Title: PREPARATION OF SPHERICAL URANIUM DIOXIDE PARTICLES

Abstract

This patent relates to the preparation of high-density, spherical UO/sub 2/ particles 80 to 150 microns in diameter. Sinterable UO/sub 2/ powder is wetted with 3 to 5 weight per cent water and tumbled for at least 48 hours. The resulting spherical particles are then sintered. The sintered particles are useful in dispersion-type fuel elements for nuclear reactors. (AEC)

Inventors:

Levey, Jr, R P; Smith, A E

Issue Date:

1963-04-30

OSTI Identifier:

4710374

Patent Number(s):

3087781

Assignee:

U.S. Atomic Energy Commission

Patent Classifications (CPCs):

Y - NEW / CROSS SECTIONAL TECHNOLOGIES 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

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES 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

Y02E30/30 - Nuclear fission reactors

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS

C01P2006/12 - Surface area
C01P2004/61 - Micrometer sized, i.e. from 1-100 micrometer
C01P2004/32 - Spheres
C01P2006/11 - Powder tap density

C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F

C01G43/025 - Uranium dioxide

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

B01J2/12 - in rotating drums

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S376/901 - Fuel

G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS

G21C3/623 - {Oxide fuels}

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NSA Number:

NSA-17-018694

Resource Type:

Patent

Resource Relation:

Other Information: Orig. Receipt Date: 31-DEC-63

Country of Publication:

United States

Language:

English

Subject:

METALS, CERAMICS, AND OTHER MATERIALS; DENSITY; FUEL ELEMENTS; IMPREGNATION; PREPARATION; REACTORS; SINTERED MATERIALS; SINTERING; SPHERES; URANIUM DIOXIDE; WATER