BE785836A - Recovery of plutonium - from fuel scrap contg mixed oxides of uranium and plutonium - Google Patents

Recovery of plutonium - from fuel scrap contg mixed oxides of uranium and plutonium

Info

Publication number
BE785836A
BE785836A BE785836A BE785836A BE785836A BE 785836 A BE785836 A BE 785836A BE 785836 A BE785836 A BE 785836A BE 785836 A BE785836 A BE 785836A BE 785836 A BE785836 A BE 785836A
Authority
BE
Belgium
Prior art keywords
plutonium
recovery
uranium
mixed oxides
scrap
Prior art date
Application number
BE785836A
Other languages
French (fr)
Inventor
R H Heremans
J J Vandersteene
Original Assignee
Cen Centre Energie Nucleaire
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 Cen Centre Energie Nucleaire filed Critical Cen Centre Energie Nucleaire
Priority to BE785836A priority Critical patent/BE785836A/en
Publication of BE785836A publication Critical patent/BE785836A/en

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/007—Recovery of isotopes from radioactive waste, e.g. fission products
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G56/00—Compounds of transuranic elements
    • C01G56/004—Compounds of plutonium
    • C01G56/005—Oxides; Hydroxides
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • General Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

Method of recovery of plutonium as PiO2 from scrap and reject fuel element material of UO2 + PuO2 comprises reacting the scrap with fluorine at >400 degrees C in the presence of alumina as catalyst, separating the gaseous UF6 and PuF6 mixt. obtd. by selective absorption of PuF6 on NaF at >86 degrees C, dissolving the complex fluoride in nitric acid soln. pptg. the plutonium as oxalate using oxalic acid and finally calcining in air to give PuO2. The UF6 may be crystallised out giving a further byproduct. The process uses less expensive equipment and is much less complicated than prior art processes.
BE785836A 1972-07-04 1972-07-04 Recovery of plutonium - from fuel scrap contg mixed oxides of uranium and plutonium BE785836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BE785836A BE785836A (en) 1972-07-04 1972-07-04 Recovery of plutonium - from fuel scrap contg mixed oxides of uranium and plutonium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE785836A BE785836A (en) 1972-07-04 1972-07-04 Recovery of plutonium - from fuel scrap contg mixed oxides of uranium and plutonium

Publications (1)

Publication Number Publication Date
BE785836A true BE785836A (en) 1972-11-03

Family

ID=3859906

Family Applications (1)

Application Number Title Priority Date Filing Date
BE785836A BE785836A (en) 1972-07-04 1972-07-04 Recovery of plutonium - from fuel scrap contg mixed oxides of uranium and plutonium

Country Status (1)

Country Link
BE (1) BE785836A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498366A1 (en) * 1981-01-22 1982-07-23 Commissariat Energie Atomique Treatment of sodium fluoride absorbent contaminated with plutonium - where repeated leaching with nitric acid dissolves part of sodium fluoride so plutonium is conc. in residue
GB2360124A (en) * 2000-01-03 2001-09-12 Cogema A method and apparatus for continuously transforming plutonium oxalate into plutonium oxide
CN109727695A (en) * 2017-10-30 2019-05-07 中核四0四有限公司 A kind of abrading-ball stains the cleaning and recovery method of MOX powder

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2498366A1 (en) * 1981-01-22 1982-07-23 Commissariat Energie Atomique Treatment of sodium fluoride absorbent contaminated with plutonium - where repeated leaching with nitric acid dissolves part of sodium fluoride so plutonium is conc. in residue
GB2360124A (en) * 2000-01-03 2001-09-12 Cogema A method and apparatus for continuously transforming plutonium oxalate into plutonium oxide
GB2360124B (en) * 2000-01-03 2003-11-26 Cogema A method and apparatus for continuously transforming plutonium oxalate into plutonium oxide
CN109727695A (en) * 2017-10-30 2019-05-07 中核四0四有限公司 A kind of abrading-ball stains the cleaning and recovery method of MOX powder

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