Published December 23, 1976 | Version v1
Patent Open

Method for manufacturing directly extrudable, fluid granulated material from uranium dioxide, free of binding agent, with good sintering capability

Creators

Description

A method is described for manufacturing directly extrudable, fluid granulated uranium dioxide, free of binding agent, with good sintering properties from a non sinta-active uranium dioxide powder. According to the given process, the uranium dioxide powder is activated by fine grinding to grain sizes of < = 1 μm up to 5 μm and subsequently dry-granulated to obtain round particles. The granulated material may then be extruded to forme pellets and sintered. (GSC)

Availability note (English)

MF available from INIS under the Report Number; Available from Dt. Patentamt, Muenchen (FRG).

Abstract (German)

Es wird ein Verfahren beschrieben zur Herstellung eines bindemittelfreien, direkt verpressbaren, rieselfaehigen Urandioxidgranulats mit guten Sintereigenschaften aus einem sinterinaktiven Urandioxidpulver. Nach dem angegebenen Verfahren wird das Urandioxidpulver durch Feinmahlung auf Korngroessen von < = 1 μm bis 5 μm aktiviert und anschliessend trocken zu runden Partikeln granuliert. Das Granulat kann anschliessend zu Pellets gepresst und gesintert werden. (GSC)

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Additional details

Additional titles

Original title (German)
Verfahren zur Herstellung eines bindemittelfreien, direkt verpressbaren, rieselfaehigen Urandioxid Granulates guter Sinterfaehigkeit

Publishing Information

Imprint Pagination
1 p.
IPC:
Int. Cl. C01G 43/02.
IPC
Int. Cl. C01G 43/02.
Patent number
DE patent document 1592468/C/

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
8337295
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
FUEL PARTICLES; MILLING; PARTICLE SIZE; POWDERS; PRESSING; SOLID FUELS; URANIUM DIOXIDE
Descriptors DEC
ACTINIDE COMPOUNDS; CHALCOGENIDES; ENERGY SOURCES; FABRICATION; FUELS; MACHINING; MATERIALS WORKING; NUCLEAR FUELS; OXIDES; OXYGEN COMPOUNDS; REACTOR MATERIALS; SIZE; URANIUM COMPOUNDS; URANIUM OXIDES