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FR2998484B1 - PROCESS FOR PRODUCING SOLID MICROSPHERLES OF ACTINIDE COMPOUNDS FROM AN ACTINIDE SALT SOLUTION AND THE ASSOCIATED DEVICE - Google Patents

PROCESS FOR PRODUCING SOLID MICROSPHERLES OF ACTINIDE COMPOUNDS FROM AN ACTINIDE SALT SOLUTION AND THE ASSOCIATED DEVICE

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Publication number
FR2998484B1
FR2998484B1 FR1261365A FR1261365A FR2998484B1 FR 2998484 B1 FR2998484 B1 FR 2998484B1 FR 1261365 A FR1261365 A FR 1261365A FR 1261365 A FR1261365 A FR 1261365A FR 2998484 B1 FR2998484 B1 FR 2998484B1
Authority
FR
France
Prior art keywords
actinide
reactor
droplets
salt solution
microspherules
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.)
Active
Application number
FR1261365A
Other languages
French (fr)
Other versions
FR2998484A1 (en
Inventor
Meryl Brothier
Dominique Moulinier
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
Commissariat a lEnergie Atomique et aux Energies Alternatives 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
Application filed by Commissariat a lEnergie Atomique CEA, Commissariat a lEnergie Atomique et aux Energies Alternatives CEA filed Critical Commissariat a lEnergie Atomique CEA
Priority to FR1261365A priority Critical patent/FR2998484B1/en
Priority to PCT/EP2013/074931 priority patent/WO2014083092A1/en
Publication of FR2998484A1 publication Critical patent/FR2998484A1/en
Application granted granted Critical
Publication of FR2998484B1 publication Critical patent/FR2998484B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J4/00—Feed or outlet devices; Feed or outlet control devices
    • B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
    • B01J4/002—Nozzle-type elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
    • B01J10/002—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor carried out in foam, aerosol or bubbles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/005—Separating solid material from the gas/liquid stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/1845—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with particles moving upwards while fluidised
    • B01J8/1863—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with particles moving upwards while fluidised followed by a downward movement outside the reactor and subsequently re-entering it
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G43/00—Compounds of uranium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G43/00—Compounds of uranium
    • C01G43/01—Oxides; Hydroxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G56/00—Compounds of transuranic elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00389—Controlling the temperature using electric heating or cooling elements
    • B01J2208/00415—Controlling the temperature using electric heating or cooling elements electric resistance heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00743—Feeding or discharging of solids
    • B01J2208/00761—Discharging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00893—Feeding means for the reactants
    • B01J2208/00902—Nozzle-type feeding elements
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/30—Particle morphology extending in three dimensions
    • C01P2004/32—Spheres
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/60—Particles characterised by their size
    • C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

La présente invention concerne un Procédé de fabrication de microsphérules solides de composés d'actinide à partir d'une solution de sel d'actinide comprenant les étapes successives suivantes : fractionnement de la solution de sel d'actinide sous forme de gouttelettes ; injection de la solution de sel d'actinide sous forme de gouttelettes au niveau d'une entrée d'injection dans un réacteur de précipitation (8) ; caractérisé en ce qu'il comprend les étapes ultérieures suivantes : injection d'un gaz de transport dans ledit réacteur, au moins depuis une première zone du réacteur de précipitation (8) de manière à transporter dans ledit réacteur des gouttelettes et des microsphérules fabriquées dans ledit réacteur en direction d'une deuxième zone du réacteur située en aval de la première zone relativement au sens de circulation du gaz de transport ; établissement d'une pression partielle d'ammoniac gazeux en tant que gaz de précipitation dans le réacteur de précipitation (8) destiné à réagir avec les gouttelettes ; précipitation dans le réacteur de précipitation (8) des gouttelettes de solution de sel d'actinide avec l'ammoniac gazeux de sorte à former des microsphérules solide de composés d'actinide ; récupération des microsphérules d'actinide au niveau d'une sortie de récupération agencée dans la deuxième zone du réacteur (8) ; le gaz de transport étant injecté dans le réacteur avec un débit tel que sa vitesse superficielle est supérieure ou égale à la vitesse terminale de chute libre des gouttelettes et microsphérules de sorte à s'opposer à leur chute par gravité et à les transporter jusqu'à la sortie de récupération. Le présent procédé et le dispositif associé peuvent s'intégrer plus généralement dans un procédé de fabrication de combustibles nucléaires.The present invention relates to a method of manufacturing solid microspherules of actinide compounds from an actinide salt solution comprising the following successive steps: fractionation of the actinide salt solution in the form of droplets; injection of the actinide salt solution in the form of droplets at an injection inlet in a precipitation reactor (8); characterized in that it comprises the following subsequent steps: injection of a transport gas into said reactor, at least from a first zone of the precipitation reactor (8) so as to transport into said reactor droplets and microspherules produced in said reactor in the direction of a second zone of the reactor situated downstream of the first zone relative to the direction of circulation of the transport gas; establishing a partial pressure of gaseous ammonia as a precipitation gas in the precipitation reactor (8) for reacting with the droplets; precipitating in the precipitation reactor (8) droplets of actinide salt solution with gaseous ammonia so as to form solid microspherules of actinide compounds; recovery of the actinide microspherules at a recovery outlet arranged in the second zone of the reactor (8); the transport gas being injected into the reactor at a rate such that its surface speed is greater than or equal to the terminal free fall speed of the droplets and microspherules so as to oppose their fall by gravity and to transport them to the recovery output. The present process and the associated device can be integrated more generally into a process for manufacturing nuclear fuels.

FR1261365A 2012-11-28 2012-11-28 PROCESS FOR PRODUCING SOLID MICROSPHERLES OF ACTINIDE COMPOUNDS FROM AN ACTINIDE SALT SOLUTION AND THE ASSOCIATED DEVICE Active FR2998484B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1261365A FR2998484B1 (en) 2012-11-28 2012-11-28 PROCESS FOR PRODUCING SOLID MICROSPHERLES OF ACTINIDE COMPOUNDS FROM AN ACTINIDE SALT SOLUTION AND THE ASSOCIATED DEVICE
PCT/EP2013/074931 WO2014083092A1 (en) 2012-11-28 2013-11-28 Process for producing solid microspherules of actinide compounds from an actinide salt solution and associated device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1261365A FR2998484B1 (en) 2012-11-28 2012-11-28 PROCESS FOR PRODUCING SOLID MICROSPHERLES OF ACTINIDE COMPOUNDS FROM AN ACTINIDE SALT SOLUTION AND THE ASSOCIATED DEVICE

Publications (2)

Publication Number Publication Date
FR2998484A1 FR2998484A1 (en) 2014-05-30
FR2998484B1 true FR2998484B1 (en) 2014-12-05

Family

ID=48128422

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1261365A Active FR2998484B1 (en) 2012-11-28 2012-11-28 PROCESS FOR PRODUCING SOLID MICROSPHERLES OF ACTINIDE COMPOUNDS FROM AN ACTINIDE SALT SOLUTION AND THE ASSOCIATED DEVICE

Country Status (2)

Country Link
FR (1) FR2998484B1 (en)
WO (1) WO2014083092A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2088170B1 (en) * 1970-05-25 1975-01-10 Commissariat Energie Atomique
AT366845B (en) * 1977-05-24 1982-05-10 Oesterr Forsch Seibersdorf METHOD FOR PRODUCING SPHERICAL FUEL PARTICLES
US5139709A (en) * 1991-02-04 1992-08-18 Institute Of Nuclear Energy Research, Chinese Atomic Energy Council, Taiwan Process for converting uranyl compounds to UO2 via ADU
DE102007037473A1 (en) * 2007-05-24 2008-11-27 Nukem Technologies Gmbh Process for the preparation of spherical fuel or breeding particles

Also Published As

Publication number Publication date
FR2998484A1 (en) 2014-05-30
WO2014083092A1 (en) 2014-06-05

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