WO2003038836A3 - Process for controlling valence states - Google Patents

Process for controlling valence states Download PDF

Info

Publication number
WO2003038836A3
WO2003038836A3 PCT/GB2002/004875 GB0204875W WO03038836A3 WO 2003038836 A3 WO2003038836 A3 WO 2003038836A3 GB 0204875 W GB0204875 W GB 0204875W WO 03038836 A3 WO03038836 A3 WO 03038836A3
Authority
WO
WIPO (PCT)
Prior art keywords
metal ion
semiconductor photocatalyst
controlling
stabiliser
oxidation state
Prior art date
Application number
PCT/GB2002/004875
Other languages
French (fr)
Other versions
WO2003038836A2 (en
Inventor
Colin Boxall
Robin John Taylor
Original Assignee
British Nuclear Fuels Plc
Colin Boxall
Robin John Taylor
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Nuclear Fuels Plc, Colin Boxall, Robin John Taylor filed Critical British Nuclear Fuels Plc
Priority to EP20020772568 priority Critical patent/EP1454326A2/en
Priority to JP2003541000A priority patent/JP2005508244A/en
Priority to AU2002337328A priority patent/AU2002337328A1/en
Publication of WO2003038836A2 publication Critical patent/WO2003038836A2/en
Publication of WO2003038836A3 publication Critical patent/WO2003038836A3/en

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—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
    • G21C19/42—Reprocessing of irradiated fuel
    • G21C19/44—Reprocessing of irradiated fuel of irradiated solid fuel
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—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
    • G21C19/42—Reprocessing of irradiated fuel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Abstract

The present invention provides a process for controlling the oxidation state of a metal ion wherein the oxidation state or valency of the metal ion is changed or maintained by photocatalysis. The is preferably concerned with controlling oxidation states or valencies of metal ions in nuclear fuel reprocessing and most preferably comprises adding a particulate semiconductor photocatalyst and a soluble electron donor for the semiconductor photocatalyst to a solution containing dissolved actinide metal ions, and irradiating the semiconductor photocatalyst with electromagnetic or ionising radiation. The process typically involves a system which is further modified by the addition of a soluble stabiliser for actinide metal ion reduction, the stabiliser being capable of suppressing the action of any photogenerated substance that may promote inhibition of the desired reduction reaction. The process avoids the complex reprocessing procedures which are associated with the methods of the prior art.
PCT/GB2002/004875 2001-10-30 2002-10-30 Process for controlling valence states WO2003038836A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20020772568 EP1454326A2 (en) 2001-10-30 2002-10-30 Process for controlling valence states
JP2003541000A JP2005508244A (en) 2001-10-30 2002-10-30 How to control the valence state
AU2002337328A AU2002337328A1 (en) 2001-10-30 2002-10-30 Process for controlling valence states

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0125951.4 2001-10-30
GB0125951A GB0125951D0 (en) 2001-10-30 2001-10-30 Process for controlling valence states

Publications (2)

Publication Number Publication Date
WO2003038836A2 WO2003038836A2 (en) 2003-05-08
WO2003038836A3 true WO2003038836A3 (en) 2003-12-31

Family

ID=9924730

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/004875 WO2003038836A2 (en) 2001-10-30 2002-10-30 Process for controlling valence states

Country Status (8)

Country Link
EP (1) EP1454326A2 (en)
JP (1) JP2005508244A (en)
KR (1) KR20050040853A (en)
CN (1) CN1578989A (en)
AU (1) AU2002337328A1 (en)
GB (1) GB0125951D0 (en)
RU (1) RU2004115750A (en)
WO (1) WO2003038836A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2294582T3 (en) 2008-05-02 2019-02-28 Shine Medical Technologies, Inc. Device and method for producing medical isotopes
WO2012003009A2 (en) 2010-01-28 2012-01-05 Shine Medical Technologies, Inc. Segmented reaction chamber for radioisotope production
AU2011349525B2 (en) * 2010-12-21 2015-05-21 Cytec Technology Corp. Microdispersions of hydroxamated polymers and methods of making and using them
US10734126B2 (en) 2011-04-28 2020-08-04 SHINE Medical Technologies, LLC Methods of separating medical isotopes from uranium solutions
IN2014DN09137A (en) * 2012-04-05 2015-05-22 Shine Medical Technologies Inc
CN103896345A (en) * 2014-02-27 2014-07-02 中国原子能科学研究院 Method and device for oxidative adjustment of plutonium valence with NOx
CN112695213B (en) * 2020-12-03 2022-09-09 北京工业大学 Method for extracting rare earth from waste FCC catalyst by acid leaching coupling photoreduction

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1569268A (en) * 1967-06-16 1969-05-30
EP0233498A2 (en) * 1986-01-22 1987-08-26 Hitachi, Ltd. Process and apparatus of photoelectrocalalytically reducing noble metals in a nitric acid solution
JPH02208210A (en) * 1989-02-07 1990-08-17 Hitachi Ltd Method and apparatus for oxidizing substance dissolved in nitric acid solution
US5849200A (en) * 1993-10-26 1998-12-15 E. Heller & Company Photocatalyst-binder compositions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06102148B2 (en) * 1986-01-22 1994-12-14 株式会社日立製作所 Method and apparatus for oxidizing or reducing dissolved substances
JPH08193B2 (en) * 1993-01-18 1996-01-10 株式会社日立製作所 Nuclear fuel reprocessing waste liquid treatment method
JPH08117588A (en) * 1994-10-20 1996-05-14 Fujikura Kasei Co Ltd Electric field coagulation type fluidized particle and apparatus using the same
GB9603059D0 (en) * 1996-02-14 1996-08-28 British Nuclear Fuels Plc Nuclear fuel processing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1569268A (en) * 1967-06-16 1969-05-30
EP0233498A2 (en) * 1986-01-22 1987-08-26 Hitachi, Ltd. Process and apparatus of photoelectrocalalytically reducing noble metals in a nitric acid solution
JPH02208210A (en) * 1989-02-07 1990-08-17 Hitachi Ltd Method and apparatus for oxidizing substance dissolved in nitric acid solution
US5849200A (en) * 1993-10-26 1998-12-15 E. Heller & Company Photocatalyst-binder compositions

Also Published As

Publication number Publication date
RU2004115750A (en) 2005-05-27
KR20050040853A (en) 2005-05-03
JP2005508244A (en) 2005-03-31
EP1454326A2 (en) 2004-09-08
CN1578989A (en) 2005-02-09
GB0125951D0 (en) 2001-12-19
AU2002337328A1 (en) 2003-05-12
WO2003038836A2 (en) 2003-05-08

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