ClassID:

200335

G21C19/46 - CPC Classification

Classification description:

Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel; Reprocessing of irradiated fuel of irradiated solid fuel Aqueous processes, e.g. by using organic extraction means, including the regeneration of these means

Recent Application in this class:
#1
20260008689
2026-01-08

INSTALLATION AND METHOD FOR CONVERTING URANIUM HEXAFLUORIDE TO URANIUM DIOXIDE

#2
20240304351
2024-09-12

SEPARATION OF METAL IONS BY LIQUID-LIQUID EXTRACTION

#3
20240120122
2024-04-11

Separation apparatus for high-level nuclear waste

#4
20240120120
2024-04-11

MODULAR, INTEGRATED, AUTOMATED, COMPACT, AND PROLIFERATION-HARDENED METHOD TO CHEMICALLY RECYCLE USED NUCLEAR FUEL (UNF) ORIGINATING FROM NUCLEAR REACTORS TO RECOVER A MIXTURE OF TRANSURANIC (TRU) ELEMENTS FOR ADVANCED REACTOR FUEL, AND TO RECYCLE URANIUM AND ZIRCONIUM

#5
20230360813
2023-11-09

Modular, integrated, automated, compact, and proliferation-hardened method to chemically recycle used nuclear fuel (UNF) originating from nuclear reactors to recover a mixture of transuranic (TRU) elements for advanced reactor fuel to recycle uranium and zirconium

#6
20230245794
2023-08-03

Modular, integrated, automated, compact, and proliferation-hardened method to chemically recycle used nuclear fuel (UNF) originating from nuclear reactors to recover a mixture of transuranic (TRU) elements for advanced reactor fuel to recycle uranium and zirconium

#7
20210391093
2021-12-16

Equipment for producing nuclear fuel powder

#8
20210387863
2021-12-16

INSTALLATION AND METHOD FOR CONVERTING URANIUM HEXAFLUORIDE TO URANIUM DIOXIDE

#9
20210363609
2021-11-25

Carbamides for separating uranium(VI) and plutonium(IV) without reducing the plutonium(IV)

#10
20210332002
2021-10-28

Dissymmetric N,N-dialkylamides used particularly for separating uranium(VI) from plutonium(IV), synthesis thereof and uses of same

#11
20210166826
2021-06-03

Method for preparing a powder comprising particles of triuranium octoxide and particles of plutonium dioxide

#12
20200365289
2020-11-19

SYSTEMS AND METHODS FOR THERMAL MOLTEN SALT REACTOR FUEL-SALT PREPARATION

#13
20200232067
2020-07-23

Method for recycling plutonium from spent radioactive fuel

#14
20200010335
2020-01-09

Method to produce salts containing actinide halides

#15
20190287691
2019-09-19

Separation of metal ions by liquid-liquid extraction

#16
20190189298
2019-06-20

Method for dissolving nuclear fuel

#17
20180286527
2018-10-04

Use of hydroxyiminoalkanoic acids as anti-nitrous agents in operations of reductive stripping of plutonium

#18
20180218798
2018-08-02

Method for the treatment of an aqueous nitric solution resulting from dissolving spent nuclear fuel, said method being performed in a single cycle and without requiring any operation involving reductive stripping of plutonium

#19
20180202057
2018-07-19

Electrolytic tank and electrolytic method for high-efficiency dry reprocessing

#20
20180051381
2018-02-22

Method of recovering nuclear fuel material

#21
20180010208
2018-01-11

Removal of radionuclides from mixtures

#22
20160348254
2016-12-01

Method for controlling aluminum dissolution

#23
20160314861
2016-10-27

Method for processing spent nuclear fuel comprising a step for decontaminating uranium (VI) from at least one actinide (IV) by complexing this actinide (IV)

#24
20160272505
2016-09-22

Process for preparing a powder comprising a solid solution of uranium dioxide and of a dioxide of at least one other actinide and/or lanthanide element

#25
20160225473
2016-08-04

Method of recovering nuclear fuel material

#26
20160225472
2016-08-04

POLYMERIC CHELATORS FOR METAL ION EXTRACTION AND SEPARATION

#27
20160225471
2016-08-04

FUNCTIONAL CONDUCTING POLYMERS FOR REDOX MEDIATED SEPARATIONS OF F-ELEMENTS

#28
20150085964
2015-03-26

Recovery of uranium from an irradiated solid target after removal of molybdenum-99 produced from the irradiated target

#29
20150085963
2015-03-26

Recovering and recycling uranium used for production of molybdenum-99

#30
20140308029
2014-10-16

Process and apparatus for treating a gas stream

#31
20140231709
2014-08-21

Purification of metals

#32
20140044616
2014-02-13

Method for precipitating one or more solutes

#33
20140030172
2014-01-30

2,9-dipyridyl-1,10-phenanthroline derivatives useful as actinide ligands, method for synthesizing same, and uses thereof

#34
20130336854
2013-12-19

Compositions and methods for treating nuclear fuel

#35
20130319178
2013-12-05

Process for separating at least one platinoid element from an acidic aqueous solution comprising, besides this platinoid element, one or more other chemical elements

#36
20130277228
2013-10-24

Method for corium and used nuclear fuel stabilization processing

#37
20130259777
2013-10-03

Tributyl phosphate-nitrate solvent extraction process for producing high purity nuclear grade rare earth metal oxides

#38
20130259776
2013-10-03

Process for separating americium from other metallic elements present in an acidic aqueous or organic phase

#39
20130202501
2013-08-08

Process for reprocessing spent nuclear fuel not requiring a plutonium-reducing stripping operation

#40
20120328492
2012-12-27

Use of certain chemical elements for inhibiting the formation of precipitates containing zirconium molybdate in an aqueous solution containing the element molybdenum and the element zirconium

#41
20120300891
2012-11-29

Methods of separating medical isotopes from uranium solutions

#42
20120247276
2012-10-04

Method for purifying the uranium from a natural uranium concentrate

#43
20120228788
2012-09-13

Method for preparing a porous nuclear fuel based on at least one minor actinide

#44
20120205322
2012-08-16

METHOD FOR OXIDATION TREATMENT OF A SUBSTRATE FOR THE ADSORPTION OF RADIONUCLIDES

#45
20120186396
2012-07-26

Compounds useful as ligands of actinides, their synthesis and their uses

#46
20120172626
2012-07-05

Dialkyldiaza-tetraalkyloctane diamide derivatives useful for the separation of trivalent actinides from lanthanides and process for the preparation thereof

#47
20120160061
2012-06-28

Increase in the separation factor between americium and curium and/or between lanthanides in a liquid-liquid extraction operation

#48
20120152059
2012-06-21

Method for selectively recovering americium from a nitric aqueous phase

#49
20120128555
2012-05-24

Method for treating spent nuclear fuel

#50
20120090431
2012-04-19

Method of recovering enriched radioactive technetium and system therefor

#51
20110263837
2011-10-27

Method for preparing an actinide(s) oxalate and for preparing an actinide(s) compound

#52
20110206579
2011-08-25

Method and apparatus for the extraction and processing of molybdenum-99

#53
20110201041
2011-08-18

Encapsulation of nano-materials for fluid purification/separation

#54
20110036777
2011-02-17

Decontamination of radioactive liquid effluent by solid-liquid extraction using a recycle loop

#55
20110024704
2011-02-03

Compositions and methods for treating nuclear fuel

#56
20100316543
2010-12-16

Method for separating and recycling uranium and fluorine form solution

#57
20100310438
2010-12-09

Use of butyraldehyde oxime as an anti-nitrous agent in an operation for the reductive stripping of plutonium

#58
20100301287
2010-12-02

Process for Treating Spent Nuclear Fuel

#59
20100219344
2010-09-02

Electrochemically Modulated Separations for In-line and At-line Monitoring of Actinides in High-Volume Process Streams

#60
20100202943
2010-08-12

Purification of metals

#61
20100196229
2010-08-05

Solute precipitation method and device

#62
20100124522
2010-05-20

Process for the extraction of technetium from uranium

#63
20100099938
2010-04-22

Method for extraction of metals by methyliminobisalkylacetamide

#64
20100038249
2010-02-18

Method for reprocessing spent nuclear fuel and centrifugal extractor therefor

#65
20100034713
2010-02-11

Process for separating a chemical element from uranium (VI) starting from a nitric aqueous phase, in an extraction cycle for the uranium

#66
20090320646
2009-12-31

Method for selective separation of trivalent and tetravalent actinoids from trivalent lanthanoids using hybrid donor type extractant having functional group carrying active oxygen and nitrogen atoms

#67
20090310733
2009-12-17

Demineralizer of primary coolant system in pressurized-water reactor power plant and method for purifying primary cooling water in pressurized-water reactor power plant

#68
20090294299
2009-12-03

SPENT FUEL REPROCESSING METHOD

#69
20090218289
2009-09-03

RADIONUCLIDE RESINS

#70
20090184298
2009-07-23

PROCESS FOR REPROCESSING A SPENT NUCLEAR FUEL AND OF PREPARING A MIXED URANIUM-PLUTONIUM OXIDE

#71
20090184051
2009-07-23

Grouped separation of actinides from a strongly acidic aqueous phase

#72
20090120880
2009-05-14

Process for preparing magnetic particles for selectively removing contaminants from solution

#73
20090068075
2009-03-12

Sodium salt recycling process for use in wet reprocessing process of spent nuclear fuel

#74
20080245671
2008-10-09

Electrochemical Process to Recycle Aqueous Alkali Chemicals Using Ceramic Ion Conducting Solid Membranes

#75
20080224106
2008-09-18

PROCESS FOR TREATING COMPOSITIONS CONTAINING URANIUM AND PLUTONIUM

#76
20080134837
2008-06-12

Method and system for recovering metal from metal-containing materials

#77
20080089819
2008-04-17

Purex method and its uses

#78
20080014133
2008-01-17

Extraction of radionuclides by crown ether-containing extractants

#79
20070290178
2007-12-20

Process for reprocessing a spent nuclear fuel and of preparing a mixed uranium-plutonium oxide

#80
20060151326
2006-07-13

Electrolytic apparatus for use in oxide electrowinning method

#81
20060147359
2006-07-06

Method for separating uranium (VI) from actinides(IV) and/or actinides (VI) and its uses

#82
20060110303
2006-05-25

Process for the dissolution of actinic oxides

#83
20060016689
2006-01-26

Mediated electrochemical oxidation for decontamination

#84
20050247633
2005-11-10

Treatment process for removing radioactive thorium from solvent extraction liquid effluent

#85
17937134
2023-08-15

Separation apparatus for high-level nuclear waste

#86
15378191
2019-05-21

Reduction-oxidation of actinides extraction process (ROANEX) for used nuclear fuel recycling