction is comprised of clays, consisting in...  
WO/1981/000727A1
The processes and devices known heretofore for removing valuable materials dissolved, particularly uranium oxide, in sea water passing through absorbing layers have not yet met any success in the implementing thereof, because of the susp...  
WO/1980/002235A1
Method and apparatus for gathering valuable substances, such as uranium, gold, silver or the like from sea water. The features characterizing the invention are that the sea waves are caused, by using the energy thereof, to rush up a ramp...  
WO/1979/000920A1
A method and apparatus is provided for removing large volumes of contaminants or for recovering valuable minerals present in trace amounts or greater quantities by ion exchange treatment of phosphoric acid liquids or the like as they flo...  
WO/1979/000142A1
In the field of metallurgy, specifically processes for recovering uranium from wet process phosphoric acid solution derived from the acidulation of uraniferous phosphate ores, problems of imbalance of iron exchange agents, contamination ...  
JP2018165376A
[Subject] if the precious metals, such as metal of a lanthanoid series or an actinoid system, Fe, aluminum, gold, etc. are plant-ized -- extensive -- the time -- a hand -- it can do. [Means for Solution] Metallic elements are taken out o...  
JP2018530670A
[Subject] By 1 time of an extraction cycle, americium is separated from fluid acid solution of a radioactive material, and it dissociates also from all the rare earth elements. [Means for Solution] The present invention can relate to a p...  
JP2018123373A
To provide a method for efficiently separating a specific metal element from an acidic solution containing various metal elements by using an impregnated adsorbent having an extraction agent impregnated.Provided is a method for selective...  
JP2018517840A
The method of separating the metallic component in a mixture from other metal and other materials accompanying it alternatively is indicated. This method includes the process of offering a mixture into solution so that a metallic compone...  
JP6316168B2  
JP6312813B2  
JP6256875B2  
JP6251010B2  
JP6216714B2  
JP2017521551A
A refinement system of a commercial scale which uses an arc furnace using a plurality of electrolysis extraction processes with a choice of providing efficient energy recovery, raw-material recovery, and recycling capacity in order to pr...  
JP6172099B2  
JP2016521844A5  
JP6141382B2  
JP2017094236A
[Subject] Offer of an efficient extraction method of actinoid which can be used in a nuclear field or the mining-and-manufacturing field, or a rare earth. [Means for Solution] How to make it dissolve in an organic solvent and to extract ...  
JP2017511786A
U3O8Hydrogen peroxide H2O2From the uranium oxide by a reaction to UO4Step aU in which are an activation method for being activated for conversion to a hydrate, and the next is continuous3O8Preparing aqueous suspension containing powder a...  
JPWO2015075798A1
An element separation method which can reduce Drainage volume , and an element separation system are provided maintaining separation performance of the object element. The first process 2 of adjusting an element separation method of the ...  
JP6097180B2  
JP2017026536A
To provide a radioactive waste solidification method capable of shortening a storage period of a vitrified substance.In S1A, an acid aqueous solution is injected into contaminated water containing a long-half-life radionuclide (U-238) an...  
JP6048855B2  
JP6044978B2  
JP6025868B2  
JP2016172882A
[Subject] In the case of fuel reprocessing, separation recovery of the rare earth element is carried out efficiently, and reuse is made possible. [Means for Solution] A rare earth element and a precipitation process (S1) of settling high...  
JP2016168029A
[Subject] An enrichment culture method of manganese oxidation bacteria that manganese oxidation bacteria may be made dominant, a generation method of a bio-manganese oxidation thing, a metaled recovery method, and a microorganism crowd a...  
JP2016075689A5  
JP2016521844A
The present invention relates a chemical element chosen from a base metal, alkali, alkaline earth elements, Actinide , and rare earth to a method suitable for detection, capture, and/or emitting alternatively. The methods are at least on...  
JP5944409B2  
JP2016113674A
[Subject] It aims at providing an efficient extraction method of actinoid which can be used in a nuclear field or the mining-and-manufacturing field, or run Tanoido . [Means for Solution] By contacting aqueous acids containing actinoid a...  
JP5938048B2  
JP5935128B2  
JP2016102258A
[Subject] per liter -- ppm* -- a method of collecting valuable metal (for example, uranium) which exists in [from extensive concentration of several grams] solution is provided. [Means for Solution] A valuable metal is extracted from sol...  
JP5923521B2  
JP2016090341A
To provide a decomposition method for a solidified glass body capable of easily decomposing the solidified glass body.The decomposition method for a solidified glass body 10 includes a molten salt addition step 12 of adding a molten salt...  
JP2016075689A
To provide a technology that has high safety and allows energy securement.The present invention provides: an apparatus that generates power by crushing a radioactive waste, forming it in a tabular shape, and attaching a semiconductor or ...  
JP2016065273A
[Subject] A recovery method of scandium which can collect high-definition scandium from nickel oxidation ore that it is simple and efficiently is provided. [Means for Solution] A recovery method of scandium concerning the present inventi...  
JP2016053219A
To provide processes for recovering value metals from aqueous solutions containing value metals, in particular Mo and U.There is provided the processes for recovering Mo and/or other value metals (e.g., U) present in aqueous solutions fr...  
JP2016035090A
To provide a novel metal recovery method that is convenient, requires lower costs and has excellent selectivity, and a metal recovery agent for use therein.The present invention provides a process for the separation precipitation/recover...  
JP2016035109A
To provide a method and means for easily and efficiently separating and extracting a target metal from a metal dissolved solution that contains the target metal (in particular, lanthanoid element or actinoid element) and in which various...  
JP5881603B2  
JP5880131B2  
JP2015510483A5  
JP5867879B2  

Matches 201 - 250 out of 1,219