Published May 25, 1973 | Version v1
Patent Metadata-only

A method for coating nuclear-fuel particles

Creators

  • 1. Compagnie pour l'Etude et la Realisation de Combustibles Atomiques (CERCA), 75 - Paris (France)

Description

Description is given of a method for manufacturing coated nuclear fuel particles for high temperature reactors, said method comprising feeding fuel-particles at the top of a fluidization furnace and submitting same to an upward flow of at least one inert gas and at least one pyro-cracking gas at a temperature of from 1,000 to 3,000 deg C. pressure within the furnace is regulated at between 1 and 20 absolute bars. The thus coated particles are used in high temperature reactors

Abstract (French)

On decrit un procede de fabrication des particules de combustible nucleaire enrobees pour reacteurs a haute temperature dans lequel on introduit des particules de combustible au sommet d'un four de fluidisation, on les soumet a l'action d'un courant ascendant d'au moins un gaz inerte et d'au moins un gaz de pyrocraquage a une temperature comprise entre 1000 et 3000 deg C. La pression regnant dans le four est reglee a une valeur comprise en 1 et 20 bars absolus. Les particules ainsi enrobees sont utilisees dans les reacteurs a haute temperature

Additional details

Additional titles

Original title (French)
Procede d'enrobage de particules de combustible nucleaire
Augmented title (English)
high-temperature reactors

Publishing Information

Imprint Pagination
6 p.
IPC:
Int. Cl. G21c3/62; C04b35/00.
IPC
Int. Cl. G21c3/62; C04b35/00.
Patent number
FR patent document 2231078/A/

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
7231118
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
COATED FUEL PARTICLES; COATINGS; FABRICATION; FLUIDIZED BEDS; HTGR TYPE REACTORS; INERT ATMOSPHERE; PROPYLENE; PYROLYTIC CARBON; RARE GASES; SILICON CARBIDES; URANIUM DIOXIDE; VERY HIGH TEMPERATURE
Descriptors DEC
ACTINIDE COMPOUNDS; ALKENES; CARBIDES; CARBON; CARBON COMPOUNDS; CHALCOGENIDES; CONTROLLED ATMOSPHERES; ELEMENTS; FUEL PARTICLES; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; HYDROCARBONS; NONMETALS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; REACTORS; SILICON COMPOUNDS; URANIUM COMPOUNDS; URANIUM OXIDES

Optional Information

Notes
Available from Institut National de la Propriete Industrielle, Paris (France).