FR2366870A1 - Enrobage de particules, notamment de combustible nucleaire, a l'aide d'une substance contenue dans un gaz de reaction - Google Patents

Enrobage de particules, notamment de combustible nucleaire, a l'aide d'une substance contenue dans un gaz de reaction

Info

Publication number
FR2366870A1
FR2366870A1 FR7729765A FR7729765A FR2366870A1 FR 2366870 A1 FR2366870 A1 FR 2366870A1 FR 7729765 A FR7729765 A FR 7729765A FR 7729765 A FR7729765 A FR 7729765A FR 2366870 A1 FR2366870 A1 FR 2366870A1
Authority
FR
France
Prior art keywords
particles
coating
reaction gas
nuclear fuel
substance contained
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.)
Withdrawn
Application number
FR7729765A
Other languages
English (en)
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.)
General Atomics Corp
Original Assignee
General Atomics Corp
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 US05/730,000 external-priority patent/US4080927A/en
Priority claimed from US05/735,186 external-priority patent/US4116160A/en
Priority claimed from US05/749,876 external-priority patent/US4098224A/en
Application filed by General Atomics Corp filed Critical General Atomics Corp
Publication of FR2366870A1 publication Critical patent/FR2366870A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
    • C23C16/442—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using fluidised bed process
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/42—Selection of substances for use as reactor fuel
    • G21C3/58—Solid reactor fuel Pellets made of fissile material
    • G21C3/62—Ceramic fuel
    • G21C3/626—Coated fuel particles
    • 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

Abstract

Enrobage de particules à l'aide d'une substance contenue dans un gaz de réaction. Une chambre d'enrobage cylindrique reçoit les particules à enrober; un élément conique renverse à sommet dirigé vers le bas forme une base conique pour la chambre; des conduits d'écoulement créent une circulation de gaz inerte au-dessus de la base conique et y forment un lit fluidisé de particules; et une base allongée s'étend vers le haut depuis le sommet de la base conique avec son orifice de sortie situé au-dessus du sommet pour introduire un gaz de réaction dans la chambre Application particulière : enrobage de particules de combustible nucléaire, par carbone pyrolytique ou carbure métallique.
FR7729765A 1976-10-06 1977-10-04 Enrobage de particules, notamment de combustible nucleaire, a l'aide d'une substance contenue dans un gaz de reaction Withdrawn FR2366870A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US73023576A 1976-10-06 1976-10-06
US05/730,000 US4080927A (en) 1976-10-06 1976-10-06 Fluidized bed-gas coater apparatus
US05/735,186 US4116160A (en) 1976-10-26 1976-10-26 Fluidized bed, gas coating apparatus
US05/749,876 US4098224A (en) 1976-12-13 1976-12-13 Gas coating apparatus

Publications (1)

Publication Number Publication Date
FR2366870A1 true FR2366870A1 (fr) 1978-05-05

Family

ID=27505591

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7729765A Withdrawn FR2366870A1 (fr) 1976-10-06 1977-10-04 Enrobage de particules, notamment de combustible nucleaire, a l'aide d'une substance contenue dans un gaz de reaction

Country Status (4)

Country Link
JP (1) JPS5345676A (fr)
DE (1) DE2744611A1 (fr)
FR (1) FR2366870A1 (fr)
GB (1) GB1581283A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041259A1 (fr) * 1980-06-03 1981-12-09 Forschungszentrum Jülich Gmbh Four fluidisé et procédé pour le vider
EP0050815A1 (fr) * 1980-10-25 1982-05-05 Forschungszentrum Jülich Gmbh Dispositif de décharge d'un four à lit fluidisé pour enrober des noyaux de combustible ou de matière surrégénératrice

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5617063A (en) * 1979-07-20 1981-02-18 Mitsubishi Electric Corp Manufacture of semiconductor device
JPS5892272A (ja) * 1981-11-27 1983-06-01 Mitsubishi Electric Corp 負帰還型ＧａＡｓマイクロ波モノリシツク増幅回路装置
JPS5892271A (ja) * 1981-11-27 1983-06-01 Mitsubishi Electric Corp ＧａＡｓマイクロ波モノリシツク集積回路装置
US5569329A (en) * 1995-06-06 1996-10-29 Carbomedics, Inc. Fluidized bed with uniform heat distribution and multiple port nozzle
JP2006003092A (ja) * 2004-06-15 2006-01-05 Nuclear Fuel Ind Ltd 流動床装置の被覆燃料物質回収方法及び装置
FR2937053B1 (fr) * 2008-10-09 2010-12-17 Commissariat Energie Atomique Dispositif pour la synthese de nanoparticules par depot chimique en phase vapeur en lit fluidise

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118006A1 (fr) * 1970-12-19 1972-07-28 Kernforschungsanlage Juelich
DE2102438A1 (en) * 1971-01-20 1972-08-03 Nukem Gmbh Fluid bed pyrolytic carbon coating - in bed with reaction gas nozzle ringed by carrier gas nozzles
FR2229120A1 (fr) * 1973-05-08 1974-12-06 Euratom
FR2242749A1 (fr) * 1973-08-27 1975-03-28 Hobeg Hochtemperaturreaktor
FR2280425A1 (fr) * 1974-08-02 1976-02-27 Euratom Procede et four a lit fluidise pour former des revetements sur des particules de combustible nucleaire et autres

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2118006A1 (fr) * 1970-12-19 1972-07-28 Kernforschungsanlage Juelich
DE2102438A1 (en) * 1971-01-20 1972-08-03 Nukem Gmbh Fluid bed pyrolytic carbon coating - in bed with reaction gas nozzle ringed by carrier gas nozzles
FR2229120A1 (fr) * 1973-05-08 1974-12-06 Euratom
FR2242749A1 (fr) * 1973-08-27 1975-03-28 Hobeg Hochtemperaturreaktor
FR2280425A1 (fr) * 1974-08-02 1976-02-27 Euratom Procede et four a lit fluidise pour former des revetements sur des particules de combustible nucleaire et autres

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041259A1 (fr) * 1980-06-03 1981-12-09 Forschungszentrum Jülich Gmbh Four fluidisé et procédé pour le vider
EP0050815A1 (fr) * 1980-10-25 1982-05-05 Forschungszentrum Jülich Gmbh Dispositif de décharge d'un four à lit fluidisé pour enrober des noyaux de combustible ou de matière surrégénératrice

Also Published As

Publication number Publication date
DE2744611A1 (de) 1978-04-13
JPS5345676A (en) 1978-04-24
JPS6111661B2 (fr) 1986-04-04
GB1581283A (en) 1980-12-10

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