GB945184A - Improvements in or relating to plutonium extraction - Google Patents

Improvements in or relating to plutonium extraction

Info

Publication number
GB945184A
GB945184A GB2790561A GB2790561A GB945184A GB 945184 A GB945184 A GB 945184A GB 2790561 A GB2790561 A GB 2790561A GB 2790561 A GB2790561 A GB 2790561A GB 945184 A GB945184 A GB 945184A
Authority
GB
United Kingdom
Prior art keywords
solution
aqueous
extraction
plutonium
acid
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2790561A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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
Priority claimed from US85572259 external-priority patent/US3054873A/en
Priority claimed from FR835993A external-priority patent/FR1272566A/en
Application filed by Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB945184A publication Critical patent/GB945184A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
    • C22B60/02—Obtaining thorium, uranium, or other actinides
    • C22B60/04—Obtaining plutonium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G56/00—Compounds of transuranic elements
    • C01G56/001—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G99/00—Subject matter not provided for in other groups of this subclass
    • C01G99/006—Compounds containing, besides a metal not provided for elsewhere in this subclass, two or more other elements other than oxygen or hydrogen
    • 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
    • G21C19/46—Aqueous processes, e.g. by using organic extraction means, including the regeneration of these means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/06—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved
    • H01H1/08—Contacts characterised by the shape or structure of the contact-making surface, e.g. grooved wetted with mercury
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
    • H01H51/287—Details of the shape of the contact springs
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Breakers (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Contacts (AREA)

Abstract

945,184. Plutonium separation. COMMISSARIAT A L'ENERGIE ATOMIQUE. Aug. 1,1961 [Aug. 17, 1960], No. 27905/61. Heading G6R. Plutonium is recovered by extracting an aqueous nitric acid solution of irradiated nuclear fuel with a solution of a tertiary amine in an organic solvent immiscible with water, scrubbing the organic extract with aqueous nitric acid, and then re-extracting the organic extract with an aqueous acidic solution having an acidity greater than 0À1 N and a redox potential which maintains the plutonium in the tetravalent state throughout the re-extraction. The aqueous phase from the re-extraction may be washed with a dilute tertiary amine solution in an organic solvent. The aqueous acid solution used for re-extraction is preferably a mixture of nitric acid and sulphuric acid in which the molar proportion of sulphuric acid is greater than 0À25; but as an alternative perchloric acid can be used. The tertiary amine exemplified is trilaurylamine and the organic solvent dodecane together with a minor amount of octanol-2.
GB2790561A 1959-11-27 1961-08-01 Improvements in or relating to plutonium extraction Expired GB945184A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85572259 US3054873A (en) 1959-11-27 1959-11-27 Liquid-contact switch
FR835993A FR1272566A (en) 1960-08-17 1960-08-17 Process for the extraction of plutonium from aqueous solutions of irradiated fuels

Publications (1)

Publication Number Publication Date
GB945184A true GB945184A (en) 1963-12-23

Family

ID=31497177

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3688060A Expired GB927523A (en) 1959-11-27 1960-10-27 Liquid contact electric switch
GB2790561A Expired GB945184A (en) 1959-11-27 1961-08-01 Improvements in or relating to plutonium extraction

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3688060A Expired GB927523A (en) 1959-11-27 1960-10-27 Liquid contact electric switch

Country Status (5)

Country Link
CH (1) CH406169A (en)
DE (2) DE1140996B (en)
GB (2) GB927523A (en)
LU (1) LU40477A1 (en)
NL (3) NL127124C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1229618B (en) * 1963-08-26 1966-12-01 Fifth Dimension Inc Switching relay with electrically conductive liquid contact surfaces
US3331037A (en) * 1964-07-09 1967-07-11 C P Claire & Company Spherical contact structure for sealed mercury switches

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT179347B (en) * 1949-10-05 1954-08-10 Western Electric Co relay
US2868926A (en) * 1957-06-25 1959-01-13 Bell Telephone Labor Inc Switch

Also Published As

Publication number Publication date
LU40477A1 (en) 1961-10-05
DE1140916B (en) 1962-12-13
NL127124C (en) 1900-01-01
NL258407A (en) 1900-01-01
GB927523A (en) 1963-05-29
CH406169A (en) 1966-01-31
NL268034A (en) 1900-01-01
DE1140996B (en) 1962-12-13

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